Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 23:14

General

  • Target

    CI&PL-AWB-HEL-21-324-1.exe

  • Size

    444KB

  • MD5

    e8ae8fe8fa5d7c83e3ebe26389eae1f8

  • SHA1

    6fc0dd32bb26b5b85e4ae4b81a86bb80a1fd414b

  • SHA256

    92175af7571463e2114e8c8cd62de70ce9dd6757b67c77a051b0f6f2e52e30fe

  • SHA512

    f31fc6d145078569b4932178c6f62bcff3f96da5aed2853a8eb5d5590ceb0c6d30fc6293ac4a75c4207f218dcbba8840035e5c0524d23ee98fed5b01450b5a42

  • SSDEEP

    6144:WQGLpbDaj4MJF5Z6saGA33vNd+kVccYt+T0N2gfk/dP+rFXYbaJXS7zmKr0Y:995IsJA3/NBTs+Qdf2+q6UrR

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.prinutrition.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    forrest

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 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\CI&PL-AWB-HEL-21-324-1.exe
    "C:\Users\Admin\AppData\Local\Temp\CI&PL-AWB-HEL-21-324-1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Users\Admin\AppData\Local\Temp\CI&PL-AWB-HEL-21-324-1.exe
      "C:\Users\Admin\AppData\Local\Temp\CI&PL-AWB-HEL-21-324-1.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4004
  • 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=1780 --field-trial-handle=2000,i,9877262470271371196,11878025205711850266,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4748

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\CI&PL-AWB-HEL-21-324-1.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/3100-10-0x0000000006790000-0x00000000067F0000-memory.dmp

      Filesize

      384KB

    • memory/3100-14-0x0000000074DD0000-0x0000000075580000-memory.dmp

      Filesize

      7.7MB

    • memory/3100-3-0x00000000050F0000-0x0000000005182000-memory.dmp

      Filesize

      584KB

    • memory/3100-4-0x0000000005080000-0x0000000005090000-memory.dmp

      Filesize

      64KB

    • memory/3100-5-0x00000000050C0000-0x00000000050CA000-memory.dmp

      Filesize

      40KB

    • memory/3100-6-0x0000000006830000-0x00000000068CC000-memory.dmp

      Filesize

      624KB

    • memory/3100-7-0x0000000005710000-0x000000000571E000-memory.dmp

      Filesize

      56KB

    • memory/3100-9-0x0000000005080000-0x0000000005090000-memory.dmp

      Filesize

      64KB

    • memory/3100-1-0x0000000074DD0000-0x0000000075580000-memory.dmp

      Filesize

      7.7MB

    • memory/3100-2-0x0000000005770000-0x0000000005D14000-memory.dmp

      Filesize

      5.6MB

    • memory/3100-8-0x0000000074DD0000-0x0000000075580000-memory.dmp

      Filesize

      7.7MB

    • memory/3100-0-0x00000000007C0000-0x0000000000836000-memory.dmp

      Filesize

      472KB

    • memory/4004-19-0x0000000074DD0000-0x0000000075580000-memory.dmp

      Filesize

      7.7MB

    • memory/4004-16-0x0000000005800000-0x0000000005810000-memory.dmp

      Filesize

      64KB

    • memory/4004-15-0x0000000074DD0000-0x0000000075580000-memory.dmp

      Filesize

      7.7MB

    • memory/4004-17-0x0000000005B80000-0x0000000005B98000-memory.dmp

      Filesize

      96KB

    • memory/4004-18-0x0000000006440000-0x00000000064A6000-memory.dmp

      Filesize

      408KB

    • memory/4004-22-0x00000000069E0000-0x0000000006A30000-memory.dmp

      Filesize

      320KB

    • memory/4004-20-0x0000000005800000-0x0000000005810000-memory.dmp

      Filesize

      64KB

    • memory/4004-11-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB