Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
04/06/2024, 01:02
General
- Target 1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe
- Size 681KB
- Sample240604-bd3lnsff5x
- SHA256 1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://cash4cars.nz
-
Port
21
-
Username
-
Password
-[([pqM~nGA4
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects executables packed with SmartAssembly 1 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe"C:\Users\Admin\AppData\Local\Temp\1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe"C:\Users\Admin\AppData\Local\Temp\1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
1191d3f484d35c7e4d42ac7bcdd2227930f848383873d914e8010bfe637e0122.exe.log
memory/3048-11-0x0000000000400000-0x0000000000440000-memory.dmp
memory/3048-19-0x0000000075360000-0x0000000075B10000-memory.dmp
memory/3048-18-0x00000000066C0000-0x0000000006710000-memory.dmp
memory/3048-17-0x0000000005050000-0x00000000050B6000-memory.dmp
memory/3048-16-0x0000000075360000-0x0000000075B10000-memory.dmp
memory/3048-14-0x0000000075360000-0x0000000075B10000-memory.dmp
memory/4872-4-0x0000000005140000-0x000000000514A000-memory.dmp
memory/4872-8-0x00000000054E0000-0x00000000054F0000-memory.dmp
memory/4872-9-0x00000000064D0000-0x00000000064E6000-memory.dmp
memory/4872-10-0x0000000007CB0000-0x0000000007D32000-memory.dmp
memory/4872-7-0x0000000005310000-0x000000000532E000-memory.dmp
memory/4872-6-0x0000000075360000-0x0000000075B10000-memory.dmp
memory/4872-5-0x0000000005430000-0x00000000054CC000-memory.dmp
memory/4872-15-0x0000000075360000-0x0000000075B10000-memory.dmp
memory/4872-0-0x000000007536E000-0x000000007536F000-memory.dmp
memory/4872-3-0x0000000005150000-0x00000000051E2000-memory.dmp
memory/4872-2-0x0000000005820000-0x0000000005DC4000-memory.dmp
memory/4872-1-0x00000000006A0000-0x0000000000750000-memory.dmp