Analysis
- max time kernel
141s - max time network
129s - platform
windows7_x64 - resource
win7-20240611-en - resource tags
- submitted
28/06/2024, 01:12
General
- Target 27062024-322copy.exe
- Size 873KB
- Sample240628-bkpy6avglp
- SHA256 76f267de8fd5fa4744fb8294ee9a4765afeba03b36244527feca60a32df155af
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://mail.hearing-vision.com
-
Port
21
-
Username
-
Password
LILKOOLL14!
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
- Drops file in Windows directory 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 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\27062024-322copy.exe"C:\Users\Admin\AppData\Local\Temp\27062024-322copy.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\27062024-322copy.exe"C:\Users\Admin\AppData\Local\Temp\27062024-322copy.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/1656-25-0x0000000004020000-0x0000000005A94000-memory.dmp
memory/1656-26-0x0000000077B81000-0x0000000077C82000-memory.dmp
memory/1656-27-0x0000000077B80000-0x0000000077D29000-memory.dmp
memory/1656-30-0x0000000004020000-0x0000000005A94000-memory.dmp
memory/2644-28-0x0000000077B80000-0x0000000077D29000-memory.dmp
memory/2644-29-0x00000000004A0000-0x0000000001502000-memory.dmp
memory/2644-31-0x00000000004A0000-0x00000000004E2000-memory.dmp
memory/2644-34-0x0000000077B80000-0x0000000077D29000-memory.dmp