Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20260127-en
  • resource tags

    arch:armhfimage:debian12-armhf-20260127-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    16/10/2026, 18:24

General

  • Target
    arm6
  • Size 4.7MB
  • Sample261016-w2evqsty4p
  • SHA256 b1e2cc1be2f386d4ad171b7cb0df9eb9c881e5b5945224a38fd021e8e8de8378
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

  • Modifies systemd 2 TTPs 1 IoCs

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

  • Write file to user bin folder 2 IoCs
  • Enumerates kernel/hardware configuration 1 TTPs 1 IoCs

    Reads contents of /sys virtual filesystem to enumerate system information.

  • Reads runtime system information 5 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/arm6
    /tmp/arm6
    1⤵
    • Modifies systemd
    • Write file to user bin folder
    • Enumerates kernel/hardware configuration
    • Reads runtime system information
    • Writes file to tmp directory
    PID:773
    • /usr/bin/systemctl
      systemctl daemon-reload
      2⤵
      • Reads runtime system information
      PID:795
    • /usr/bin/systemctl
      systemctl enable sysd
      2⤵
      • Reads runtime system information
      PID:817
    • /usr/bin/systemctl
      systemctl start sysd
      2⤵
      • Reads runtime system information
      PID:835
    • /usr/bin/crontab
      crontab -l
      2⤵
        PID:838
      • /usr/bin/crontab
        crontab /tmp/cron_tmp
        2⤵
        • Creates/modifies Cron job
        PID:842

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          sysd.service

          • Path /etc/systemd/system/sysd.service
          • Size 175B
          • SHA256 cfad0df157c997fe75b54580ef544beb90f6275851878e1cf3b9a7749e3fab40
          • MD5 SHA1 SHA512 TLSH

          cron_tmp

          • Path /tmp/cron_tmp
          • Size 41B
          • SHA256 3a13b88885017f3318032aef9d0b829caf810c14f7dfa8440848b458499d0edf
          • MD5 SHA1 SHA512

          tmp.PFZN5D

          • Path /var/spool/cron/crontabs/tmp.PFZN5D
          • Size 228B
          • SHA256 109102b485a2cb23d8e8ecb7792f3df2c2e7b21118a77beef42481c8c144f19f
          • MD5 SHA1 SHA512 TLSH