Analysis
- max time kernel
141s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
06/09/2022, 01:03
General
- Target SoA.exe
- Size 792KB
- Sample220906-becrmscfh6
- SHA256 db1c8853c7a2b03c19247bde4ab3ea41cbf7a15c91caac0ea1eb3cdb265ce3b2
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot1644755040:AAGRTnph6BdO8-t1bJaOyVu9aeuJErmisqs/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Drops file in Drivers directory 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
- Adds Run key to start application 2 TTPs 1 IoCs
- 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\SoA.exe"C:\Users\Admin\AppData\Local\Temp\SoA.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\rGRlkDjdwJWD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFC27.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SoA.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- 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
SoA.exe.log
tmpFC27.tmp
memory/4008-132-0x0000000000AE0000-0x0000000000BAC000-memory.dmp
memory/4008-133-0x0000000005B10000-0x00000000060B4000-memory.dmp
memory/4008-134-0x0000000005560000-0x00000000055F2000-memory.dmp
memory/4008-135-0x00000000056A0000-0x000000000573C000-memory.dmp
memory/4008-136-0x0000000005530000-0x000000000553A000-memory.dmp
memory/5012-140-0x0000000000400000-0x000000000043A000-memory.dmp
memory/5012-142-0x0000000005CB0000-0x0000000005D16000-memory.dmp
memory/5012-143-0x0000000006380000-0x00000000063D0000-memory.dmp