Analysis
- max time kernel
149s - max time network
143s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
30/04/2026, 11:43
General
- Target Po90596934T9TUTJTT.exe
- Size 534KB
- Sample260430-nvsh9adz21
- SHA256 7d61c99238da9f8ebf30ad4942027349aa32de6fbc01dcced458faf7464e2eea
Malware Config
Extracted
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agenttesla
-
Protocol
ftp
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Host
ftp://ftp.holzbrenzii.com
-
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 2 IoCs
- 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.
- 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
- 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
Processes
-
C:\Users\Admin\AppData\Local\Temp\Po90596934T9TUTJTT.exe"C:\Users\Admin\AppData\Local\Temp\Po90596934T9TUTJTT.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\Po90596934T9TUTJTT.exe"C:\Users\Admin\AppData\Local\Temp\Po90596934T9TUTJTT.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Po90596934T9TUTJTT.exe"C:\Users\Admin\AppData\Local\Temp\Po90596934T9TUTJTT.exe"2⤵
- 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
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C:\Users\Admin\AppData\Local\Temp\Po90596934T9TUTJTT.exe"C:\Users\Admin\AppData\Local\Temp\Po90596934T9TUTJTT.exe"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
System.dll
memory/2400-23-0x0000000005860000-0x00000000077C1000-memory.dmp
memory/2400-24-0x0000000073DA5000-0x0000000073DA6000-memory.dmp
memory/2400-25-0x0000000002670000-0x0000000002AAB000-memory.dmp
memory/2400-26-0x0000000005860000-0x00000000077C1000-memory.dmp
memory/6120-27-0x00000000007F0000-0x0000000001B07000-memory.dmp
memory/6120-28-0x00000000007F0000-0x0000000000832000-memory.dmp
memory/6120-29-0x0000000036660000-0x0000000036C06000-memory.dmp
memory/6120-30-0x0000000036490000-0x00000000364F6000-memory.dmp
memory/6120-31-0x0000000037200000-0x0000000037292000-memory.dmp
memory/6120-32-0x00000000372F0000-0x0000000037340000-memory.dmp
memory/6120-33-0x0000000037370000-0x000000003737A000-memory.dmp
memory/6120-35-0x0000000001B10000-0x0000000003A71000-memory.dmp