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Analysis

  • max time kernel
    142s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 17:12

General

  • Target

    Draft Sales contract.exe

  • Size

    664KB

  • MD5

    e7d5b3af9cebadf634461574940da0a7

  • SHA1

    1b70ed9407cbe02fbb2ea7790caba4bae4c98a29

  • SHA256

    519fcde66b1b9c807cf89568d162c89103ee8065ba1009086881bbbefd69e4c9

  • SHA512

    f7bb4a4a13832a6c665229aaf9fafd4cb563f794b04ede6be44713d30d13a5fe4ff77ddc33f0e68770fe8ff59c7b2372c3f1afe18de63c78159ac29aebf3749a

  • SSDEEP

    12288:I33nFyHgRMph6guOtDqB/PkKhcRdK6auXh35TPy4l52IQko3MN+Evy:IlyHsIh6fOtDqdfYh39lS6or

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.techwiser.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tech@#$121

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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Draft Sales contract.exe
    "C:\Users\Admin\AppData\Local\Temp\Draft Sales contract.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Local\Temp\Draft Sales contract.exe
      "C:\Users\Admin\AppData\Local\Temp\Draft Sales contract.exe"
      2⤵
        PID:3404
      • C:\Users\Admin\AppData\Local\Temp\Draft Sales contract.exe
        "C:\Users\Admin\AppData\Local\Temp\Draft Sales contract.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1808
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4660

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1808-12-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/1808-20-0x0000000006830000-0x000000000683A000-memory.dmp

        Filesize

        40KB

      • memory/1808-19-0x0000000006790000-0x00000000067E0000-memory.dmp

        Filesize

        320KB

      • memory/1808-18-0x0000000074AD0000-0x0000000075280000-memory.dmp

        Filesize

        7.7MB

      • memory/1808-16-0x0000000004FB0000-0x0000000005016000-memory.dmp

        Filesize

        408KB

      • memory/1808-13-0x0000000074AD0000-0x0000000075280000-memory.dmp

        Filesize

        7.7MB

      • memory/2696-5-0x00000000055E0000-0x00000000055F8000-memory.dmp

        Filesize

        96KB

      • memory/2696-0-0x0000000074AD0000-0x0000000075280000-memory.dmp

        Filesize

        7.7MB

      • memory/2696-8-0x00000000050F0000-0x0000000005100000-memory.dmp

        Filesize

        64KB

      • memory/2696-9-0x000000000A1B0000-0x000000000A232000-memory.dmp

        Filesize

        520KB

      • memory/2696-10-0x000000000D2D0000-0x000000000D36C000-memory.dmp

        Filesize

        624KB

      • memory/2696-11-0x0000000074AD0000-0x0000000075280000-memory.dmp

        Filesize

        7.7MB

      • memory/2696-6-0x0000000005610000-0x000000000561E000-memory.dmp

        Filesize

        56KB

      • memory/2696-7-0x0000000005630000-0x0000000005644000-memory.dmp

        Filesize

        80KB

      • memory/2696-15-0x00000000050F0000-0x0000000005100000-memory.dmp

        Filesize

        64KB

      • memory/2696-4-0x0000000005100000-0x0000000005192000-memory.dmp

        Filesize

        584KB

      • memory/2696-17-0x0000000074AD0000-0x0000000075280000-memory.dmp

        Filesize

        7.7MB

      • memory/2696-3-0x00000000056B0000-0x0000000005C54000-memory.dmp

        Filesize

        5.6MB

      • memory/2696-2-0x00000000050F0000-0x0000000005100000-memory.dmp

        Filesize

        64KB

      • memory/2696-1-0x0000000000490000-0x0000000000538000-memory.dmp

        Filesize

        672KB