Analysis
- max time kernel
125s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
25/08/2022, 11:53
General
- Target 61539295b55b8e31593cc320d22c3401.exe
- Size 51KB
- Sample220825-n2al1sdec4
- SHA256 a5383b4e2f4ba2bd28112bfb06a100850109568b5e3fc7bcdff4c0fcf12fa6ff
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot2092755520:AAFUT-2SMjjd39KTAiZYfccbaFzWXamzjz4/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.
- 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.
- Suspicious behavior: EnumeratesProcesses 4 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\61539295b55b8e31593cc320d22c3401.exe"C:\Users\Admin\AppData\Local\Temp\61539295b55b8e31593cc320d22c3401.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- 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 UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANwA=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⤵
- Drops file in Drivers directory
- 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/3364-133-0x0000000005780000-0x00000000057D0000-memory.dmp
memory/3364-134-0x0000000005890000-0x0000000005942000-memory.dmp
memory/3364-135-0x0000000005F00000-0x00000000064A4000-memory.dmp
memory/3364-136-0x00000000059F0000-0x0000000005A82000-memory.dmp
memory/3364-137-0x0000000005980000-0x00000000059A2000-memory.dmp
memory/3364-132-0x00000000001C0000-0x00000000001D2000-memory.dmp
memory/4836-149-0x00000000067B0000-0x00000000067BA000-memory.dmp
memory/4836-148-0x0000000005080000-0x000000000511C000-memory.dmp
memory/4836-147-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4940-140-0x0000000004FC0000-0x00000000055E8000-memory.dmp
memory/4940-143-0x0000000005D20000-0x0000000005D3E000-memory.dmp
memory/4940-144-0x0000000007570000-0x0000000007BEA000-memory.dmp
memory/4940-145-0x0000000006210000-0x000000000622A000-memory.dmp
memory/4940-142-0x0000000005740000-0x00000000057A6000-memory.dmp
memory/4940-141-0x0000000005660000-0x00000000056C6000-memory.dmp
memory/4940-139-0x00000000027C0000-0x00000000027F6000-memory.dmp