Analysis
- max time kernel
148s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
02/06/2026, 18:09
General
- Target INVOICE-6353535253535.exe
- Size 608KB
- Sample260602-wrt7nsds9k
- SHA256 09ef2299abf773af4aacc8024ea8227e5c8777a2d7498c6d65f72dd52ce816a9
Malware Config
Extracted
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agenttesla
-
Protocol
ftp
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Host
ftp://ftp.holzbrenzii.com
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Port
21
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Username
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Password
boygirl123456
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Family: 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
- 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
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- outlook_office_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
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C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE-6353535253535.exe"3⤵
-
-
Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/1936-10-0x00000000054B0000-0x0000000007D11000-memory.dmp
memory/1936-11-0x0000000010004000-0x0000000010005000-memory.dmp
memory/1936-12-0x00000000054B0000-0x0000000007D11000-memory.dmp
memory/4128-13-0x0000000001790000-0x0000000003FF1000-memory.dmp
memory/4128-14-0x0000000000470000-0x0000000001787000-memory.dmp
memory/4128-15-0x0000000000470000-0x00000000004B2000-memory.dmp
memory/4128-16-0x0000000036A50000-0x0000000036FF6000-memory.dmp
memory/4128-17-0x0000000037000000-0x0000000037066000-memory.dmp
memory/4128-18-0x0000000037920000-0x0000000037970000-memory.dmp
memory/4128-19-0x0000000037970000-0x0000000037A02000-memory.dmp
memory/4128-20-0x0000000037A40000-0x0000000037A4A000-memory.dmp
memory/4128-22-0x0000000001790000-0x0000000003FF1000-memory.dmp