File name:

Silver Rat [Re Lab].7z

Full analysis: https://app.any.run/tasks/ed6ae5f2-de9d-48cb-93c5-6ef35ea13f4b
Verdict: Malicious activity
Analysis date: December 02, 2023, 14:59:09
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-7z-compressed
File info: 7-zip archive data, version 0.4
MD5:

F06813AA321C43A69A04904CFA735A44

SHA1:

820A0F9F4C00AF6CE2583218019AD14A5C5592E2

SHA256:

A384BAD25740A4B783EAADD6ADE53D96E878E1313C34321DDFB23149FBF6366D

SSDEEP:

98304:y1xQbKAe1zHMB9LWVIj53xwaZtiYeNllW9BpKydwe/TNtc4+odMPWKkGchJ0TNi8:8lDTXY4BXyMM7kNBuybJMj5C

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Starts Visual C# compiler

      • SilverRat.exe (PID: 2928)

    • Drops the executable file immediately after the start

      • csc.exe (PID: 3996)

  • SUSPICIOUS

    • Process drops legitimate windows executable

      • WinRAR.exe (PID: 564)

    • Reads Internet Explorer settings

      • SilverRat.exe (PID: 2928)

    • Reads the Internet Settings

      • SilverRat.exe (PID: 2928)

    • Uses .NET C# to load dll

      • SilverRat.exe (PID: 2928)

  • INFO

    • Manual execution by a user

      • SilverRat.exe (PID: 2928)

    • Reads the machine GUID from the registry

      • SilverRat.exe (PID: 2928)
      • csc.exe (PID: 3996)
      • cvtres.exe (PID: 3436)

    • Reads the computer name

      • SilverRat.exe (PID: 2928)

    • Drops the executable file immediately after the start

      • WinRAR.exe (PID: 564)

    • Checks supported languages

      • SilverRat.exe (PID: 2928)
      • csc.exe (PID: 3996)
      • cvtres.exe (PID: 3436)

    • Creates files or folders in the user directory

      • SilverRat.exe (PID: 2928)

    • Reads Environment values

      • SilverRat.exe (PID: 2928)

    • Create files in a temporary directory

      • SilverRat.exe (PID: 2928)
      • cvtres.exe (PID: 3436)

    • Checks proxy server information

      • SilverRat.exe (PID: 2928)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.7z | 7-Zip compressed archive (v0.4) (57.1)
.7z | 7-Zip compressed archive (gen) (42.8)
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
44
Monitored processes
4
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start winrar.exe no specs silverrat.exe csc.exe no specs cvtres.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
564"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\Desktop\Silver Rat [Re Lab].7z"C:\Program Files\WinRAR\WinRAR.exe—explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
2928"C:\Users\admin\Desktop\Silver Rat [Re Lab]\SilverRat.exe" C:\Users\admin\Desktop\Silver Rat [Re Lab]\SilverRat.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
SilverRat
Exit code:
0
Version:
1.0.0.0
Modules
Images
c:\users\admin\desktop\silver rat [re lab]\silverrat.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
3436C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:AMD64 "/OUT:C:\Users\admin\AppData\Local\Temp\RES1DF.tmp" "c:\Users\admin\Desktop\Silver Rat [Re Lab]\CSCCEB2AA897274D448758D665695F31A5.TMP"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe—csc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
14.10.25028.0 built by: VCTOOLSD15RTM
Modules
Images
c:\windows\microsoft.net\framework\v4.0.30319\cvtres.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\vcruntime140_clr0400.dll
c:\windows\system32\ucrtbase_clr0400.dll
3996"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\nmowda5m.cmdline"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe—SilverRat.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
4.8.3761.0 built by: NET48REL1
Modules
Images
c:\windows\microsoft.net\framework\v4.0.30319\csc.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\vcruntime140_clr0400.dll
c:\windows\system32\ucrtbase_clr0400.dll
Total events
5 079
Read events
5 029
Write events
47
Delete events
3

