Analysis

  • max time kernel
    156s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-04-2024 15:28

General

  • Target

    42262337e2e62de9897dfc8326f5fe2c581c9e510963c00bdcce2a966100f746.exe

  • Size

    204KB

  • MD5

    a52b159a4e10ac096d13ff67ed338d20

  • SHA1

    6a8ef03182ff428b59123d0cf697079f327aaafa

  • SHA256

    42262337e2e62de9897dfc8326f5fe2c581c9e510963c00bdcce2a966100f746

  • SHA512

    f8c7978b663b0048ed942f023c6c2c32645ac233983cca391b98e1c8b1f728b5aceeb6d92bc5972f1eebe9149561dcc2ff9ef1a7f1c2fa97009f6ae101c816bf

  • SSDEEP

    3072:GmrW8Br0tQ9nLHbB9W0c1TqECzR/mkSYGrl9ymgYUWVME:h6e4QxL7B9W0c1RCzR/fSmluv

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42262337e2e62de9897dfc8326f5fe2c581c9e510963c00bdcce2a966100f746.exe
    "C:\Users\Admin\AppData\Local\Temp\42262337e2e62de9897dfc8326f5fe2c581c9e510963c00bdcce2a966100f746.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Users\Admin\xaaiji.exe
      "C:\Users\Admin\xaaiji.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3780
  • 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=4240 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1920

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\xaaiji.exe

      Filesize

      204KB

      MD5

      d4b89ffb708ce89abcebfeda3583a464

      SHA1

      6d3848f137c4f256316cdfd549b080a9090722f6

      SHA256

      c5a98c353f46dfd8a34fc64363963919eb728fcbc0c8d80e26457eed4dee20fc

      SHA512

      135aaf47fcabcb18e4f9d22c4f19bc425c1e148c0b33b1bffe55036ec7a7e639e04548d50e099362f0d414d528be4aa73621083cfb7681bd22afce737ca8c666