Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 07:05

General

  • Target

    4a67c4d108b728eba8ce589844dc6fde.exe

  • Size

    839KB

  • MD5

    4a67c4d108b728eba8ce589844dc6fde

  • SHA1

    b73b519e39ec1170ce7a7463e45da3966c7f5b90

  • SHA256

    7c84afbd1d85d46654f72829812a1f2eb3cee52899e39d7bc54be3a4c8fe45d8

  • SHA512

    b45c804176d611b8f4fc1ba8fdd98442a42780ed276aa93c4c6a0ed54bec03e6f3060fbc18a75cfa1ea2be6ed27aafb7afbf56ea6a718b7f19418c9dc2e41a95

  • SSDEEP

    12288:+cKjmaOffpam/YtdX/VvFXQMiql8M1IJyP5yAXe3HmDtgKZ/nXt7virmWhlGLaQ1:Vg+pB/iN/V3DqSlYHmD

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    hnxqezadblabdsss

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
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a67c4d108b728eba8ce589844dc6fde.exe
    "C:\Users\Admin\AppData\Local\Temp\4a67c4d108b728eba8ce589844dc6fde.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Users\Admin\AppData\Local\Temp\4a67c4d108b728eba8ce589844dc6fde.exe
      "C:\Users\Admin\AppData\Local\Temp\4a67c4d108b728eba8ce589844dc6fde.exe"
      2⤵
        PID:100
      • C:\Users\Admin\AppData\Local\Temp\4a67c4d108b728eba8ce589844dc6fde.exe
        "C:\Users\Admin\AppData\Local\Temp\4a67c4d108b728eba8ce589844dc6fde.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:176

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/100-137-0x0000000000000000-mapping.dmp
    • memory/176-138-0x0000000000000000-mapping.dmp
    • memory/176-139-0x0000000000400000-0x0000000000438000-memory.dmp
      Filesize

      224KB

    • memory/176-140-0x00000000061A0000-0x0000000006206000-memory.dmp
      Filesize

      408KB

    • memory/176-141-0x0000000006FD0000-0x0000000007020000-memory.dmp
      Filesize

      320KB

    • memory/1716-132-0x0000000000150000-0x0000000000228000-memory.dmp
      Filesize

      864KB

    • memory/1716-133-0x00000000051D0000-0x0000000005774000-memory.dmp
      Filesize

      5.6MB

    • memory/1716-134-0x0000000004C20000-0x0000000004CB2000-memory.dmp
      Filesize

      584KB

    • memory/1716-135-0x0000000004BC0000-0x0000000004BCA000-memory.dmp
      Filesize

      40KB

    • memory/1716-136-0x00000000075B0000-0x000000000764C000-memory.dmp
      Filesize

      624KB