Analysis

  • max time kernel
    141s
  • max time network
    151s
  • 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, 00:32

General

  • Target

    c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe

  • Size

    201KB

  • MD5

    3d20deb54ee3306d88850606dedb6737

  • SHA1

    44a0359d73aaee8be34498397595ec796e7f83b3

  • SHA256

    c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe

  • SHA512

    58f6f6c14c17db51c436c1c2b7b166a5a91fa07cf184358a4a643de46557fd5e4c88d5c00ac775ca76f5d3ba6f3a1c40a6c278e4fedb723de3326cff2d0fda5a

  • SSDEEP

    3072:llfTVlvfdEDRmyc+XA60Kj4omjuVZ6rNp0Vh:lpTV9rZllomjuCNp0f

Score
10/10

Malware Config

Extracted

Family

urelas

C2

218.54.47.76

218.54.47.77

218.54.47.74

Signatures

  • Urelas

    Urelas is a trojan targeting card games.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe
    "C:\Users\Admin\AppData\Local\Temp\c61e4c357290a31faca4db045b53cc112cad3ac615f167ed3e54bf837bc13afe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4432
    • C:\Users\Admin\AppData\Local\Temp\biudfw.exe
      "C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
      2⤵
      • Executes dropped EXE
      PID:2392
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
      2⤵
        PID:4584
    • 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=4004 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4432

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\biudfw.exe

              Filesize

              201KB

              MD5

              10cf69dabe7e7d95f1c29100183be0ed

              SHA1

              59e3bb0b907688dd135e5f695d1dbbdbf41d4006

              SHA256

              d8c697246088c74958f41d29d7d1d27663f312c975c93b1799bb3fa052cc06d1

              SHA512

              ea0c1fa9e4f4eca26bc83d50e3f33693e16f53b1a1f15eecac29847f68f5949e991c8705609550c14f1f0e4d6c72a66078013fdf4fc7448534d6cff7fecf0ad4

            • C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

              Filesize

              512B

              MD5

              fc7c2ef888930c9e3d5e328202990a11

              SHA1

              336cbc6a838acad79206b98e9eb2414736e718ed

              SHA256

              79115937973fc5e46c104e0eff35fe65ece75db6224847bcd152057b496ed517

              SHA512

              a426d6b66e7576aa639692147f14d8c6c8b580b16ac2b17d2c8e68e01f423d11205fb806074b26273f1ca267f85bc6edd91f932e7d5deeb95811cd20622690e7

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

              Filesize

              338B

              MD5

              f64070642a1a720d7a17e819dc4385e2

              SHA1

              f95d5d6ab332a0eacf2254bf0abcf08a924c34bf

              SHA256

              e28fcc2140ea98d7549421823c158593a8a668bc272bf5ad0ee2a4cbfc4ad1c6

              SHA512

              ca3ba9b70ba45567ad3d86cd176fdd1aaf4ef0c9ccb4df2182b9d3ee7dcdeffd08f6076edc426958b1e243791708fea93cf0284eaed1feeb309ce16a29fc43fa

            • memory/2392-12-0x0000000000BE0000-0x0000000000C18000-memory.dmp

              Filesize

              224KB

            • memory/2392-20-0x0000000000BE0000-0x0000000000C18000-memory.dmp

              Filesize

              224KB

            • memory/2392-21-0x0000000000BE0000-0x0000000000C18000-memory.dmp

              Filesize

              224KB

            • memory/4432-0-0x0000000000870000-0x00000000008A8000-memory.dmp

              Filesize

              224KB

            • memory/4432-18-0x0000000000870000-0x00000000008A8000-memory.dmp

              Filesize

              224KB