Analysis
- max time kernel
132s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
21/02/2023, 17:03
General
- Target PI.exe
- Size 760KB
- Sample230221-vknwmsfe88
- SHA256 ecdfd7ad19c37fcfebb876a9c64c47030e6369bd81676df58fa9e7c2ce9e72e3
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
mail.rapidcheckng.com
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Port
587
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Username
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Password
@Rapidcheckng#
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- Looks up external IP address via web service 2 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.
- 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PI.exe"C:\Users\Admin\AppData\Local\Temp\PI.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\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sQbCASdFtIlBcG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCBE0.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpCBE0.tmp
memory/2312-150-0x0000000004F60000-0x0000000004F70000-memory.dmp
memory/2312-149-0x0000000006C60000-0x0000000006E22000-memory.dmp
memory/2312-148-0x0000000006A00000-0x0000000006A50000-memory.dmp
memory/2312-147-0x0000000004F60000-0x0000000004F70000-memory.dmp
memory/2312-146-0x0000000004F70000-0x0000000004FD6000-memory.dmp
memory/2312-144-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4236-136-0x00000000050D0000-0x0000000005162000-memory.dmp
memory/4236-140-0x0000000005080000-0x0000000005090000-memory.dmp
memory/4236-138-0x0000000005080000-0x0000000005090000-memory.dmp
memory/4236-139-0x00000000052F0000-0x0000000005346000-memory.dmp
memory/4236-137-0x0000000005040000-0x000000000504A000-memory.dmp
memory/4236-133-0x0000000000530000-0x00000000005F4000-memory.dmp
memory/4236-135-0x0000000005680000-0x0000000005C24000-memory.dmp
memory/4236-134-0x0000000004F80000-0x000000000501C000-memory.dmp