General

  • Target

    ENIC nº 0067-31-2022.js

  • Size

    121KB

  • Sample

    220131-k831cshec8

  • MD5

    6ff266d1f6fa341793a403052fc39607

  • SHA1

    f21b1bfd5a7060d26e56617841b542900ca4d3bc

  • SHA256

    883b72df75908cb9779de8356746f0979353a1009838d18602b58710746ad2cb

  • SHA512

    e5d6b4f140fcba0158c41cd9cead70595fbb57cffc084c372e4ca21cb65364f8346e5eb868e5b57eaa33f6fa9375895feb96a486c01a3fc1216ab4f155ae5e6b

Malware Config

Extracted

Family

vjw0rm

C2

http://grace2020.home-webserver.de:3774

Targets

    • Target

      ENIC nº 0067-31-2022.js

    • Size

      121KB

    • MD5

      6ff266d1f6fa341793a403052fc39607

    • SHA1

      f21b1bfd5a7060d26e56617841b542900ca4d3bc

    • SHA256

      883b72df75908cb9779de8356746f0979353a1009838d18602b58710746ad2cb

    • SHA512

      e5d6b4f140fcba0158c41cd9cead70595fbb57cffc084c372e4ca21cb65364f8346e5eb868e5b57eaa33f6fa9375895feb96a486c01a3fc1216ab4f155ae5e6b

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Blocklisted process makes network request

    • Drops startup file

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Tasks