Analysis
- max time kernel
147s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
09/05/2022, 03:18
General
- Target Shipment Advise & BL draft.exe
- Size 542KB
- Sample220509-dtldfaccc8
- SHA256 98e851cceece53c60eea3f983daa98881d60125370f1c64640cfb326ba2a211e
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.iuhk.org
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Port
587
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Username
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Password
oT51%8
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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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Shipment Advise & BL draft.exe"C:\Users\Admin\AppData\Local\Temp\Shipment Advise & BL draft.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\DGyJvK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCD76.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Shipment Advise & BL draft.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4044 -s 14203⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4044 -ip 40441⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s camsvc1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Shipment Advise & BL draft.exe.log
tmpCD76.tmp
memory/3136-130-0x0000000000ED0000-0x0000000000F5E000-memory.dmp
memory/3136-131-0x0000000005E00000-0x00000000063A4000-memory.dmp
memory/3136-132-0x00000000058F0000-0x0000000005982000-memory.dmp
memory/3136-133-0x0000000005A30000-0x0000000005ACC000-memory.dmp
memory/3136-134-0x00000000059A0000-0x00000000059AA000-memory.dmp
memory/4044-138-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4044-140-0x0000000005A00000-0x0000000005A66000-memory.dmp