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Overview

overview

10

Static

static

10

arm.elf

debian-9-armhf

9

Analysis

  • max time kernel
    137s
  • max time network
    154s
  • 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
    10/03/2025, 23:08

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General

  • Target

    arm.elf

  • Size

    60KB

  • MD5

    35c215d8e2b2ea03a8a191fb3723195a

  • SHA1

    c38bcfc3d7050edeff1b7dbffd85d07348bb01e9

  • SHA256

    c4fd68b20997f3c8a60dbadf177b3309d465f0a8bb0ad9b33b4c70ee74dc3a90

  • SHA512

    ea5a9fda95965b6eb55c47eefe2b42a9234d13c8d05556e72e916f98a626a0a835fa7f7828d4051b6056d639b06bec0136afa9ac3157736702b94c0ed9effdf8

  • SSDEEP

    1536:shzX+4Y8vHslnlyyMybOk7SMj8+JdzXbBRc:kzX+4Z4lFORMjfdzXo

Score
9/10
credential_accessdefense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (76426) amount of remote hosts 1 TTPs

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

    discovery
  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • Renames itself 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

    discovery
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads process memory 1 TTPs 64 IoCs

    Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

    credential_access
  • Changes its process name 1 IoCs
  • Reads system network configuration 1 TTPs 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery

Processes

  • /tmp/arm.elf
    /tmp/arm.elf
    1⤵
    • Modifies Watchdog functionality
    • Renames itself
    • Enumerates active TCP sockets
    • Reads process memory
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    PID:660

Network

MITRE ATT&CK Enterprise v15

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