Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/09/2024, 23:55

General

  • Target
    e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe
  • Size 64KB
  • Sample240918-3yetwszdmd
  • SHA256 e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471
  • MD5 SHA1 SHA512 SSDEEP
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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe
    "C:\Users\Admin\AppData\Local\Temp\e746fbef75e3cc09dc69be92d1aabb959214c034706a3e801036689ce5729471N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Users\Admin\AppData\Local\Temp\biudfw.exe
      "C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2184
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3904

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        biudfw.exe

        • Path C:\Users\Admin\AppData\Local\Temp\biudfw.exe
        • Size 64KB
        • SHA256 d2deb6a03cbb5855516c80df529e80b5e4e20fb1bc42b95415790615d8134c86
        • MD5 SHA1 SHA512 SSDEEP

        golfinfo.ini

        • Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
        • Size 512B
        • SHA256 44f3db1bb73bb207a88008ae28d0399f888b5714ccccb2056f4148b4455e693d
        • MD5 SHA1 SHA512

        sanfdr.bat

        • Path C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
        • Size 340B
        • SHA256 002409ecb1af31cdd8afece723eb165c7fcb5de75428a849c17eed71a93c7bfe
        • MD5 SHA1 SHA512

        memory/2184-15-0x0000000000CD0000-0x0000000000CF5000-memory.dmp

        memory/2184-20-0x0000000000CD0000-0x0000000000CF5000-memory.dmp

        memory/2184-22-0x0000000000CD0000-0x0000000000CF5000-memory.dmp

        memory/2184-28-0x0000000000CD0000-0x0000000000CF5000-memory.dmp

        memory/2624-0-0x00000000005D0000-0x00000000005F5000-memory.dmp

        memory/2624-17-0x00000000005D0000-0x00000000005F5000-memory.dmp