Analysis
- max time kernel
141s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
04/07/2024, 13:00
General
- Target Order 0003994887588960600000.bat.exe
- Size 366KB
- Sample240704-p8nb5axbrl
- SHA256 c31957e7f7c20119847fc9fc963ff30b67082f0cbb4389d89be6e19762111a83
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.concaribe.com
-
Port
21
-
Username
-
Password
ro}UWgz#!38E
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- 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 2 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\Order 0003994887588960600000.bat.exe"C:\Users\Admin\AppData\Local\Temp\Order 0003994887588960600000.bat.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\Order 0003994887588960600000.bat.exe"C:\Users\Admin\AppData\Local\Temp\Order 0003994887588960600000.bat.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
App.ini
System.dll
memory/2272-29-0x00000000048E0000-0x00000000079DC000-memory.dmp
memory/2272-23-0x0000000077741000-0x0000000077861000-memory.dmp
memory/2272-24-0x00000000745A5000-0x00000000745A6000-memory.dmp
memory/2272-22-0x00000000048E0000-0x00000000079DC000-memory.dmp
memory/3324-25-0x00000000016D0000-0x00000000047CC000-memory.dmp
memory/3324-26-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/3324-27-0x0000000000470000-0x00000000004B2000-memory.dmp
memory/3324-28-0x00000000370E0000-0x0000000037684000-memory.dmp
memory/3324-30-0x0000000036FE0000-0x0000000037046000-memory.dmp
memory/3324-32-0x0000000038000000-0x0000000038050000-memory.dmp
memory/3324-33-0x0000000038050000-0x00000000380E2000-memory.dmp
memory/3324-34-0x0000000038120000-0x000000003812A000-memory.dmp
memory/3324-36-0x00000000016D0000-0x00000000047CC000-memory.dmp