Analysis
- max time kernel
140s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
28/09/2022, 08:13
General
- Target SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe
- Size 16KB
- Sample220928-j4earsfdc4
- SHA256 a2a3fd4b8c4a6ced54de6a596a9cd01b974ecd40fa7b016da293a1fb267efd0a
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5686390670:AAH21dU8FukGdd0mBx05kATfrHXzwOBBg1Q/
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
- 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.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe2⤵
- Accesses Microsoft Outlook profiles
- 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
SecuriteInfo.com.IL.Trojan.MSILZilla.23263.25992.20476.exe.log
memory/2516-136-0x00000000054A0000-0x0000000005AC8000-memory.dmp
memory/2516-135-0x0000000004CD0000-0x0000000004D06000-memory.dmp
memory/2516-141-0x0000000006770000-0x000000000678A000-memory.dmp
memory/2516-137-0x0000000005BA0000-0x0000000005C06000-memory.dmp
memory/2516-138-0x0000000005C80000-0x0000000005CE6000-memory.dmp
memory/2516-139-0x0000000006270000-0x000000000628E000-memory.dmp
memory/2516-140-0x00000000078B0000-0x0000000007F2A000-memory.dmp
memory/4064-143-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4064-145-0x0000000005BE0000-0x0000000006184000-memory.dmp
memory/4064-146-0x00000000056D0000-0x000000000576C000-memory.dmp
memory/4064-147-0x00000000069E0000-0x0000000006A30000-memory.dmp
memory/4064-148-0x00000000070C0000-0x0000000007152000-memory.dmp
memory/4064-149-0x00000000070A0000-0x00000000070AA000-memory.dmp
memory/4364-132-0x0000000000500000-0x000000000050A000-memory.dmp
memory/4364-133-0x0000000008B70000-0x0000000008B92000-memory.dmp