Modification events

(PID) Process:(564) WinRAR.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\17F\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:2
Value:
C:\Users\admin\Desktop\virtio_ivshmem_master_build.zip
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:1
Value:
C:\Users\admin\Desktop\Win7-KB3191566-x86.zip
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\Desktop\phacker.zip
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:mtime
Value:
100
(PID) Process:(564) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface
Operation:writeName:ShowPassword
Value:
0
(PID) Process:(2928) SilverRat.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU
Operation:writeName:NodeSlots
Value:
020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202
Executable files
16
Suspicious files
24
Text files
8
Unknown types
0

Dropped files

PID
Process
Filename
Type
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\Profiles\Builder.xmlhtml
MD5:3FCD4AC4720FEBAE7ED0B81913DAAF1C
SHA256:B4B7D0F7878A60E5D641443A7D4720E178568E6FEBBB38A243D3B9FB8A30842B
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\Plugins\OptionsForm.dll.configxml
MD5:A78FA19B73BAA4B9BB1D29D22DFBEA83
SHA256:C53F33A5C3A7DFA005F62BC9D81AE8D6E5EB019463BD2986C32CA00CE9404F1A
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\Bunifu.Licensing.dllexecutable
MD5:C18A9E44E200C7315A1868CAAB894293
SHA256:661A5BE944DC9FB2E0EBA01C3C0584FEB3ECCA44877D77F54D0F409CE801AF22
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\stub.cstext
MD5:255787B7316051D866D8A8A384102C9A
SHA256:1FFEF5D31A2D6DBC01177FCF7835C9D9EEB4334BD39B20EC76EB2BE1BA429F3F
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\Plugins\Chat.dllbinary
MD5:736292DD81AD93BFF84C28CE5DE02385
SHA256:0C83898F29762A4E3650FC5F5A8A3C3114D06DA8F6A3FB2FA8B990A36716D6BD
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\cgeoip.dllexecutable
MD5:6D6E172E7965D1250A4A6F8A0513AA9F
SHA256:D1DDD15E9C727A5ECF78D3918C17AEE0512F5B181AD44952686BEB89146E6BD0
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\bunifu.ui.winforms.dllexecutable
MD5:686833FCCD95B4F5C8D7695A2D45955D
SHA256:578CBCFB7A01234907FB6314918EFD23A502882C79D0EE3C2E7D4AE0CF63EBC2
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\bunifu.ui.winforms.1.5.3.dllexecutable
MD5:C1D51A0E747C9D6156410CB3C5B97A60
SHA256:6937052B86BC251BE510B110E08FC5089D3BD687CE2333A85EA6D5C2C09B437A
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\guna.ui2.dllexecutable
MD5:ACEC68D05E0B9B6C34A24DA530DC07B2
SHA256:BF72939922AFA2CD17071F5170B4A82D05BCEB1FC33CE29CDFBC68DBB97F0277
564WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRb564.15881\Silver Rat [Re Lab]\Plugins\Camera.dllbinary
MD5:E9E0B5FC7B1ED6F01D08D981D1CD761F
SHA256:2C82773466F72756D8152E4D5DC24D2EC954BFE5A6E7CAE587D2E1D316EF43D0
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
DNS requests
2
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
868
svchost.exe
23.35.228.137:80
—
AKAMAI-AS
DE
unknown
4
System
192.168.100.255:137
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
868
svchost.exe
23.218.208.137:80
armmf.adobe.com
AKAMAI-AS
DE
unknown

DNS requests

Domain
IP
Reputation
armmf.adobe.com
  • 23.218.208.137
whitelisted
dns.msftncsi.com
  • 131.107.255.255
shared

Threats

No threats detected
Process
Message
SilverRat.exe
Animation started.
SilverRat.exe
Animation stopped.
SilverRat.exe
Wait timer started.
SilverRat.exe
Animation started.
SilverRat.exe
Wait timer elapsed.
SilverRat.exe
Animation stopped.
SilverRat.exe
Animation started.
SilverRat.exe
Animation stopped.
SilverRat.exe
Wait timer started.
SilverRat.exe
Wait timer elapsed.
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Reports
Silver Rat [Re Lab].7z