Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03/04/2024, 12:14

General

  • Target

    INVOICE-BUO2300000.exe

  • Size

    774KB

  • MD5

    aca3eeaff7c67d96a626259d3d73a20f

  • SHA1

    cfe7c18b3c77c968e0c4dde45072b3771dfe9ad0

  • SHA256

    da6f3f1f642c13d2b7bf4c86e2686c5e1b606dbe0838423998c15742940545e9

  • SHA512

    c406f0d0be44f329237040f163988b82aa83f94aad6fb88500ac4d54fd6f4739031ed7954a0b7ef4d07df488730e20f9ddeebbb44725e16180f97ee08e3e4b4f

  • SSDEEP

    12288:Yefdsbuw0Wa95Em6E3/+Bpglgh+zIGznQNVZCJ/dzpTt+bwSKu:qU3B/Bo+z/+VO

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE-BUO2300000.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE-BUO2300000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Users\Admin\AppData\Local\Temp\INVOICE-BUO2300000.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE-BUO2300000.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2504

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1912-17-0x0000000074900000-0x0000000074FEE000-memory.dmp

          Filesize

          6.9MB

        • memory/1912-1-0x0000000074900000-0x0000000074FEE000-memory.dmp

          Filesize

          6.9MB

        • memory/1912-2-0x0000000007250000-0x0000000007290000-memory.dmp

          Filesize

          256KB

        • memory/1912-3-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1912-4-0x0000000000540000-0x000000000054C000-memory.dmp

          Filesize

          48KB

        • memory/1912-5-0x0000000007290000-0x0000000007312000-memory.dmp

          Filesize

          520KB

        • memory/1912-0-0x0000000001260000-0x0000000001326000-memory.dmp

          Filesize

          792KB

        • memory/2504-16-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2504-7-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2504-8-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2504-9-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2504-18-0x0000000074900000-0x0000000074FEE000-memory.dmp

          Filesize

          6.9MB

        • memory/2504-6-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2504-14-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2504-12-0x0000000000400000-0x0000000000440000-memory.dmp

          Filesize

          256KB

        • memory/2504-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2504-19-0x0000000004A10000-0x0000000004A50000-memory.dmp

          Filesize

          256KB

        • memory/2504-20-0x0000000074900000-0x0000000074FEE000-memory.dmp

          Filesize

          6.9MB