Analysis
- max time kernel
136s - max time network
124s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
19/04/2024, 17:06
General
- Target fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe
- Size 1.9MB
- Sample240419-vmpkysaa98
- SHA256 d6593053bda046cd96e0e5e508e0f57622c464738838b84984e35e683d46c414
Malware Config
Extracted
-
webmonitor
-
niiarmah.wm01.to:443
-
config_key
4EcDHH7aWbl50LayUnuRlJWUXiKQWk0O
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private_key
yvkn5wM8E
-
url_path
/recv5.php
Signatures
- RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
- WebMonitor payload 5 IoCs
- CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WLmzCRrQBmjpU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE222.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BsAawwv3bGvzT0LM.bat" "3⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
BsAawwv3bGvzT0LM.bat
tmpE222.tmp
memory/1488-10-0x0000000004EF0000-0x0000000004F00000-memory.dmp
memory/1488-11-0x0000000006B80000-0x0000000006CB8000-memory.dmp
memory/1488-4-0x0000000004D70000-0x0000000004E02000-memory.dmp
memory/1488-5-0x0000000004EF0000-0x0000000004F00000-memory.dmp
memory/1488-6-0x0000000004CE0000-0x0000000004CEA000-memory.dmp
memory/1488-7-0x0000000004E10000-0x0000000004E66000-memory.dmp
memory/1488-8-0x0000000004660000-0x0000000004672000-memory.dmp
memory/1488-9-0x0000000074820000-0x0000000074FD0000-memory.dmp
memory/1488-0-0x0000000000090000-0x0000000000288000-memory.dmp
memory/1488-3-0x0000000005280000-0x0000000005824000-memory.dmp
memory/1488-12-0x0000000006D00000-0x0000000006DF4000-memory.dmp
memory/1488-2-0x0000000004C30000-0x0000000004CCC000-memory.dmp
memory/1488-1-0x0000000074820000-0x0000000074FD0000-memory.dmp
memory/1488-22-0x0000000074820000-0x0000000074FD0000-memory.dmp
memory/4772-21-0x0000000000400000-0x00000000004F3000-memory.dmp
memory/4772-19-0x0000000000400000-0x00000000004F3000-memory.dmp
memory/4772-24-0x0000000000400000-0x00000000004F3000-memory.dmp
memory/4772-28-0x0000000000400000-0x00000000004F3000-memory.dmp
memory/4772-18-0x0000000000400000-0x00000000004F3000-memory.dmp