Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    13-05-2024 11:17

General

  • Target

    z1purchaseorderSP336562.scr.exe

  • Size

    295KB

  • MD5

    7a80c3d30c2ced2954f090ae8d5a166d

  • SHA1

    e97612b4c931d151ed2c7d5718fce8fdf07fa800

  • SHA256

    0e30fb9a51c158c0d9a3d73562e99aff6e9ed61ab56ab18b5288d64c1945e9ae

  • SHA512

    d47c086080107d0d091f6c94c158fcd9b093a7218031311944f3a555013f762c6b6fc40321fed929157d11d51adf7f7ec00b69e3850e5a9eff1ca9515fa7afc5

  • SSDEEP

    6144:iNfZ1360vjwbTdQG8Aq3bIMdbgbwVEZ0t6d4aMcK:CD60v8XdQG8Aq3bIMdMxdZMcK

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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\z1purchaseorderSP336562.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\z1purchaseorderSP336562.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2040-0-0x00000000740EE000-0x00000000740EF000-memory.dmp

    Filesize

    4KB

  • memory/2040-1-0x0000000000E20000-0x0000000000E6A000-memory.dmp

    Filesize

    296KB

  • memory/2040-2-0x0000000000AB0000-0x0000000000AF8000-memory.dmp

    Filesize

    288KB

  • memory/2040-3-0x00000000740E0000-0x00000000747CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2040-15-0x00000000740E0000-0x00000000747CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-7-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2528-5-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2528-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2528-12-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2528-14-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2528-11-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2528-6-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2528-4-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB