Analysis
- max time kernel
133s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
19/09/2023, 07:50
General
- Target Shipping documents SST2112-250.exe
- Size 611KB
- Sample230919-jn857sff21
- SHA256 e75bb7380b7386458dfd803bfeab63228ff0e3d27121db683675458f2affbe10
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.wecaresvc.com
-
Port
587
-
Username
-
Password
u9367gk8qc
-
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
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 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 WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Shipping documents SST2112-250.exe"C:\Users\Admin\AppData\Local\Temp\Shipping documents SST2112-250.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\kODPQLHS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D74.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Shipping documents SST2112-250.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 v15
Replay Monitor
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Downloads
tmp2D74.tmp
memory/1964-27-0x00000000053A0000-0x00000000053B0000-memory.dmp
memory/1964-26-0x00000000743F0000-0x0000000074BA0000-memory.dmp
memory/1964-25-0x0000000006C00000-0x0000000006C50000-memory.dmp
memory/1964-22-0x00000000053A0000-0x00000000053B0000-memory.dmp
memory/1964-23-0x0000000005560000-0x00000000055C6000-memory.dmp
memory/1964-20-0x00000000743F0000-0x0000000074BA0000-memory.dmp
memory/1964-18-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2108-12-0x0000000006CA0000-0x0000000006CFC000-memory.dmp
memory/2108-8-0x00000000060D0000-0x0000000006424000-memory.dmp
memory/2108-10-0x00000000743F0000-0x0000000074BA0000-memory.dmp
memory/2108-11-0x00000000057C0000-0x00000000057D0000-memory.dmp
memory/2108-0-0x00000000743F0000-0x0000000074BA0000-memory.dmp
memory/2108-13-0x0000000006E40000-0x0000000006EB8000-memory.dmp
memory/2108-14-0x0000000006D10000-0x0000000006D52000-memory.dmp
memory/2108-9-0x0000000005980000-0x000000000598C000-memory.dmp
memory/2108-7-0x0000000005830000-0x0000000005886000-memory.dmp
memory/2108-6-0x0000000005530000-0x000000000553A000-memory.dmp
memory/2108-21-0x00000000743F0000-0x0000000074BA0000-memory.dmp
memory/2108-5-0x00000000057C0000-0x00000000057D0000-memory.dmp
memory/2108-4-0x0000000005610000-0x00000000056AC000-memory.dmp
memory/2108-3-0x0000000005570000-0x0000000005602000-memory.dmp
memory/2108-2-0x0000000005B20000-0x00000000060C4000-memory.dmp
memory/2108-1-0x0000000000AA0000-0x0000000000B40000-memory.dmp