Analysis
- max time kernel
105s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
30/01/2023, 10:34
General
- Target 9874378987.exe
- Size 281KB
- Sample230130-ml72xabf6v
- SHA256 46bfebe7ffd387d099666f45f5929e5db96cb5543b1991a29aa4c541c32f8542
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\9874378987.exe"C:\Users\Admin\AppData\Local\Temp\9874378987.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\bmeryt.exe"C:\Users\Admin\AppData\Local\Temp\bmeryt.exe" C:\Users\Admin\AppData\Local\Temp\ucoaidoyzj.oyr2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\bmeryt.exe"C:\Users\Admin\AppData\Local\Temp\bmeryt.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
bmeryt.exe
bmeryt.exe
bmeryt.exe
ucoaidoyzj.oyr
yfnvjjyrdyl.umq
memory/3360-139-0x0000000000400000-0x0000000000437000-memory.dmp
memory/3360-140-0x0000000004970000-0x0000000004F14000-memory.dmp
memory/3360-141-0x0000000004F60000-0x0000000004FFC000-memory.dmp
memory/3360-142-0x0000000005B70000-0x0000000005D32000-memory.dmp
memory/3360-143-0x0000000005D40000-0x0000000005DD2000-memory.dmp
memory/3360-144-0x0000000005E20000-0x0000000005E2A000-memory.dmp