Analysis
- max time kernel
70s - max time network
124s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
04/07/2022, 03:19
General
- Target ARRIVAL NOTICE WHL050C538368.exe
- Size 666KB
- Sample220704-dt6pdaebhp
- SHA256 6cfbf205225e6ba71eb7f9d214e2d93d932946eb7ff5821f9027c589a4e2ae77
Malware Config
Extracted
-
agenttesla
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Protocol
smtp
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Host
mail.lakemitchellconstruction.com
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Port
587
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Username
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Password
CS@2849
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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
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 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\ARRIVAL NOTICE WHL050C538368.exe"C:\Users\Admin\AppData\Local\Temp\ARRIVAL NOTICE WHL050C538368.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\ttpDldQIG.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\ttpDldQIG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C0F.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- 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
tmp3C0F.tmp
memory/216-153-0x0000000005DF0000-0x0000000005E40000-memory.dmp
memory/216-142-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4124-151-0x00000000079A0000-0x00000000079AA000-memory.dmp
memory/4124-156-0x0000000007C50000-0x0000000007C58000-memory.dmp
memory/4124-138-0x0000000002D00000-0x0000000002D36000-memory.dmp
memory/4124-155-0x0000000007C70000-0x0000000007C8A000-memory.dmp
memory/4124-141-0x0000000005940000-0x0000000005F68000-memory.dmp
memory/4124-154-0x0000000007B60000-0x0000000007B6E000-memory.dmp
memory/4124-152-0x0000000007BB0000-0x0000000007C46000-memory.dmp
memory/4124-143-0x0000000005860000-0x0000000005882000-memory.dmp
memory/4124-144-0x0000000005F70000-0x0000000005FD6000-memory.dmp
memory/4124-145-0x0000000006620000-0x000000000663E000-memory.dmp
memory/4124-146-0x0000000006BF0000-0x0000000006C22000-memory.dmp
memory/4124-147-0x00000000708D0000-0x000000007091C000-memory.dmp
memory/4124-148-0x0000000006BD0000-0x0000000006BEE000-memory.dmp
memory/4124-149-0x0000000007F70000-0x00000000085EA000-memory.dmp
memory/4124-150-0x0000000007930000-0x000000000794A000-memory.dmp
memory/4840-130-0x0000000000790000-0x000000000083C000-memory.dmp
memory/4840-132-0x0000000005220000-0x00000000052B2000-memory.dmp
memory/4840-131-0x0000000005890000-0x0000000005E34000-memory.dmp
memory/4840-133-0x00000000051E0000-0x00000000051EA000-memory.dmp
memory/4840-134-0x00000000092D0000-0x000000000936C000-memory.dmp
memory/4840-135-0x0000000009060000-0x00000000090C6000-memory.dmp