Analysis

  • max time kernel
    122s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3c50a5e04cf999e097087219f291c86ded5368a5134d2d6613939768ce2b03e.exe
    "C:\Users\Admin\AppData\Local\Temp\c3c50a5e04cf999e097087219f291c86ded5368a5134d2d6613939768ce2b03e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Users\Admin\AppData\Local\Temp\biudfw.exe
      "C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
      2⤵
      • Executes dropped EXE
      PID:1748
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
      2⤵
      • Deletes itself
      PID:2564

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • 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

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

          Filesize

          147KB

          MD5

          2748a90c81fa5adfbc5c40c2c996e607

          SHA1

          3190da332d1ebb8cb699f7f09b42a4bc0033f43f

          SHA256

          5c77dd975ef53413f868a0e92a70eb20711a19ae70a6f3e47cf9dddcd5958e94

          SHA512

          93d99186d7fae6b25a4a7cd29d4ed5910745e37ec394a24fa3442c47008bc0ccbae934bd32f3e4f7fd91e6c6b83597fc6c098a838fca2dfeb4576bd085e66dfa

        • memory/1748-9-0x0000000000E70000-0x0000000000E97000-memory.dmp

          Filesize

          156KB

        • memory/1748-20-0x0000000000E70000-0x0000000000E97000-memory.dmp

          Filesize

          156KB

        • memory/1764-0-0x0000000000F30000-0x0000000000F57000-memory.dmp

          Filesize

          156KB

        • memory/1764-17-0x0000000000F30000-0x0000000000F57000-memory.dmp

          Filesize

          156KB