General

  • Target

    AstroBootStrapper_upd.exe

  • Size

    35.3MB

  • Sample

    240727-bxnxma1drf

  • MD5

    6366596bda3516a281a91c2c10217f5f

  • SHA1

    2029a7837a7aecc36e453ac7accaaf60be851a0e

  • SHA256

    a02eef7ae229cfab507ec2a39994995ea8d905b6ded899b86aa2b64f50046b79

  • SHA512

    e98f7e718fd97e1affa6cd591bb272bad0fea77d08a014d4075cfa0e82c0b270dea242e47541e37864518fa0dc356c16eb95b39c72a7c49513028db822e8cb8f

  • SSDEEP

    786432:NUufa9gYBzTKPkwETf5bPBnB7294tGiNFeGl9jPlyTiS2j+S0mLzSqvZD:bfayKUuTfFPK94GiuGrjPloijT0O2qvp

Malware Config

Extracted

Family

xworm

Version

5.0

C2

147.185.221.21:37029

Mutex

ImJIbbArI7SKOVwD

Attributes
  • Install_directory

    %AppData%

  • install_file

    ctfmon.exe

aes.plain

Targets

    • Target

      AstroBootStrapper_upd.exe

    • Size

      35.3MB

    • MD5

      6366596bda3516a281a91c2c10217f5f

    • SHA1

      2029a7837a7aecc36e453ac7accaaf60be851a0e

    • SHA256

      a02eef7ae229cfab507ec2a39994995ea8d905b6ded899b86aa2b64f50046b79

    • SHA512

      e98f7e718fd97e1affa6cd591bb272bad0fea77d08a014d4075cfa0e82c0b270dea242e47541e37864518fa0dc356c16eb95b39c72a7c49513028db822e8cb8f

    • SSDEEP

      786432:NUufa9gYBzTKPkwETf5bPBnB7294tGiNFeGl9jPlyTiS2j+S0mLzSqvZD:bfayKUuTfFPK94GiuGrjPloijT0O2qvp

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks