General

  • Target
    sample
  • Size 258KB
  • Sample260218-peccrsbz3b
  • SHA256 8bc7805708fbea7266907799e49f4c5b518366a3755e261c0d46178ec7eaafdc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      sample
    • Size 258KB
    • SHA256 8bc7805708fbea7266907799e49f4c5b518366a3755e261c0d46178ec7eaafdc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Chimera

      Ransomware which infects local and network files, often distributed via Dropbox links.

    • Chimera Ransomware Loader DLL

      Drops/unpacks executable file which resembles Chimera's Loader.dll.

    • Chimera family

    • Renames multiple (3480) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • 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.

MITRE ATT&CK Enterprise v16

Tasks