Analysis
- max time kernel
60s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
05/10/2022, 16:38
General
- Target URGENT REQUIREMENT.exe
- Size 870KB
- Sample221005-t5c47sehd4
- SHA256 c71f3405fcb67d0f2c1bea7cb7a1a681f653712b9d92f95fbae726f5b7a78d41
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5357159221:AAEuOoQ0pUc4ccIZou0EJ5Zin0mMneE2jYg/
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
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\URGENT REQUIREMENT.exe"C:\Users\Admin\AppData\Local\Temp\URGENT REQUIREMENT.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HxPKvwbRChvYeC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C95.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\URGENT REQUIREMENT.exe"{path}"2⤵
-
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C:\Users\Admin\AppData\Local\Temp\URGENT REQUIREMENT.exe"{path}"2⤵
- 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
URGENT REQUIREMENT.exe.log
tmp6C95.tmp
memory/1052-135-0x00000000051C0000-0x000000000525C000-memory.dmp
memory/1052-136-0x00000000050E0000-0x00000000050EA000-memory.dmp
memory/1052-132-0x0000000000660000-0x0000000000740000-memory.dmp
memory/1052-134-0x0000000005120000-0x00000000051B2000-memory.dmp
memory/1052-133-0x0000000005630000-0x0000000005BD4000-memory.dmp
memory/4024-141-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4024-143-0x0000000006440000-0x00000000064A6000-memory.dmp
memory/4024-144-0x0000000006BB0000-0x0000000006C00000-memory.dmp