Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-03-2024 11:42

General

  • Target

    STATEMENT OF ACCOUNT.exe

  • Size

    962KB

  • MD5

    d39da4595ca51a748ac33447965d80e3

  • SHA1

    e7e0ec21e7cb1d67c906169e6e039d4b29c423c7

  • SHA256

    77732e74850050bb6f935945e510d32a0499d820fa1197752df8bd01c66e8210

  • SHA512

    620cf557f657213ff9f52b2939fdd689906f4b634a20210d3a6062802b25e30d3085c3b6bf0336c880fa8deedafc67f4daee2dd999f911d86184bda47d3ba178

  • SSDEEP

    24576:0FsVd+29QFw53L5o3DVUYR35Xc32WBjshPQ:0FsqtFwaFi3JX

Malware Config

Extracted

Family

webmonitor

C2

niiarmah.wm01.to:443

Attributes
  • config_key

    4EcDHH7aWbl50LayUnuRlJWUXiKQWk0O

  • private_key

    yvkn5wM8E

  • url_path

    /recv5.php

Signatures

  • RevcodeRat, WebMonitorRat

    WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.

  • WebMonitor payload 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe
    "C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe
      "C:\Users\Admin\AppData\Local\Temp\STATEMENT OF ACCOUNT.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\H5tMJERy9hTkJoSd.bat" "
        3⤵
          PID:3328
    • 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=1348 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4120

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\H5tMJERy9hTkJoSd.bat

        Filesize

        204B

        MD5

        b7c9988fe552a4fb92f69cf7a3d8441c

        SHA1

        c9a77927afb56cc84312893221db2dbefd16aa3e

        SHA256

        f518aa5c9aa678fff9df589dee3b5b5391227d3d4a5b3c1b284c0b33299d15e9

        SHA512

        1008fd1d669f80cbd48192be913b8a2ec7dcd14a8d05917cdcbd13cb9e2451bc7833cd4339a440e0e7c78be72f3c4566ba3a11f486708f18fe6e83738226b8c7

      • memory/1464-2-0x0000000000AE0000-0x0000000000AE2000-memory.dmp

        Filesize

        8KB

      • memory/1464-1-0x0000000000800000-0x0000000000900000-memory.dmp

        Filesize

        1024KB

      • memory/3096-3-0x0000000000400000-0x00000000004F3000-memory.dmp

        Filesize

        972KB

      • memory/3096-4-0x0000000000400000-0x00000000004F3000-memory.dmp

        Filesize

        972KB

      • memory/3096-5-0x0000000000400000-0x00000000004F3000-memory.dmp

        Filesize

        972KB

      • memory/3096-6-0x0000000000400000-0x00000000004F3000-memory.dmp

        Filesize

        972KB

      • memory/3096-7-0x0000000000400000-0x00000000004F3000-memory.dmp

        Filesize

        972KB

      • memory/3096-11-0x0000000000400000-0x00000000004F3000-memory.dmp

        Filesize

        972KB