Analysis

  • max time kernel
    144s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/03/2024, 23:47

General

  • Target

    c3c50a5e04cf999e097087219f291c86ded5368a5134d2d6613939768ce2b03e.exe

  • Size

    147KB

  • MD5

    03658b946ac0a9c0df49f1b5e7c87206

  • SHA1

    c4f83d6791833462add5f90e34a8318c08cbb660

  • SHA256

    c3c50a5e04cf999e097087219f291c86ded5368a5134d2d6613939768ce2b03e

  • SHA512

    82a7a1655d88394d018ff334831df458afa73835e943c9b32340d3c232da11d6acaaa632b73084a21c86d7e8b8d7345568474e605c432ccfeda130f5fe64f875

  • SSDEEP

    3072:L/5FqCxiXEcO3XfGf2tMUW6o5gRwdllDzXv:L/5FqCxUElfQDR5gRC3f

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\c3c50a5e04cf999e097087219f291c86ded5368a5134d2d6613939768ce2b03e.exe
    "C:\Users\Admin\AppData\Local\Temp\c3c50a5e04cf999e097087219f291c86ded5368a5134d2d6613939768ce2b03e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3472
    • C:\Users\Admin\AppData\Local\Temp\biudfw.exe
      "C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
      2⤵
      • Executes dropped EXE
      PID:804
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
      2⤵
        PID:4860

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            147KB

            MD5

            7f2e47a3e13d0de1d873024a6615453b

            SHA1

            922b437c6e166b6e29c3afa3e98b85880ecaef8f

            SHA256

            3955b655862b5ebbdfb835a4f1d50c624a0db93b3d9d96747ddf23b889af54f7

            SHA512

            ad9e047738cb9a913082da15291592a2c699bfbedfcaa036f4c6c898d865e202fe07e4797f0f9906a4c6a0cc7754680e4ef8851c3cb45aa2c84d25875f1fe01c

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

            Filesize

            512B

            MD5

            e2d9c84d22710b94f88db5e136efd92e

            SHA1

            5636678dda45ea10068357a9b17878399804aea3

            SHA256

            91377fdab72045adb923f62c3b0b46de7360e62beaab96489eefb36dd8554f25

            SHA512

            11159ba71474c0fc20139e27d71e10349b486d17cdd60a1df93babf9d8f40d8ab0764a881b93472e03036a50735b2b3defc790da5519d8cf723c6de46b008f3d

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

            Filesize

            338B

            MD5

            d732eaa281de751ba31a94485d3ec3ba

            SHA1

            0fa7f872ef8cef20902ddbf368e1675e8e6bf3de

            SHA256

            346a210530638d2ad77b850382def437e7667c212ec9c864ce5f092c0783a60b

            SHA512

            383396611aaec52532bd022e998c397814fbcfa5953c390aeafd5e4a99c71a9a4dcd622a2b53f1cd7d936f7a3093a0d97e6306cb5e36d534fee2e0798e87f02f

          • memory/804-13-0x0000000000DE0000-0x0000000000E07000-memory.dmp

            Filesize

            156KB

          • memory/804-20-0x0000000000DE0000-0x0000000000E07000-memory.dmp

            Filesize

            156KB

          • memory/3472-0-0x0000000000B20000-0x0000000000B47000-memory.dmp

            Filesize

            156KB

          • memory/3472-17-0x0000000000B20000-0x0000000000B47000-memory.dmp

            Filesize

            156KB