Analysis
- max time kernel
71s - max time network
133s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
04/07/2022, 17:57
General
- Target flosh.exe
- Size 52KB
- Sample220704-wjkchacee5
- SHA256 cd4af46185777fd2e5fc2bed90454d28f54273e797afc77ae8230df60b26f3bb
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot5583198829:AAHbRGAnlJ9Tg3ETPxGtj_jZ8tVhm4DB4io/sendMessage?chat_id=1148000519
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
- Adds Run key to start application 2 TTPs 1 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\flosh.exe"C:\Users\Admin\AppData\Local\Temp\flosh.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
- 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
Loading Replay Monitor...
Downloads
memory/372-138-0x0000000007570000-0x0000000007BEA000-memory.dmp
memory/372-139-0x0000000006210000-0x000000000622A000-memory.dmp
memory/372-132-0x0000000002740000-0x0000000002776000-memory.dmp
memory/372-133-0x0000000004E90000-0x00000000054B8000-memory.dmp
memory/372-134-0x0000000004D80000-0x0000000004DA2000-memory.dmp
memory/372-135-0x0000000005500000-0x0000000005566000-memory.dmp
memory/372-136-0x0000000005720000-0x0000000005786000-memory.dmp
memory/372-137-0x0000000005D40000-0x0000000005D5E000-memory.dmp
memory/1620-142-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1620-143-0x0000000005C20000-0x00000000061C4000-memory.dmp
memory/1620-144-0x0000000005670000-0x000000000570C000-memory.dmp
memory/1620-145-0x00000000065F0000-0x00000000067B2000-memory.dmp
memory/1620-146-0x0000000006570000-0x000000000657A000-memory.dmp
memory/4680-140-0x0000000005FB0000-0x0000000006042000-memory.dmp
memory/4680-130-0x0000000000330000-0x0000000000344000-memory.dmp