General

  • Target

    Steam Servers Starter.exe

  • Size

    328KB

  • Sample

    241115-f9vyxszdkp

  • MD5

    118058cb2e49ff809845d5543a8ee5c8

  • SHA1

    f7289d94b973fcbe0a064ed798c9328abecffca0

  • SHA256

    1133b725403821998bc9750d965d028ae078a3cc8d6014cbf231f7fb40a14f92

  • SHA512

    594bc589ca60bd653fabf72c34fb7e69de25643cbe19bbe1ed5e406390d7b6ac58c7adf76d66fc22d998b35bcfa5e0b07932aa6b73aee8cab1c277301c71bbf4

  • SSDEEP

    6144:rWBIIzFb83+GIIIIIIIhIIIIIIIIIIIIIIIU:qBIUi4

Malware Config

Extracted

Family

xworm

C2

vshostupdater.duckdns.org:1177

http://vshostupdater.duckdns.org:1177

189.14.62.242:1177

192.168.1.6:1177

Attributes
  • Install_directory

    %AppData%

  • install_file

    svhostupdt.exe

Targets

    • Target

      Steam Servers Starter.exe

    • Size

      328KB

    • MD5

      118058cb2e49ff809845d5543a8ee5c8

    • SHA1

      f7289d94b973fcbe0a064ed798c9328abecffca0

    • SHA256

      1133b725403821998bc9750d965d028ae078a3cc8d6014cbf231f7fb40a14f92

    • SHA512

      594bc589ca60bd653fabf72c34fb7e69de25643cbe19bbe1ed5e406390d7b6ac58c7adf76d66fc22d998b35bcfa5e0b07932aa6b73aee8cab1c277301c71bbf4

    • SSDEEP

      6144:rWBIIzFb83+GIIIIIIIhIIIIIIIIIIIIIIIU:qBIUi4

    • 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

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks