Analysis
- max time kernel
105s - max time network
109s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
15/04/2022, 06:48
General
- Target SK098765456789090000.exe
- Size 329KB
- Sample220415-hkrw3sdda2
- SHA256 f3e011fb43f226885e514c92638da2db70d78fd53ee94ab2ab476bc588ebc0ea
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.sienkakupeste.com
-
Port
587
-
Username
-
Password
010203sienka++
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
- Drops startup file 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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- 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\SK098765456789090000.exe"C:\Users\Admin\AppData\Local\Temp\SK098765456789090000.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\SK098765456789090000.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SK098765456789090000.exe"C:\Users\Admin\AppData\Local\Temp\SK098765456789090000.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
SK098765456789090000.exe.log
memory/400-131-0x0000000005200000-0x00000000057A4000-memory.dmp
memory/400-132-0x0000000004CF0000-0x0000000004D82000-memory.dmp
memory/400-133-0x0000000004D90000-0x0000000004E2C000-memory.dmp
memory/400-130-0x0000000000230000-0x0000000000288000-memory.dmp
memory/3044-145-0x0000000006A70000-0x0000000006A7A000-memory.dmp
memory/3044-144-0x0000000006BC0000-0x0000000006D82000-memory.dmp
memory/3044-141-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4972-139-0x0000000005A70000-0x0000000005AD6000-memory.dmp
memory/4972-138-0x0000000005A00000-0x0000000005A66000-memory.dmp
memory/4972-137-0x0000000005130000-0x0000000005152000-memory.dmp
memory/4972-143-0x0000000006100000-0x000000000611E000-memory.dmp
memory/4972-136-0x00000000053D0000-0x00000000059F8000-memory.dmp
memory/4972-135-0x00000000027B0000-0x00000000027E6000-memory.dmp
memory/4972-146-0x00000000070E0000-0x0000000007176000-memory.dmp
memory/4972-147-0x00000000065D0000-0x00000000065EA000-memory.dmp
memory/4972-148-0x0000000006630000-0x0000000006652000-memory.dmp