General

  • Target

    sexclientsiegheil1.exe

  • Size

    65KB

  • Sample

    250302-t55jfsyvcz

  • MD5

    446ccea41c7662e0e5e42b8973dddf6c

  • SHA1

    d7a1fc984fe343bc1381bc1fd8193b849fdf0066

  • SHA256

    3a77d5cb3177ac53062c5cc0dbdd844efa661c567588a62a3ecd2114f07ce22d

  • SHA512

    2e36d6da44e0289577dca728c5c734cef5a0f94e7fff5447fb6739a9855013f20a2a015a7fcc021870ff54f20ae24a39691eef5d0ed35ccd73471076edba741c

  • SSDEEP

    1536:oeLK+ZR+gq5PTEVjP+b94PItjHPpjBRqFP9OTUF:hvZRhVjP+bqCjHPpfqTOTy

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/p1KPLDhy

Targets

    • Target

      sexclientsiegheil1.exe

    • Size

      65KB

    • MD5

      446ccea41c7662e0e5e42b8973dddf6c

    • SHA1

      d7a1fc984fe343bc1381bc1fd8193b849fdf0066

    • SHA256

      3a77d5cb3177ac53062c5cc0dbdd844efa661c567588a62a3ecd2114f07ce22d

    • SHA512

      2e36d6da44e0289577dca728c5c734cef5a0f94e7fff5447fb6739a9855013f20a2a015a7fcc021870ff54f20ae24a39691eef5d0ed35ccd73471076edba741c

    • SSDEEP

      1536:oeLK+ZR+gq5PTEVjP+b94PItjHPpjBRqFP9OTUF:hvZRhVjP+bqCjHPpfqTOTy

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks