Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
04/06/2024, 02:05
General
- Target e20763322c5a1b22e67eccd63c3ab1dc802cabafbad02400b52d95caa461e074.exe
- Size 377KB
- Sample240604-ch5ghaac82
- SHA256 e20763322c5a1b22e67eccd63c3ab1dc802cabafbad02400b52d95caa461e074
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.stpindo.co.id
-
Port
21
-
Username
-
Password
boygirl123456
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Detect packed .NET executables. Mostly AgentTeslaV4. 2 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
- Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 2 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 2 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 2 IoCs
- Loads dropped DLL 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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e20763322c5a1b22e67eccd63c3ab1dc802cabafbad02400b52d95caa461e074.exe"C:\Users\Admin\AppData\Local\Temp\e20763322c5a1b22e67eccd63c3ab1dc802cabafbad02400b52d95caa461e074.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e20763322c5a1b22e67eccd63c3ab1dc802cabafbad02400b52d95caa461e074.exe"C:\Users\Admin\AppData\Local\Temp\e20763322c5a1b22e67eccd63c3ab1dc802cabafbad02400b52d95caa461e074.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/2540-21-0x0000000004A00000-0x0000000006ABA000-memory.dmp
memory/2540-22-0x0000000077521000-0x0000000077641000-memory.dmp
memory/2540-23-0x0000000074174000-0x0000000074175000-memory.dmp
memory/2540-27-0x0000000004A00000-0x0000000006ABA000-memory.dmp
memory/4980-26-0x0000000000470000-0x00000000004B2000-memory.dmp
memory/4980-25-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/4980-24-0x00000000016D0000-0x000000000378A000-memory.dmp
memory/4980-28-0x0000000036100000-0x00000000366A4000-memory.dmp
memory/4980-29-0x0000000036080000-0x00000000360E6000-memory.dmp
memory/4980-30-0x0000000036E70000-0x0000000036EC0000-memory.dmp
memory/4980-31-0x0000000036EC0000-0x0000000036F52000-memory.dmp
memory/4980-32-0x0000000036F90000-0x0000000036F9A000-memory.dmp
memory/4980-35-0x00000000016D0000-0x000000000378A000-memory.dmp