General

  • Target

    524a898e18999ceac864dbac5b85fa2f14392e389b3c32f77d58e2a89cdf01c4.exe

  • Size

    3.2MB

  • Sample

    240524-nmdecsfb4x

  • MD5

    db5c28ec647afd894c01422584d551a5

  • SHA1

    fa0b5ebcb983509eebc7222725792976fad2aca8

  • SHA256

    524a898e18999ceac864dbac5b85fa2f14392e389b3c32f77d58e2a89cdf01c4

  • SHA512

    730054505deddeeefce4b1cc3b8ea362946e9e12ea289bc64285c0ce417d8964a767d03ccdf69ab4dd184d9888b9f3c1b51134cfb9c067861b5c1f4c06a3f67a

  • SSDEEP

    24576:s0JR6V45PL2ybTlBpPcmtR9tArJms0dIU1wuKav4WgNFlLKKDGyMgl+ICHusEd:5iylZ9tAcBSGgJtAZu

Malware Config

Targets

    • Target

      524a898e18999ceac864dbac5b85fa2f14392e389b3c32f77d58e2a89cdf01c4.exe

    • Size

      3.2MB

    • MD5

      db5c28ec647afd894c01422584d551a5

    • SHA1

      fa0b5ebcb983509eebc7222725792976fad2aca8

    • SHA256

      524a898e18999ceac864dbac5b85fa2f14392e389b3c32f77d58e2a89cdf01c4

    • SHA512

      730054505deddeeefce4b1cc3b8ea362946e9e12ea289bc64285c0ce417d8964a767d03ccdf69ab4dd184d9888b9f3c1b51134cfb9c067861b5c1f4c06a3f67a

    • SSDEEP

      24576:s0JR6V45PL2ybTlBpPcmtR9tArJms0dIU1wuKav4WgNFlLKKDGyMgl+ICHusEd:5iylZ9tAcBSGgJtAZu

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks