General

  • Target

    eab59707129d9936ffae7fd81bbd121712f8d129380cf918a9cefccdcb6e2308.elf

  • Size

    5.1MB

  • Sample

    250217-e6hnrazrhw

  • MD5

    af449b95e6d8acf8ba2ccd349c0da135

  • SHA1

    2ed2e31fd8fe3f537ed824d4c4aaa4a58ba39555

  • SHA256

    eab59707129d9936ffae7fd81bbd121712f8d129380cf918a9cefccdcb6e2308

  • SHA512

    2c33f4a2aecec1ed2d7e18909cb54b3cc421354def7869355ef155be13ca000994ed75eb50437d3f184345c83977019d1ad60b7fc97a6db88834eae5d5af34e9

  • SSDEEP

    98304:8cSBHdgN2a7JP97kJru8cYWPAXqEu+60:8cS03su+6

Malware Config

Extracted

Family

kaiji

C2

199.195.252.200:808

Targets

    • Target

      eab59707129d9936ffae7fd81bbd121712f8d129380cf918a9cefccdcb6e2308.elf

    • Size

      5.1MB

    • MD5

      af449b95e6d8acf8ba2ccd349c0da135

    • SHA1

      2ed2e31fd8fe3f537ed824d4c4aaa4a58ba39555

    • SHA256

      eab59707129d9936ffae7fd81bbd121712f8d129380cf918a9cefccdcb6e2308

    • SHA512

      2c33f4a2aecec1ed2d7e18909cb54b3cc421354def7869355ef155be13ca000994ed75eb50437d3f184345c83977019d1ad60b7fc97a6db88834eae5d5af34e9

    • SSDEEP

      98304:8cSBHdgN2a7JP97kJru8cYWPAXqEu+60:8cS03su+6

    • Kaiji

      Kaiji payload

    • Kaiji family

    • kaiji_chaosbot

      Chaos-variant payload

    • Executes dropped EXE

    • Modifies Watchdog functionality

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

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    • Creates/modifies environment variables

      Creating/modifying environment variables is a common persistence mechanism.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

    • Write file to user bin folder

    • Modifies Bash startup script

MITRE ATT&CK Enterprise v15

Tasks