Analysis
- max time kernel
149s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
07/06/2024, 01:04
General
- Target 093c90c64583971fdc872ff1e9f5dfb7ce5be3966410c47afdf0d5d0ca3e395e.exe
- Size 385KB
- Sample240607-beydcaeh3s
- SHA256 093c90c64583971fdc872ff1e9f5dfb7ce5be3966410c47afdf0d5d0ca3e395e
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot7065054355:AAGvKozyIFTruitkksV45RlLGqriLqyMLhs/
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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 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
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\093c90c64583971fdc872ff1e9f5dfb7ce5be3966410c47afdf0d5d0ca3e395e.exe"C:\Users\Admin\AppData\Local\Temp\093c90c64583971fdc872ff1e9f5dfb7ce5be3966410c47afdf0d5d0ca3e395e.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath @('C:\','D:\','F:\')2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_hp2iee21.ukj.ps1
memory/4000-17-0x00007FFF39170000-0x00007FFF39C31000-memory.dmp
memory/4000-2-0x000001DF67A10000-0x000001DF67A32000-memory.dmp
memory/4000-12-0x00007FFF39170000-0x00007FFF39C31000-memory.dmp
memory/4000-13-0x00007FFF39170000-0x00007FFF39C31000-memory.dmp
memory/4000-16-0x00007FFF39170000-0x00007FFF39C31000-memory.dmp
memory/4612-0-0x00007FFF39173000-0x00007FFF39175000-memory.dmp
memory/4612-1-0x00000000004D0000-0x0000000000536000-memory.dmp
memory/4612-20-0x00007FFF39170000-0x00007FFF39C31000-memory.dmp
memory/4612-19-0x00000000027C0000-0x0000000002802000-memory.dmp
memory/4612-21-0x000000001BD90000-0x000000001BDE0000-memory.dmp
memory/4612-22-0x00007FFF39173000-0x00007FFF39175000-memory.dmp
memory/4612-23-0x00007FFF39170000-0x00007FFF39C31000-memory.dmp