General

  • Target

    4fdd73adf38351ecdc492292299aed07

  • Size

    114KB

  • Sample

    220621-rvlx9aebek

  • MD5

    4fdd73adf38351ecdc492292299aed07

  • SHA1

    9581d6780af73280831a2fae22636278f0d0992f

  • SHA256

    ca4f319704b8e8c93d10e74a8c8ba9760dc4f0ff29ff227ef44aec02bb675d40

  • SHA512

    f0e07114f4f4a573f39de66e64b66a859a2477b6071e441c37b4cffa30958d7d9bdfd3cae9362c30cb43ce80ddb96b856de67cd778bad63b3b66b703921a3967

Malware Config

Extracted

Family

wshrat

C2

http://62.102.148.154:4044

Targets

    • Target

      Custom Clearance Doc. AWB#5305323204643.js

    • Size

      127KB

    • MD5

      ca725f6c53d5cd93cdec59ea14d8493e

    • SHA1

      ca8118f5fa816e134340e114bccf2e2c2c9605b3

    • SHA256

      e83a856d7552c65e3a8ad5f411cfb0193a057de503be751ddd5e85ec42ad2b82

    • SHA512

      4b40a794761d31a70b48993523f8996130f2b612bdf0f0cbef6216981f41ea5f5cb7513e605b954e631664e414bcbf1ff4992abbe5458a886abc312268e07d9f

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • WSHRAT

      WSHRAT is a variant of Houdini worm and has vbs and js variants.

    • suricata: ET MALWARE WSHRAT CnC Checkin

      suricata: ET MALWARE WSHRAT CnC Checkin

    • suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm/WSHRAT Checkin 1

      suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm/WSHRAT Checkin 1

    • Blocklisted process makes network request

    • 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 Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks