Analysis
- max time kernel
73s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
16/12/2022, 09:18
General
- Target payment receipt.exe
- Size 881KB
- Sample221216-k9lsgaee37
- SHA256 b85aa63d88b84be274b0b6017a96d45c00e92ca0fbd3e00adbe7105f5997ec37
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot1644755040:AAGRTnph6BdO8-t1bJaOyVu9aeuJErmisqs/sendMessage?chat_id=1637651323
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.
- 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 2 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\payment receipt.exe"C:\Users\Admin\AppData\Local\Temp\payment receipt.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\vWfWsjteDPdYT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE218.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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
tmpE218.tmp
memory/3356-140-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3356-141-0x0000000006370000-0x0000000006532000-memory.dmp
memory/4704-132-0x0000000000A50000-0x0000000000B32000-memory.dmp
memory/4704-133-0x0000000005980000-0x0000000005F24000-memory.dmp
memory/4704-134-0x00000000053D0000-0x0000000005462000-memory.dmp
memory/4704-135-0x0000000005470000-0x000000000550C000-memory.dmp
memory/4704-136-0x0000000005390000-0x000000000539A000-memory.dmp