Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231201-en
  • resource tags

    arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2023 16:34

General

  • Target

    a73e19f0e16fe269c738fb72db885632.exe

  • Size

    823KB

  • MD5

    a73e19f0e16fe269c738fb72db885632

  • SHA1

    86505bb59e19e4d458f14b84ea2cd4412270399d

  • SHA256

    c74273c928e74f91e1869446598e85ab41d163efa6dac55e45c50e74140f6ccc

  • SHA512

    7047fef24ed425121dcbe530f55ded680c686565ea5646c072313a6a1996c53256f09e75bb3bad5a42e6ebbfcecbb6b5881e5500e32a11b8c2d7ed631107f06d

  • SSDEEP

    24576:GSqn1JhQ8AA6vkIx4W8AHPb41CEjSd8n:Jqn1Px6vQA7USun

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.experthvac.ro
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    -8{jszMOY*Z8(~Za0#jyP%o7VoB.0)kk^)7_

Signatures

  • AgentTesla

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

  • 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 behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a73e19f0e16fe269c738fb72db885632.exe
    "C:\Users\Admin\AppData\Local\Temp\a73e19f0e16fe269c738fb72db885632.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2988
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2572
      • 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:2124

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2124-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2124-27-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2124-29-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2124-24-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2572-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2572-11-0x0000000000090000-0x00000000000C0000-memory.dmp

      Filesize

      192KB

    • memory/2572-10-0x0000000000090000-0x00000000000C0000-memory.dmp

      Filesize

      192KB

    • memory/2572-9-0x0000000000090000-0x00000000000C0000-memory.dmp

      Filesize

      192KB

    • memory/2572-8-0x0000000000090000-0x00000000000C0000-memory.dmp

      Filesize

      192KB

    • memory/2988-7-0x0000000000660000-0x0000000000666000-memory.dmp

      Filesize

      24KB

    • memory/2988-6-0x0000000000840000-0x000000000085A000-memory.dmp

      Filesize

      104KB

    • memory/2988-5-0x0000000004DC0000-0x0000000004E00000-memory.dmp

      Filesize

      256KB

    • memory/2988-0-0x0000000001150000-0x0000000001224000-memory.dmp

      Filesize

      848KB

    • memory/2988-4-0x0000000074110000-0x00000000747FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2988-3-0x0000000000F40000-0x0000000000F84000-memory.dmp

      Filesize

      272KB

    • memory/2988-2-0x0000000004DC0000-0x0000000004E00000-memory.dmp

      Filesize

      256KB

    • memory/2988-1-0x0000000074110000-0x00000000747FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2988-26-0x0000000074110000-0x00000000747FE000-memory.dmp

      Filesize

      6.9MB