Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    21-05-2024 03:45

General

  • Target

    VAKIF BANKASI transferi.xlsx.exe

  • Size

    1.3MB

  • MD5

    8cfaea18edcfaa6d07b767f536dd49b8

  • SHA1

    fb5c9207fe390526d2c7a1a4602cb13e9947400c

  • SHA256

    5b0b5154cfa07104cd8b66125de0a8a027cc34fc8f9f5be253585eaf5b4222f5

  • SHA512

    769d7732517188ab5ed93c5d091ff9be85e16a1f9a36e4cbb67f05e8d6e733d8723f487496c5d405ac6f19cad8737b72d54dae83c6764e944ee435562f98bc9e

  • SSDEEP

    24576:Mk3r2BvMMMU/tHSk4RaH6s5KvgpLOfi0uOULYxp9v+ocVhOvrgXRwzxam:7y9Mj9opLGiJYxvv+omh6gXR+4m

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.svetigeorgije.co.rs
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    4c5H&b2whkD9

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VAKIF BANKASI transferi.xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\VAKIF BANKASI transferi.xlsx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2676
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1708 -s 628
      2⤵
        PID:2636

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1708-0-0x000007FEF5A73000-0x000007FEF5A74000-memory.dmp

      Filesize

      4KB

    • memory/1708-1-0x0000000000140000-0x0000000000150000-memory.dmp

      Filesize

      64KB

    • memory/1708-2-0x000007FEF5A70000-0x000007FEF645C000-memory.dmp

      Filesize

      9.9MB

    • memory/1708-3-0x000007FEF5A70000-0x000007FEF645C000-memory.dmp

      Filesize

      9.9MB

    • memory/1708-4-0x000007FEF5A70000-0x000007FEF645C000-memory.dmp

      Filesize

      9.9MB

    • memory/1708-5-0x000000001AD50000-0x000000001ADD2000-memory.dmp

      Filesize

      520KB

    • memory/1708-21-0x000007FEF5A70000-0x000007FEF645C000-memory.dmp

      Filesize

      9.9MB

    • memory/1708-20-0x000007FEF5A73000-0x000007FEF5A74000-memory.dmp

      Filesize

      4KB

    • memory/2676-12-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2676-10-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2676-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2676-19-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2676-17-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2676-15-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2676-8-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2676-6-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB