Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 19:07

General

  • Target

    invoice.exe

  • Size

    662KB

  • MD5

    7e25fcb83e6c246f1db8539c26379f68

  • SHA1

    9387dd1db20f1d643437ddc90e2f227ce667ab99

  • SHA256

    92f372371d773e499445538a7f978fe16dc03bf772adf1151dc998a7916b284f

  • SHA512

    20f5d204b73021c7b6fb55d8e19b2d2533b214a2f5697019c0af5a60b047f7e8494dfc442ae6f4115d78789223e6080a8e36c5946f73d0b9ebae63c40e903006

  • SSDEEP

    12288:plYifTEb5syskpi7Ar7CiiYN3Q40CfT7VkxSs5sRVbEbYstXM5y:kiI5NsAr7CirN10C7eB5sR2cst8w

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Users\Admin\AppData\Local\Temp\invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
      2⤵
        PID:2256
      • C:\Users\Admin\AppData\Local\Temp\invoice.exe
        "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2340

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2340-10-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2340-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2340-13-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2340-15-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2340-8-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2340-20-0x0000000074610000-0x0000000074CFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2340-7-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2340-6-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2340-22-0x0000000074610000-0x0000000074CFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2340-18-0x0000000074610000-0x0000000074CFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2340-17-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2860-5-0x0000000004FE0000-0x0000000005064000-memory.dmp

      Filesize

      528KB

    • memory/2860-0-0x000000007461E000-0x000000007461F000-memory.dmp

      Filesize

      4KB

    • memory/2860-3-0x0000000000500000-0x000000000051A000-memory.dmp

      Filesize

      104KB

    • memory/2860-2-0x0000000074610000-0x0000000074CFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2860-19-0x0000000074610000-0x0000000074CFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2860-1-0x0000000000A80000-0x0000000000B2C000-memory.dmp

      Filesize

      688KB

    • memory/2860-4-0x0000000000310000-0x0000000000320000-memory.dmp

      Filesize

      64KB