Analysis
- max time kernel
84s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
05/04/2023, 04:18
General
- Target Pending invoice.exe
- Size 1.0MB
- Sample230405-ewybfsdf7y
- SHA256 eb9b75de38d85a10701424dccef23e23ed5fe323b52871cde5b4054f4dc6c087
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot6201063260:AAFNunaDOhtoeTfrWIWz56huyZbdHssBU3s/sendMessage?chat_id=5932819427
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
- 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.
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Pending invoice.exe"C:\Users\Admin\AppData\Local\Temp\Pending invoice.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qpqphB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE65D.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Pending invoice.exe"{path}"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
Pending invoice.exe.log
tmpE65D.tmp
memory/2072-139-0x00000000054A0000-0x00000000054B0000-memory.dmp
memory/2072-136-0x0000000005650000-0x00000000056E2000-memory.dmp
memory/2072-137-0x0000000005620000-0x000000000562A000-memory.dmp
memory/2072-138-0x00000000058A0000-0x00000000058F6000-memory.dmp
memory/2072-133-0x0000000000AB0000-0x0000000000BBE000-memory.dmp
memory/2072-140-0x00000000054A0000-0x00000000054B0000-memory.dmp
memory/2072-135-0x0000000005B60000-0x0000000006104000-memory.dmp
memory/2072-134-0x0000000005510000-0x00000000055AC000-memory.dmp
memory/3192-144-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3192-147-0x0000000005920000-0x0000000005930000-memory.dmp
memory/3192-148-0x0000000006B20000-0x0000000006CE2000-memory.dmp
memory/3192-149-0x0000000005920000-0x0000000005930000-memory.dmp