Analysis
- max time kernel
134s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
02/12/2022, 08:49
General
- Target USD 84K.exe
- Size 995KB
- Sample221202-kq2pksbb68
- SHA256 f135ac8542776ed7b2ac2f4a95bc34ae2fc59d2710cf3d6964b57f2fa20151ad
Malware Config
Extracted
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agenttesla
-
Protocol
smtp
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Host
mail.orogenicgroup-bd.com
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Port
587
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Username
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Password
Hossain$3400
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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
- Adds Run key to start application 2 TTPs 1 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 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\USD 84K.exe"C:\Users\Admin\AppData\Local\Temp\USD 84K.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KFOuNx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9D1B.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
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp9D1B.tmp
memory/1144-132-0x00000000007C0000-0x00000000008BE000-memory.dmp
memory/1144-133-0x0000000005900000-0x0000000005EA4000-memory.dmp
memory/1144-134-0x0000000005260000-0x00000000052F2000-memory.dmp
memory/1144-135-0x00000000053F0000-0x000000000548C000-memory.dmp
memory/1144-136-0x0000000005250000-0x000000000525A000-memory.dmp
memory/3360-140-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3360-141-0x0000000005F60000-0x0000000005FC6000-memory.dmp
memory/3360-142-0x0000000006370000-0x00000000063C0000-memory.dmp