What is NutstoreShell.dll?
NutstoreShell.dll is part of Nutstore Shell Extension and developed by Shanghai Yicun Network Ltd. according to the NutstoreShell.dll version information.
NutstoreShell.dll's description is "Nutstore Shell Extension"
NutstoreShell.dll is digitally signed by ????????????.
NutstoreShell.dll is usually located in the 'C:\ProgramData\Nutstore\shellext\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about NutstoreShell.dll.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on NutstoreShell.dll:
| Property | Value |
|---|---|
| Product name | Nutstore Shell Extension |
| Company name | Shanghai Yicun Network Ltd. |
| File description | Nutstore Shell Extension |
| Internal name | Nutstore |
| Original filename | Nutstore.dll |
| Legal copyright | Copyright (C) 2017 |
| Product version | 3, 4, 4, 0 |
| File version | 3, 4, 4, 0 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Nutstore Shell Extension |
| Company name | Shanghai Yicun Network Ltd. |
| File description | Nutstore Shell Extension |
| Internal name | Nutstore |
| Original filename | Nutstore.dll |
| Legal copyright | Copyright (C) 2017 |
| Product version | 3, 4, 4, 0 |
| File version | 3, 4, 4, 0 |
Digital signatures [?]
NutstoreShell.dll has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | ???????????? |
| Certificate issuer name | COMODO RSA Code Signing CA |
| Certificate serial number | 0096717b0b9baac854d526aacee32342e8 |
VirusTotal report
None of the 72 anti-virus programs at VirusTotal detected the NutstoreShell.dll file.
Sandbox Report
The following information was gathered by executing the file inside Cuckoo Sandbox.
Summary
Successfully executed process in sandbox.
Summary
{
"dll_loaded": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll"
],
"file_opened": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll"
],
"command_line": [
"\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll,DllMain"
],
"file_exists": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll",
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll.manifest"
],
"file_read": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap"
]
}Generic
[
{
"process_path": "C:\\Windows\\System32\\rundll32.exe",
"process_name": "rundll32.exe",
"pid": 2336,
"summary": {
"file_exists": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll",
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll.manifest"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorSystemHeapIsPrivate",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles",
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OLE\\PageAllocatorUseSystemHeap"
],
"dll_loaded": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll"
]
},
"first_seen": 1593913986.8125,
"ppid": 2740
},
{
"process_path": "C:\\Windows\\SysWOW64\\rundll32.exe",
"process_name": "rundll32.exe",
"pid": 2740,
"summary": {
"dll_loaded": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll"
],
"file_opened": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll"
],
"command_line": [
"\"C:\\Windows\\System32\\rundll32.exe\" C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll,DllMain"
],
"file_exists": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll",
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll.manifest"
],
"file_read": [
"C:\\Users\\cuck\\AppData\\Local\\Temp\\1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d.bin.dll"
],
"regkey_read": [
"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\GRE_Initialize\\DisableMetaFiles"
]
},
"first_seen": 1593913986.609375,
"ppid": 1664
},
{
"process_path": "C:\\Windows\\System32\\lsass.exe",
"process_name": "lsass.exe",
"pid": 476,
"summary": {},
"first_seen": 1593913986.328125,
"ppid": 376
}
]Signatures
[
{
"markcount": 1,
"families": [],
"description": "This executable has a PDB path",
"severity": 1,
"marks": [
{
"category": "pdb_path",
"ioc": "C:\\Users\\hanzhu\\work\\nutstore-csharp-client\\bin\\Other\\x64\\Release\\NutstoreShell.pdb",
"type": "ioc",
"description": null
}
],
"references": [],
"name": "has_pdb"
},
{
"markcount": 24,
"families": [],
"description": "Foreign language identified in PE resource",
"severity": 2,
"marks": [
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002b3b0",
"filetype": "GLS_BINARY_LSB_FIRST",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000468"
},
{
"name": "RT_STRING",
"language": "LANG_CHINESE",
"offset": "0x0002c028",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000092"
},
{
"name": "RT_STRING",
"language": "LANG_CHINESE",
"offset": "0x0002c028",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000092"
},
{
"name": "RT_STRING",
"language": "LANG_CHINESE",
"offset": "0x0002c028",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000092"
},
{
"name": "RT_STRING",
"language": "LANG_CHINESE",
"offset": "0x0002c028",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000092"
},
{
"name": "RT_STRING",
"language": "LANG_CHINESE",
"offset": "0x0002c028",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000092"
},
{
"name": "RT_STRING",
"language": "LANG_CHINESE",
"offset": "0x0002c028",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000092"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_GROUP_ICON",
"language": "LANG_CHINESE",
"offset": "0x0002c148",
"filetype": "MS Windows icon resource - 1 icon, 16x16",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000014"
},
{
"name": "RT_VERSION",
"language": "LANG_CHINESE",
"offset": "0x0002c478",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000300"
},
{
"name": "RT_VERSION",
"language": "LANG_CHINESE",
"offset": "0x0002c478",
"filetype": "data",
"sublanguage": "SUBLANG_CHINESE_SIMPLIFIED",
"type": "generic",
"size": "0x00000300"
}
],
"references": [],
"name": "origin_langid"
}
]Yara
The Yara rules did not detect anything in the file.
Network
{
"tls": [],
"udp": [
{
"src": "192.168.56.101",
"dst": "192.168.56.255",
"offset": 546,
"time": 3.076423168182373,
"dport": 137,
"sport": 137
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5326,
"time": 3.041731119155884,
"dport": 5355,
"sport": 51001
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5654,
"time": 1.0735890865325928,
"dport": 5355,
"sport": 53595
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 5982,
"time": 3.0536839962005615,
"dport": 5355,
"sport": 53848
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 6310,
"time": 1.580815076828003,
"dport": 5355,
"sport": 54255
},
{
"src": "192.168.56.101",
"dst": "224.0.0.252",
"offset": 6638,
"time": -0.09796786308288574,
"dport": 5355,
"sport": 55314
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 6966,
"time": 1.597046136856079,
"dport": 1900,
"sport": 1900
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 16764,
"time": 1.1019611358642578,
"dport": 3702,
"sport": 49152
},
{
"src": "192.168.56.101",
"dst": "239.255.255.250",
"offset": 25148,
"time": 3.117856025695801,
"dport": 1900,
"sport": 53598
}
],
"dns_servers": [],
"http": [],
"icmp": [],
"smtp": [],
"tcp": [],
"smtp_ex": [],
"mitm": [],
"hosts": [],
"pcap_sha256": "705cddd9bc651fca5303fa225960bc793ecbedabfd87b40837c2c745acd50a84",
"dns": [],
"http_ex": [],
"domains": [],
"dead_hosts": [],
"sorted_pcap_sha256": "b706021931f765f992f2d1914db1f1328b07f637e8ab80cd738adf290037e921",
"irc": [],
"https_ex": []
}Screenshots
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 3f8f1153086907db5d414b176301dde9 |
| SHA256 | 1e9a89ff933e56465e61edac676698e30e9e1c6441ba38406b116f028add350d |
What will you do with the file?
To help other users, please let us know what you will do with the file:
Malware or legitimate?
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
And now some shameless self promotion ;)
Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.
If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.
Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
No comments posted yet.