Analysis
- max time kernel
128s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
- submitted
26/04/2023, 15:18
General
- Target PDA.exe
- Size 809KB
- Sample230426-sppmmaca6t
- SHA256 2bb51206c13e8ede6a1e353caeae145b453ab46ddd63599e124362b13dac6641
Malware Config
Extracted
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agenttesla
-
Protocol
smtp
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Host
mail.mercamaq.com.br
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Port
587
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Username
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Password
!#Merc354
-
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.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 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).
- 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 SetWindowsHookEx 1 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\PDA.exe"C:\Users\Admin\AppData\Local\Temp\PDA.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\gyBuebW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp734.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PDA.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\PDA.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
PDA.exe.log
tmp734.tmp
memory/924-148-0x0000000004F70000-0x0000000004F80000-memory.dmp
memory/924-144-0x0000000000400000-0x0000000000430000-memory.dmp
memory/924-151-0x0000000006C90000-0x0000000006E52000-memory.dmp
memory/924-150-0x0000000006940000-0x0000000006990000-memory.dmp
memory/924-149-0x0000000004F70000-0x0000000004F80000-memory.dmp
memory/924-147-0x0000000004E90000-0x0000000004EF6000-memory.dmp
memory/1756-139-0x0000000005AD0000-0x0000000005AE0000-memory.dmp
memory/1756-135-0x0000000005E70000-0x0000000006414000-memory.dmp
memory/1756-134-0x00000000057F0000-0x000000000588C000-memory.dmp
memory/1756-140-0x0000000005AD0000-0x0000000005AE0000-memory.dmp
memory/1756-133-0x0000000000D50000-0x0000000000E20000-memory.dmp
memory/1756-136-0x00000000058C0000-0x0000000005952000-memory.dmp
memory/1756-138-0x0000000005AE0000-0x0000000005B36000-memory.dmp
memory/1756-137-0x00000000057C0000-0x00000000057CA000-memory.dmp