Extracted

• • Target
    linux_arm7.elf
  • Size 2.0MB
  • SHA256 28a3088ff85b706faab583271b8bfbc68ad876c4dd0b0353113dd70318ea2e97
  • MD5 4a11ab84ef1e9e32b579d66d3248d6aa
  • SHA1 31912eb23141966a180acf84140d08f144b10c05
  • SHA512 6312f587d37d56a420519d2783214183d2f2644b6a13a14b7b2c442fcbf8e0c87ad75c923c8f66599e2c9e212f246259994688520919dde7e66c8c295ad8f47c
  • SSDEEP 24576:gNwGGRggwEGpD5IaZIJzIDgliOAMUh1Rskiq1zpQHCaRU7axVL0rKak3dVh/cviW:VrcNoLN3z82T16
  • TLSH
    T1ADA50857B8918582C4E42677ACBE81C833635EB99B8653266D04FE3C3EBF2D90E35354
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  9^/10

  defense_evasiondiscoveryexecutionpersistenceprivilege_escalationransomware

  • Renames multiple (1004) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware

  • Executes dropped EXE

  • Modifies Watchdog functionality

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

    defense_evasion

  • Creates/modifies Cron job

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

    executionpersistenceprivilege_escalation

  • Creates/modifies environment variables

    Creating/modifying environment variables is a common persistence mechanism.

    persistenceprivilege_escalationdefense_evasion

  • Disables SELinux

    Disables SELinux security module.

    defense_evasion

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies init.d

    Adds/modifies system service, likely for persistence.

    persistence

  • Modifies systemd

    Adds/ modifies systemd service files. Likely to achieve persistence.

    persistenceprivilege_escalation

  • Write file to user bin folder

    persistence

  • Modifies Bash startup script

    persistence
  behavioral1