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Analysis

  • max time kernel
    67s
  • max time network
    158s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    11/12/2024, 03:26

General

  • Target

    c551c9b232e01e120cea46d2276f3f92d5cfd492596eebf73fc6db9be119f27b.elf

  • Size

    185KB

  • MD5

    0803a1adcda8496063056fff664b52c5

  • SHA1

    9360e5aaf48c5ca30d19758ed84fb080720a0825

  • SHA256

    c551c9b232e01e120cea46d2276f3f92d5cfd492596eebf73fc6db9be119f27b

  • SHA512

    200cc962430df1ae704dd0199ea426a9ea6fb36e16283194c07f1a75e4f778e74a92a8469a5166a80d082c10f4f2c523acb99c265e86e8823b1ec71164aeb7bd

  • SSDEEP

    3072:aCwnsURFvwaN2q2PxGREb4cywoNKcayU9HlSgu4+wbZno:aC0tmbPkSb4cnoNKuU9HlPu/wRo

Malware Config

Signatures

  • Contacts a large (118125) amount of remote hosts 1 TTPs

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

  • Creates a large amount of network flows 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Changes its process name 1 IoCs
  • Reads runtime system information 3 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/c551c9b232e01e120cea46d2276f3f92d5cfd492596eebf73fc6db9be119f27b.elf
    /tmp/c551c9b232e01e120cea46d2276f3f92d5cfd492596eebf73fc6db9be119f27b.elf
    1⤵
    • Modifies Watchdog functionality
    • Changes its process name
    • Reads runtime system information
    PID:649
    • /bin/sh
      sh -c "rm -rf bin/busybox && mkdir bin; >bin/busybox && mv /tmp/c551c9b232e01e120cea46d2276f3f92d5cfd492596eebf73fc6db9be119f27b.elf bin/busybox; chmod 777 bin/busybox"
      2⤵
      • File and Directory Permissions Modification
      • Writes file to tmp directory
      PID:650
      • /bin/rm
        rm -rf bin/busybox
        3⤵
          PID:651
        • /bin/mkdir
          mkdir bin
          3⤵
          • Reads runtime system information
          PID:657
        • /bin/mv
          mv /tmp/c551c9b232e01e120cea46d2276f3f92d5cfd492596eebf73fc6db9be119f27b.elf bin/busybox
          3⤵
          • Reads runtime system information
          PID:659
        • /bin/chmod
          chmod 777 bin/busybox
          3⤵
          • File and Directory Permissions Modification
          PID:663

    Network

    MITRE ATT&CK Enterprise v15

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