Analysis
- max time kernel
69s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
23/12/2022, 04:08
General
- Target VULKAN PVT RFQ 22122022.exe
- Size 245KB
- Sample221223-ep85dafg67
- SHA256 b3d857405bc06ef7e5822e4d12f5d7128bf50ba6068553ea90db865b35a19a88
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Executes dropped EXE 2 IoCs
- 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
- 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 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\VULKAN PVT RFQ 22122022.exe"C:\Users\Admin\AppData\Local\Temp\VULKAN PVT RFQ 22122022.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmvmpds.exe"C:\Users\Admin\AppData\Local\Temp\tmvmpds.exe" C:\Users\Admin\AppData\Local\Temp\kkbsiqwz.vg2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\tmvmpds.exe"C:\Users\Admin\AppData\Local\Temp\tmvmpds.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
kkbsiqwz.vg
tepppbewo.uw
tmvmpds.exe
tmvmpds.exe
tmvmpds.exe
memory/3536-139-0x0000000005C10000-0x00000000061B4000-memory.dmp
memory/3536-140-0x0000000005740000-0x00000000057DC000-memory.dmp
memory/3536-141-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3536-142-0x0000000006B50000-0x0000000006D12000-memory.dmp
memory/3536-143-0x0000000006A20000-0x0000000006AB2000-memory.dmp
memory/3536-144-0x00000000069F0000-0x00000000069FA000-memory.dmp