Resubmissions

31/08/2026, 07:29

260831-jbbn6sfb998

31/08/2026, 07:24

260831-h8qnxseq6x7

31/08/2026, 07:12

260831-h1nvcsyzht7

General

  • Target
    AnalysisIMM.sh
  • Size 725B
  • Sample260831-jbbn6sfb99
  • SHA256 73bfa8063bdbce90ea47425d86eef68db934eec23f826e373b2c1ccd77f31924
  • MD5 SHA1 SHA512 TLSH

Malware Config

Targets

    • Target
      AnalysisIMM.sh
    • Size 725B
    • SHA256 73bfa8063bdbce90ea47425d86eef68db934eec23f826e373b2c1ccd77f31924
    • MD5 SHA1 SHA512 TLSH
    • Modifies password files for system users/ groups

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

    • Executes dropped EXE

    • Modifies Polkit authorization policy

      Rule or action files in the Polkit framework are written to, potentially allowing a process or user to execute privileged operations without requiring authentication.

    • 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.

    • Adds a user to the system

    • Checks hardware identifiers (DMI)

      Checks DMI information which indicate if the system is a virtual machine.

    • 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.

    • Write file to user bin folder

    • Modifies Bash startup script

    • Reads process memory

      Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

MITRE ATT&CK Enterprise v16

Tasks