Analysis
- max time kernel
151s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
04/03/2022, 06:26
General
- Target documentos_datos bancarios.PDF.exe
- Size 45KB
- Sample220304-g67c8afdan
- SHA256 ea930b3655ed7afd7121e9ed20477a2b1849a7bb2a3f51d5b67697dc1614202c
Malware Config
Extracted
-
agenttesla
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Protocol
smtp
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Host
mail.centraldefiltros.cl
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Port
587
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Username
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Password
icui4cu2@@
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Email to
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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\documentos_datos bancarios.PDF.exe"C:\Users\Admin\AppData\Local\Temp\documentos_datos bancarios.PDF.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\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 192⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 193⤵
- Delays execution with timeout.exe
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-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1512-130-0x00000000001C0000-0x00000000001D2000-memory.dmp
memory/1512-131-0x0000000074770000-0x0000000074F20000-memory.dmp
memory/1512-132-0x0000000004B10000-0x0000000004B11000-memory.dmp
memory/1512-133-0x0000000005E70000-0x0000000005EC0000-memory.dmp
memory/1512-134-0x0000000005F80000-0x0000000006032000-memory.dmp
memory/1512-135-0x0000000006040000-0x00000000060D2000-memory.dmp
memory/1512-136-0x0000000006690000-0x0000000006C34000-memory.dmp
memory/4776-137-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4776-138-0x0000000005130000-0x00000000051CC000-memory.dmp
memory/4776-139-0x0000000074770000-0x0000000074F20000-memory.dmp
memory/4776-140-0x0000000004E20000-0x0000000004EB2000-memory.dmp
memory/4776-141-0x0000000005EB0000-0x0000000005F16000-memory.dmp
memory/4776-142-0x0000000005EA0000-0x0000000005EAA000-memory.dmp