Analysis

  • max time kernel
    154s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 10:02

General

  • Target

    Payment PDF.exe

  • Size

    458KB

  • MD5

    310a9e5f4905679981f172b9c1632574

  • SHA1

    8e88a74b01f802034d9651e7ee671d7d715d73b9

  • SHA256

    662d7424fe5c983f0c5c245536584c97f41de3ae23c1783d2b67d3586683b767

  • SHA512

    e2529df5ee9f96cf81f949a8b7ffd7b36995f66f0cb348519fa3c4ab3d6321961e165b12061e654002696f987066d70be5ea77716af77d592cac5e75b91257ae

  • SSDEEP

    6144:hJLnqpisvXtwxtYjWPLxM37kZSZB9WGAoTYTUYXvsHUIbqzynRfWCnulRLxtEu/a:hVqhvOGqswMxWG9kUPq+ROUuNuu/M

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    charlyparkerparker@yandex.ru
  • Password:
    Ablegod123456

Signatures

  • AgentTesla

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

  • AgentTesla payload 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 WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4440
    • C:\Users\Admin\AppData\Local\Temp\Payment PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment PDF.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5060
  • 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=4160 --field-trial-handle=2588,i,14229658658073991926,6938034815163866135,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2540

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Payment PDF.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/4440-10-0x000000000A1E0000-0x000000000A240000-memory.dmp
      Filesize

      384KB

    • memory/4440-14-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4440-3-0x0000000007730000-0x00000000077C2000-memory.dmp
      Filesize

      584KB

    • memory/4440-4-0x0000000007860000-0x0000000007870000-memory.dmp
      Filesize

      64KB

    • memory/4440-5-0x00000000077F0000-0x00000000077FA000-memory.dmp
      Filesize

      40KB

    • memory/4440-6-0x00000000079D0000-0x00000000079DE000-memory.dmp
      Filesize

      56KB

    • memory/4440-7-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4440-9-0x000000000A280000-0x000000000A31C000-memory.dmp
      Filesize

      624KB

    • memory/4440-0-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4440-2-0x0000000007C40000-0x00000000081E4000-memory.dmp
      Filesize

      5.6MB

    • memory/4440-8-0x0000000007860000-0x0000000007870000-memory.dmp
      Filesize

      64KB

    • memory/4440-1-0x0000000000800000-0x0000000000878000-memory.dmp
      Filesize

      480KB

    • memory/5060-19-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/5060-15-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/5060-16-0x00000000056A0000-0x00000000056B0000-memory.dmp
      Filesize

      64KB

    • memory/5060-17-0x0000000005670000-0x0000000005688000-memory.dmp
      Filesize

      96KB

    • memory/5060-18-0x0000000006330000-0x0000000006396000-memory.dmp
      Filesize

      408KB

    • memory/5060-21-0x0000000006A30000-0x0000000006A80000-memory.dmp
      Filesize

      320KB

    • memory/5060-20-0x00000000056A0000-0x00000000056B0000-memory.dmp
      Filesize

      64KB

    • memory/5060-11-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB