Analysis

  • max time kernel
    149s
  • 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
    19-01-2025 14:17

General

  • Target

    hold.arm5.elf

  • Size

    73KB

  • MD5

    dbbfc41101d281284181405fb3bda5f4

  • SHA1

    02a937721a417d37ca224a2a442eb66f69b423a1

  • SHA256

    c37ed482dc4f51a198ebec5cbce5ccb03a7d591a108f5f6e3b3c96a388661314

  • SHA512

    f99d0c13a37577d977ddca337f869e8ab146b56e1fbb232ef33404434619b32f66b32dc70ce524f9eb6c4b0c8054171068b54b3ed201e698e028a30d0cdfd689

  • SSDEEP

    1536:xsvvmvVQbZ+vtxeGdZsmWVMN7x7WrFnqbO3nbf1xP+OUO:xsvvFzoZsmWVMWnq2j103O

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Writes file to system bin folder 2 IoCs
  • Changes its process name 1 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • /tmp/hold.arm5.elf
    /tmp/hold.arm5.elf
    1⤵
    • Deletes itself
    • Modifies Watchdog functionality
    • Writes file to system bin folder
    • Changes its process name
    • Reads runtime system information
    PID:657

Network

MITRE ATT&CK Enterprise v15

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