Analysis
- max time kernel
191s - max time network
204s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
24/11/2022, 13:24
General
- Target MV ZHONG MENG HANG LIAN.exe
- Size 430KB
- Sample221124-qndgvsah21
- SHA256 0b4359771fb67318c3cdc36e1c33b202aec9595d1a66bdd214ca54f44f478906
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe"C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe"C:\Users\Admin\AppData\Local\Temp\MV ZHONG MENG HANG LIAN.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/220-148-0x0000000006720000-0x000000000672A000-memory.dmp
memory/220-147-0x0000000006770000-0x0000000006932000-memory.dmp
memory/220-146-0x00000000054B0000-0x000000000554C000-memory.dmp
memory/220-145-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2312-138-0x0000000005B10000-0x0000000006138000-memory.dmp
memory/2312-139-0x00000000061B0000-0x0000000006216000-memory.dmp
memory/2312-140-0x00000000062D0000-0x0000000006336000-memory.dmp
memory/2312-141-0x0000000006910000-0x000000000692E000-memory.dmp
memory/2312-142-0x0000000007F70000-0x00000000085EA000-memory.dmp
memory/2312-143-0x0000000006E00000-0x0000000006E1A000-memory.dmp
memory/2312-137-0x0000000002FE0000-0x0000000003016000-memory.dmp
memory/3044-132-0x0000000000660000-0x00000000006D2000-memory.dmp
memory/3044-135-0x0000000005C80000-0x0000000005CA2000-memory.dmp
memory/3044-134-0x0000000006200000-0x00000000067A4000-memory.dmp
memory/3044-133-0x0000000005BB0000-0x0000000005C42000-memory.dmp