General

  • Target

    kraapje.sh

  • Size

    2KB

  • Sample

    250217-l3g2daxrdn

  • MD5

    9787bbe5335e577aefac885ca109b8ab

  • SHA1

    16695628fa69d948c90dc7caa43848b3f0736a91

  • SHA256

    fc9b314f205b5c4b94f8d88d99d811494329aef8cd7d47b3f9c713b45f66d0dd

  • SHA512

    01b5b4480ff482ff952992132ab593ac98413b21142863dd576e3f7d769b3348a497ff78996ad3a6b924eefe7fc03dde6df6bf9ea5e88b49863030f8019143b5

Malware Config

Extracted

Family

mirai

Botnet

KURC

Extracted

Family

mirai

Botnet

KURC

Extracted

Family

mirai

Botnet

KURC

Targets

    • Target

      kraapje.sh

    • Size

      2KB

    • MD5

      9787bbe5335e577aefac885ca109b8ab

    • SHA1

      16695628fa69d948c90dc7caa43848b3f0736a91

    • SHA256

      fc9b314f205b5c4b94f8d88d99d811494329aef8cd7d47b3f9c713b45f66d0dd

    • SHA512

      01b5b4480ff482ff952992132ab593ac98413b21142863dd576e3f7d769b3348a497ff78996ad3a6b924eefe7fc03dde6df6bf9ea5e88b49863030f8019143b5

    • Mirai

      Mirai is a prevalent Linux malware infecting exposed network devices.

    • Mirai family

    • Contacts a large (115780) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • File and Directory Permissions Modification

      Adversaries may modify file or directory permissions to evade defenses.

    • Executes dropped EXE

    • Modifies Watchdog functionality

      Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Writes file to system bin folder

MITRE ATT&CK Enterprise v15

Tasks