Analysis

  • max time kernel
    92s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 07:36

General

  • Target

    DHLDOCUMENTS27011222.exe

  • Size

    838KB

  • MD5

    58077ced076708815fa29dd0868d99e2

  • SHA1

    f8d7f9c739c8c30efea7ee7e8a05a33319b0dd79

  • SHA256

    e7b95197fb910258fc23e03856af901ad54e0e824a707b5605a275296c85dc40

  • SHA512

    1e99132d9b2ecbadd21d9c81e993ad4741f4fb1f95c62a38b0848b449fec88d147ee0455e23495c4e4f4741f12c08bf14767280b7815e2f768e0ff3ff6c4d6ef

  • SSDEEP

    24576:VC1Gudz+ZoRu+VI1SBllryZcZhaUIgvpjRpY:VTudquRuz1SBbyWaZgxjb

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5702698141:AAH3zArxBJTzE6y3KAwr-22tBuWNisJ3iEg/

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
  • Adds Run key to start application 2 TTPs 1 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe
    "C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe
      "C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe"
      2⤵
        PID:5060
      • C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe
        "C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe"
        2⤵
          PID:1360
        • C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe
          "C:\Users\Admin\AppData\Local\Temp\DHLDOCUMENTS27011222.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:4956

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1360-138-0x0000000000000000-mapping.dmp
      • memory/4444-132-0x0000000000460000-0x0000000000538000-memory.dmp
        Filesize

        864KB

      • memory/4444-133-0x0000000005500000-0x0000000005AA4000-memory.dmp
        Filesize

        5.6MB

      • memory/4444-134-0x0000000004F50000-0x0000000004FE2000-memory.dmp
        Filesize

        584KB

      • memory/4444-135-0x0000000004EC0000-0x0000000004ECA000-memory.dmp
        Filesize

        40KB

      • memory/4444-136-0x0000000008B00000-0x0000000008B9C000-memory.dmp
        Filesize

        624KB

      • memory/4956-139-0x0000000000000000-mapping.dmp
      • memory/4956-140-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/4956-141-0x0000000005D70000-0x0000000005DD6000-memory.dmp
        Filesize

        408KB

      • memory/4956-142-0x00000000071A0000-0x00000000071F0000-memory.dmp
        Filesize

        320KB

      • memory/5060-137-0x0000000000000000-mapping.dmp