Analysis

  • max time kernel
    1790s
  • max time network
    1800s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-es
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-eslocale:es-esos:windows10-2004-x64systemwindows
  • submitted
    26/06/2024, 02:20

General

  • Target
    $PLUGINSDIR/modern-wizard.bmp
  • Size 150KB
  • Sample240626-css68asakp
  • SHA256 2079f7a3eba60e0d9ee827a7208aa052a71b384873b641de5e299aeb8e733109
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\modern-wizard.bmp
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1572
    • C:\Windows\system32\mspaint.exe
      "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\modern-wizard.bmp"
      2⤵
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4164
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
    1⤵
      PID:2976
    • 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=es --service-sandbox-type=asset_store_service --field-trial-handle=3672,i,10940535337104174733,16904765475691230480,262144 --variations-seed-version --mojo-platform-channel-handle=4328 /prefetch:8
      1⤵
        PID:3564
      • 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=es --service-sandbox-type=asset_store_service --field-trial-handle=4092,i,10940535337104174733,16904765475691230480,262144 --variations-seed-version --mojo-platform-channel-handle=1396 /prefetch:8
        1⤵
          PID:4200

        Network

              MITRE ATT&CK Enterprise v15

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              Downloads