Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 14:27

General

  • Target

    dochus20230925.exe

  • Size

    1.0MB

  • MD5

    363044c48c8d035c08cddcdb22bb0838

  • SHA1

    6ae25dd4586629db60429c3c66cac81ee735c9dc

  • SHA256

    7d31211e88bbc31cd128c1b5a3ae9e1dbbb823b449f807e3d3a6669047810dc1

  • SHA512

    c98eff4c05ccd72906c50ea863cece139ea27ef3aba9ed5c19c32338006b092b18176d628345695000a0d4d3ba5a99f9990ff29f1d2ebb716a5e3ea57f85b302

  • SSDEEP

    24576:eRT5oEFwWfz/1sAsSn46qttH6n6MYAUH+5ZxGIAU:eN5EWr/1sZSn46qX5J+5ZxRh

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.product-secured.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    2V8SHFwjad34@@##

Extracted

Family

agenttesla

Credentials

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
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1376

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1376-14-0x0000000006480000-0x00000000064D0000-memory.dmp

    Filesize

    320KB

  • memory/1376-15-0x0000000006570000-0x000000000660C000-memory.dmp

    Filesize

    624KB

  • memory/1376-19-0x0000000006640000-0x000000000664A000-memory.dmp

    Filesize

    40KB

  • memory/1376-18-0x00000000066B0000-0x0000000006742000-memory.dmp

    Filesize

    584KB

  • memory/1376-17-0x0000000004D30000-0x0000000004D40000-memory.dmp

    Filesize

    64KB

  • memory/1376-16-0x0000000074760000-0x0000000074F10000-memory.dmp

    Filesize

    7.7MB

  • memory/1376-10-0x0000000074760000-0x0000000074F10000-memory.dmp

    Filesize

    7.7MB

  • memory/1376-9-0x0000000000770000-0x00000000007B4000-memory.dmp

    Filesize

    272KB

  • memory/1376-11-0x0000000004D30000-0x0000000004D40000-memory.dmp

    Filesize

    64KB

  • memory/1376-12-0x0000000004DB0000-0x0000000004E16000-memory.dmp

    Filesize

    408KB

  • memory/2944-1-0x0000000000D00000-0x0000000000E0A000-memory.dmp

    Filesize

    1.0MB

  • memory/2944-13-0x0000000074760000-0x0000000074F10000-memory.dmp

    Filesize

    7.7MB

  • memory/2944-0-0x0000000074760000-0x0000000074F10000-memory.dmp

    Filesize

    7.7MB

  • memory/2944-6-0x0000000005A70000-0x0000000005B8C000-memory.dmp

    Filesize

    1.1MB

  • memory/2944-5-0x00000000057F0000-0x0000000005800000-memory.dmp

    Filesize

    64KB

  • memory/2944-4-0x0000000074760000-0x0000000074F10000-memory.dmp

    Filesize

    7.7MB

  • memory/2944-3-0x00000000057F0000-0x0000000005800000-memory.dmp

    Filesize

    64KB

  • memory/2944-2-0x0000000005DB0000-0x0000000006354000-memory.dmp

    Filesize

    5.6MB