General

  • Target
    22d30cf7238704569864e016ff5d4fe72d737485320ea423c8e7453605e6a9f2.zip
  • Size 9KB
  • Sample260628-a7xrvaex2w
  • SHA256 de906c91f44a826b5713688646e939b28340422624231b2a10bb6501028b1fbf
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      22d30cf7238704569864e016ff5d4fe72d737485320ea423c8e7453605e6a9f2
    • Size 38KB
    • SHA256 22d30cf7238704569864e016ff5d4fe72d737485320ea423c8e7453605e6a9f2
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Adds new SSH keys

      Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.

    • Modifies password files for system users/ groups

      Modifies files storing password hashes of existing users/ groups, likely to grant additional privileges.

    • File and Directory Permissions Modification

      Adversaries may modify file or directory permissions to evade defenses.

    • Executes dropped EXE

    • OS Credential Dumping

      Adversaries may attempt to dump credentials to use it in password cracking.

    • Abuse Elevation Control Mechanism: Sudo and Sudo Caching

      Abuse sudo or cached sudo credentials to execute code.

    • Reads AppArmor ptrace settings

      Discovery of allowed ptrace capabilities by AppArmor.

    • Adds a user to the system

    • Creates/modifies environment variables

      Creating/modifying environment variables is a common persistence mechanism.

    • Deletes log files

      Deletes log files on the system.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Reads hardware information

      Accesses system info like serial numbers, manufacturer names etc.

    • Reads network interface configuration

      Fetches information about one or more active network interfaces.

    • Uses Polkit to run commands

      Uses Polkit pkexec as a proxy to execute commands, possibly to bypass security restrictions.

    • Modifies Bash startup script

MITRE ATT&CK Enterprise v16

Tasks