Analysis
- max time kernel
147s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
15/06/2024, 01:46
General
- Target RFQ-773463738342337833748334.exe
- Size 1.8MB
- Sample240615-b65azavdpc
- SHA256 d6c0abd10f0fdda2bc4853cda6248a75f6b9c4a21de781b18be66519e124fb56
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
cphost09.qhoster.net
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Port
587
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Username
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Password
Emotion!22
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- UAC bypass 3 TTPs 1 IoCs
- Windows security bypass 2 TTPs 2 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Windows security modification 2 TTPs 3 IoCs
- Checks whether UAC is enabled 1 TTPs 2 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).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
- System policy modification 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ-773463738342337833748334.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-773463738342337833748334.exe"1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ-773463738342337833748334.exe" -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4416 -s 17683⤵
- Program crash
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-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4416 -ip 44161⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_bucl2ud4.m4y.ps1
memory/3544-3-0x000002509F910000-0x000002509F9A4000-memory.dmp
memory/3544-2-0x00007FFD5B5C0000-0x00007FFD5C081000-memory.dmp
memory/3544-0-0x00007FFD5B5C3000-0x00007FFD5B5C5000-memory.dmp
memory/3544-1-0x000002509DB30000-0x000002509DB50000-memory.dmp
memory/3544-23-0x00007FFD5B5C0000-0x00007FFD5C081000-memory.dmp
memory/3972-4-0x00007FFD5B5C0000-0x00007FFD5C081000-memory.dmp
memory/3972-5-0x00007FFD5B5C0000-0x00007FFD5C081000-memory.dmp
memory/3972-11-0x000002A4568A0000-0x000002A4568C2000-memory.dmp
memory/3972-22-0x00007FFD5B5C0000-0x00007FFD5C081000-memory.dmp
memory/3972-20-0x000002A456AA0000-0x000002A456CBC000-memory.dmp
memory/4416-16-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4416-17-0x0000000005950000-0x0000000005EF4000-memory.dmp
memory/4416-21-0x0000000005410000-0x0000000005476000-memory.dmp