Analysis
- max time kernel
148s - max time network
126s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
28/07/2026, 00:26
General
- Target FACTURA-7654345678760000023.exe
- Size 902KB
- Sample260728-aramdaeb87
- SHA256 4452f24dca9c5b6e385c5b5937520b3c4a814aa0aba0a186e08d460c9caeda94
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
servidor3398.tl.controladordns.com
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Port
587
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Username
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Password
6LHg9N1vxx1900
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Email to
Signatures
- Family: AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Family: Darktortilla
DarkTortilla is a highly configurable .NET based crypter that delivers a wide range of information stealers.
- Detects Darktortilla crypter. 1 IoCs
- System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs
Abuse InstallUtil to proxy execution of malicious code.
- Executes dropped EXE 2 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.
- Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 3 IoCs
- Suspicious behavior: EnumeratesProcesses 37 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\FACTURA-7654345678760000023.exe"C:\Users\Admin\AppData\Local\Temp\FACTURA-7654345678760000023.exe"1⤵
- System Binary Proxy Execution: InstallUtil
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd" /c ping 127.0.0.1 -n 6 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "987654567" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 63⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "987654567" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exe"cmd" /c ping 127.0.0.1 -n 12 > nul && copy "C:\Users\Admin\AppData\Local\Temp\FACTURA-7654345678760000023.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe" && ping 127.0.0.1 -n 12 > nul && "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 123⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 123⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\ouytrtyuio.exe"3⤵
- System Binary Proxy Execution: InstallUtil
- Executes dropped EXE
- Suspicious use of SetThreadContext
- 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\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"4⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
InstallUtil.exe
ouytrtyuio.exe
memory/2972-18-0x0000000008010000-0x0000000008032000-memory.dmp
memory/2972-14-0x0000000074430000-0x0000000074BEC000-memory.dmp
memory/2972-21-0x0000000074430000-0x0000000074BEC000-memory.dmp
memory/2972-17-0x000000000D2D0000-0x000000000D62B000-memory.dmp
memory/2972-16-0x0000000007DE0000-0x0000000007DE6000-memory.dmp
memory/2972-15-0x0000000007780000-0x000000000779A000-memory.dmp
memory/2972-13-0x0000000074430000-0x0000000074BEC000-memory.dmp
memory/3664-10-0x0000000074460000-0x0000000074C1C000-memory.dmp
memory/3664-6-0x0000000074472000-0x0000000074473000-memory.dmp
memory/3664-11-0x0000000074460000-0x0000000074C1C000-memory.dmp
memory/3664-3-0x0000000004EF0000-0x0000000004F82000-memory.dmp
memory/3664-2-0x00000000055C0000-0x0000000005B7A000-memory.dmp
memory/3664-9-0x0000000006C20000-0x0000000006C2A000-memory.dmp
memory/3664-7-0x0000000074460000-0x0000000074C1C000-memory.dmp
memory/3664-8-0x00000000068C0000-0x00000000068F0000-memory.dmp
memory/3664-5-0x0000000074460000-0x0000000074C1C000-memory.dmp
memory/3664-0-0x0000000074472000-0x0000000074473000-memory.dmp
memory/3664-4-0x0000000005000000-0x000000000509C000-memory.dmp
memory/3664-1-0x0000000000410000-0x00000000004F8000-memory.dmp
memory/5540-19-0x0000000000400000-0x000000000043A000-memory.dmp
memory/5540-22-0x0000000005550000-0x0000000005569000-memory.dmp
memory/5540-23-0x00000000061E0000-0x0000000006246000-memory.dmp
memory/5540-24-0x00000000069F0000-0x0000000006A40000-memory.dmp