Analysis
- max time kernel
31s - max time network
33s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
02/03/2023, 14:30
General
- Target URGENT REQUEST.exe
- Size 309KB
- Sample230302-rt5zqsdc92
- SHA256 5bf208344ea17831afe203650df2ff3412f0c8f4daa5565c510e71ab8ff1644a
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 3 IoCs
- 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.
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\URGENT REQUEST.exe"C:\Users\Admin\AppData\Local\Temp\URGENT REQUEST.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ouwlcss.exe"C:\Users\Admin\AppData\Local\Temp\ouwlcss.exe" C:\Users\Admin\AppData\Local\Temp\cbxmsjeph.awy2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ouwlcss.exe"C:\Users\Admin\AppData\Local\Temp\ouwlcss.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- 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
cbxmsjeph.awy
ouwlcss.exe
ouwlcss.exe
ouwlcss.exe
ouwlcss.exe
trdnmfkgx.gl
ouwlcss.exe
ouwlcss.exe
ouwlcss.exe
memory/284-69-0x0000000000400000-0x0000000000441000-memory.dmp
memory/284-72-0x0000000000400000-0x0000000000441000-memory.dmp
memory/284-74-0x0000000000400000-0x0000000000441000-memory.dmp
memory/284-75-0x0000000000450000-0x0000000000480000-memory.dmp
memory/284-76-0x00000000049A0000-0x00000000049E0000-memory.dmp