General

  • Target

    e8361def9aa8d9f49d44a637431da0237cbdbc0b0993293b22d6c4f8d832a4ef.elf

  • Size

    5.1MB

  • Sample

    250217-e3lw1azqhn

  • MD5

    f648315e395a757a8d0caefb442a3f33

  • SHA1

    b49ca10b115b41f4e7360a57658a05cb5b130e2e

  • SHA256

    e8361def9aa8d9f49d44a637431da0237cbdbc0b0993293b22d6c4f8d832a4ef

  • SHA512

    5aafc3c9f1f59be8aab2ed16ab64dff77df92deee14675aadf6faf69883115f13f244ec7335a64e83b9a6f1d752e55b4d93f2ec9a33944a1a788f63ec3ddfdd4

  • SSDEEP

    49152:QtKY0CdO+kBRx0Tg0qTecEG7meYuhN+lYfQMcU1F1:OKY3U+qRxQ3qKDM

Malware Config

Extracted

Family

kaiji

C2

199.195.252.200:808

Targets

    • Target

      e8361def9aa8d9f49d44a637431da0237cbdbc0b0993293b22d6c4f8d832a4ef.elf

    • Size

      5.1MB

    • MD5

      f648315e395a757a8d0caefb442a3f33

    • SHA1

      b49ca10b115b41f4e7360a57658a05cb5b130e2e

    • SHA256

      e8361def9aa8d9f49d44a637431da0237cbdbc0b0993293b22d6c4f8d832a4ef

    • SHA512

      5aafc3c9f1f59be8aab2ed16ab64dff77df92deee14675aadf6faf69883115f13f244ec7335a64e83b9a6f1d752e55b4d93f2ec9a33944a1a788f63ec3ddfdd4

    • SSDEEP

      49152:QtKY0CdO+kBRx0Tg0qTecEG7meYuhN+lYfQMcU1F1:OKY3U+qRxQ3qKDM

    • 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