Analysis
- max time kernel
156s - max time network
165s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
22/02/2022, 11:04
General
- Target Vessel's Details.exe
- Size 1.0MB
- Sample220222-m591lsgad5
- SHA256 83a48b4d9d6b7600a6c597af9bf03368bcf3a6a84be1c0f33f064eea3777d8e3
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot1707668650:AAFJBUcmT6aGlXwy3-beDARhm0ji930DCzM/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 6 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 16 IoCs
- Suspicious use of AdjustPrivilegeToken 9 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Vessel's Details.exe"C:\Users\Admin\AppData\Local\Temp\Vessel's Details.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\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LvTqTTDl.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LvTqTTDl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp43F7.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Vessel's Details.exe"C:\Users\Admin\AppData\Local\Temp\Vessel's Details.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Vessel's Details.exe"C:\Users\Admin\AppData\Local\Temp\Vessel's Details.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1232-136-0x000001E107580000-0x000001E107590000-memory.dmp
memory/1232-137-0x000001E107C20000-0x000001E107C30000-memory.dmp
memory/1232-138-0x000001E10A300000-0x000001E10A304000-memory.dmp
memory/3968-131-0x0000000000060000-0x0000000000170000-memory.dmp
memory/3968-132-0x0000000005030000-0x00000000055D4000-memory.dmp
memory/3968-133-0x0000000004B20000-0x0000000004BB2000-memory.dmp
memory/3968-134-0x0000000004CE0000-0x0000000004CE1000-memory.dmp
memory/3968-135-0x0000000004BC0000-0x0000000004BCA000-memory.dmp
memory/3968-139-0x0000000005680000-0x000000000571C000-memory.dmp
memory/3968-130-0x000000007514E000-0x000000007514F000-memory.dmp
memory/4168-148-0x0000000005570000-0x0000000005592000-memory.dmp
memory/4168-153-0x00000000052E0000-0x00000000052FE000-memory.dmp
memory/4168-144-0x00000000050E2000-0x00000000050E3000-memory.dmp
memory/4168-145-0x0000000005720000-0x0000000005D48000-memory.dmp
memory/4168-165-0x0000000007B60000-0x0000000007B68000-memory.dmp
memory/4168-142-0x000000007514E000-0x000000007514F000-memory.dmp
memory/4168-140-0x0000000002C10000-0x0000000002C46000-memory.dmp
memory/4168-164-0x0000000007B80000-0x0000000007B9A000-memory.dmp
memory/4168-163-0x0000000007A70000-0x0000000007A7E000-memory.dmp
memory/4168-151-0x0000000005610000-0x0000000005676000-memory.dmp
memory/4168-152-0x0000000005F00000-0x0000000005F66000-memory.dmp
memory/4168-143-0x00000000050E0000-0x00000000050E1000-memory.dmp
memory/4168-154-0x00000000050E5000-0x00000000050E7000-memory.dmp
memory/4168-155-0x0000000006B00000-0x0000000006B32000-memory.dmp
memory/4168-156-0x0000000070F80000-0x0000000070FCC000-memory.dmp
memory/4168-157-0x0000000006AE0000-0x0000000006AFE000-memory.dmp
memory/4168-159-0x0000000007E80000-0x00000000084FA000-memory.dmp
memory/4168-158-0x000000007F3D0000-0x000000007F3D1000-memory.dmp
memory/4168-160-0x0000000007840000-0x000000000785A000-memory.dmp
memory/4168-161-0x00000000078B0000-0x00000000078BA000-memory.dmp
memory/4168-162-0x0000000007AC0000-0x0000000007B56000-memory.dmp
memory/4616-149-0x000000007514E000-0x000000007514F000-memory.dmp
memory/4616-150-0x0000000004F10000-0x0000000004F11000-memory.dmp
memory/4616-146-0x0000000000400000-0x000000000043C000-memory.dmp