Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    06/02/2025, 11:41

General

  • Target
    mkpqinNsdyZVA15.exe
  • Size 835KB
  • Sample250206-nthyestnbx
  • SHA256 3f700fd41c6cca501d50cc2f62afd8e0d951efc1a918aa65ab3e84ee563ff1d6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Agenttesla family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • Suspicious use of SetThreadContext 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 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mkpqinNsdyZVA15.exe
    "C:\Users\Admin\AppData\Local\Temp\mkpqinNsdyZVA15.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wSssDImNr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2832
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wSssDImNr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA19.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2920
    • C:\Users\Admin\AppData\Local\Temp\mkpqinNsdyZVA15.exe
      "C:\Users\Admin\AppData\Local\Temp\mkpqinNsdyZVA15.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2928

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpDA19.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpDA19.tmp
        • Size 1KB
        • SHA256 596f59237403b8ccb2ded53b5f2b4331f2ed49765db78bb67415bd79188bc845
        • MD5 SHA1 SHA512

        memory/1948-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

        memory/1948-30-0x0000000073FF0000-0x00000000746DE000-memory.dmp

        memory/1948-3-0x0000000000500000-0x0000000000518000-memory.dmp

        memory/1948-1-0x0000000001170000-0x0000000001248000-memory.dmp

        memory/1948-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

        memory/1948-7-0x0000000000540000-0x0000000000554000-memory.dmp

        memory/1948-6-0x0000000000530000-0x000000000053E000-memory.dmp

        memory/1948-8-0x0000000005070000-0x00000000050FC000-memory.dmp

        memory/1948-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

        memory/1948-9-0x0000000000950000-0x00000000009D2000-memory.dmp

        memory/1948-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

        memory/2928-29-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2928-27-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2928-26-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2928-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2928-23-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2928-21-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2928-19-0x0000000000400000-0x0000000000440000-memory.dmp

        memory/2928-17-0x0000000000400000-0x0000000000440000-memory.dmp