Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
29/06/2026, 16:33
General
- Target bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.exe
- Size 556KB
- Sample260629-t2s19abv4n
- SHA256 bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822
Malware Config
Extracted
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agenttesla
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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
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C:\Users\Admin\AppData\Local\Temp\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.exe"C:\Users\Admin\AppData\Local\Temp\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.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\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.exe"C:\Users\Admin\AppData\Local\Temp\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.exe"C:\Users\Admin\AppData\Local\Temp\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.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\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.exe"C:\Users\Admin\AppData\Local\Temp\bc4b5891b1294dac280e9c24e2f63b8659d5703d28b7ffa459940b266f00b822.exe"3⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
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/2272-12-0x0000000005840000-0x0000000006FC0000-memory.dmp
memory/2272-13-0x0000000074645000-0x0000000074646000-memory.dmp
memory/2360-14-0x00000000017B0000-0x0000000002F30000-memory.dmp
memory/2360-16-0x0000000077DDD000-0x0000000077DDE000-memory.dmp
memory/2360-15-0x0000000077E1F000-0x0000000077E20000-memory.dmp
memory/2360-17-0x0000000077EA5000-0x0000000077EA6000-memory.dmp
memory/2360-18-0x00000000004C0000-0x00000000017A6000-memory.dmp
memory/2360-19-0x00000000004C0000-0x0000000000502000-memory.dmp
memory/2360-20-0x0000000035F00000-0x00000000364BA000-memory.dmp
memory/2360-21-0x00000000365F0000-0x0000000036656000-memory.dmp
memory/2360-22-0x00000000017B0000-0x0000000002F30000-memory.dmp
memory/2360-23-0x00000000370B0000-0x0000000037100000-memory.dmp
memory/2360-24-0x0000000037100000-0x0000000037192000-memory.dmp
memory/2360-25-0x00000000371D0000-0x00000000371DA000-memory.dmp
memory/2360-27-0x0000000077EA5000-0x0000000077EA6000-memory.dmp