Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/04/2024, 04:14

General

  • Target

    e24966ceb01b0b84fa06ff1d701c0a633c1a7805d6822ac537aafc7dbe1d7275.exe

  • Size

    224KB

  • MD5

    57e3a3a300f99ad87076de6975a04261

  • SHA1

    f707f6cb91142fc61c729eba75c5902a20b50414

  • SHA256

    e24966ceb01b0b84fa06ff1d701c0a633c1a7805d6822ac537aafc7dbe1d7275

  • SHA512

    92cda2e4d183d11ec2ebdfd07e8cf8dbc94f64dbb88ed27f7f45be494c442c8be0592e53095f63b2f82aaee621b20622288551ec82d59424d033ae1951537c29

  • SSDEEP

    3072:9k6kvZjWnE5b68qaAF/OVLj4UbaxxmLQTi2//9U33T+NVzo:91kBmdaAF4RFSs

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\e24966ceb01b0b84fa06ff1d701c0a633c1a7805d6822ac537aafc7dbe1d7275.exe
    "C:\Users\Admin\AppData\Local\Temp\e24966ceb01b0b84fa06ff1d701c0a633c1a7805d6822ac537aafc7dbe1d7275.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:3252
    • C:\Users\Admin\yuanuep.exe
      "C:\Users\Admin\yuanuep.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:4912
  • 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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1068

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\yuanuep.exe

      Filesize

      224KB

      MD5

      78eb0bcf6275211bf647b8feae964412

      SHA1

      1c9340e387682c9aa3806e4fe0253279bb7bff54

      SHA256

      4150476ca388e1beba69c1198ab1da0630a489c9854901e4ecf2c009389ab546

      SHA512

      9556d95dfa969596b83245e8fb27fb4b70d9395b151ed0c2ba3da2e75ef6aa79bc3161cb242d761d2cb61e524fa9c33c97728daaa6e6132a32dd1469e2718af3