General

  • Target

    42f07bec4edcba04adac1d944f5ec131628565da831fccbfcd42292ea520a620

  • Size

    1.2MB

  • Sample

    220201-kjw6hsbehk

  • MD5

    268360527625d09e747d9f7ab1f84da5

  • SHA1

    09772eb89c9743d3a6d7b2709c76e9740aa4c4b1

  • SHA256

    42f07bec4edcba04adac1d944f5ec131628565da831fccbfcd42292ea520a620

  • SHA512

    07fba0c06040fe4ef5f812a52d639bdea6cbe5bf7ff4560403ad12955e6b1ff2b4615361ac4533696a6c5e12d36fb2d2e0df3da2927f6b45f154f0a4e83315e1

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://myexternalip.com/raw

Targets

    • Target

      42f07bec4edcba04adac1d944f5ec131628565da831fccbfcd42292ea520a620

    • Size

      1.2MB

    • MD5

      268360527625d09e747d9f7ab1f84da5

    • SHA1

      09772eb89c9743d3a6d7b2709c76e9740aa4c4b1

    • SHA256

      42f07bec4edcba04adac1d944f5ec131628565da831fccbfcd42292ea520a620

    • SHA512

      07fba0c06040fe4ef5f812a52d639bdea6cbe5bf7ff4560403ad12955e6b1ff2b4615361ac4533696a6c5e12d36fb2d2e0df3da2927f6b45f154f0a4e83315e1

    • Matrix Ransomware

      Targeted ransomware with information collection and encryption functionality.

    • suricata: ET MALWARE MSIL/Matrix Ransomware CnC Activity

      suricata: ET MALWARE MSIL/Matrix Ransomware CnC Activity

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Blocklisted process makes network request

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Sets service image path in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks