Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20260513-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    30/09/2026, 16:50

General

  • Target
    i686.elf
  • Size 560KB
  • Sample260930-vcdqpsy12j
  • SHA256 169064926db1db0f0cec2245c9a6ab385c50f48ad6fe6a9202c4e4a554289d30
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies init.d 2 TTPs 1 IoCs

    Adds/modifies system service, likely for persistence.

  • Modifies rc script 2 TTPs 1 IoCs

    Adding/modifying system rc scripts is a common persistence mechanism.

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

    Uses contents of /proc filesystem to enumerate network settings.

  • Reads runtime system information 64 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/i686.elf
    /tmp/i686.elf
    1⤵
    • Creates/modifies Cron job
    • Enumerates active TCP sockets
    • Modifies init.d
    • Modifies rc script
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    • Writes file to tmp directory
    PID:1509

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        qv3b

        • Path /etc/cron.d/qv3b
        • Size 24B
        • SHA256 11911c5bde389370c5b47ffbd3d9f600cdbf87eb2514272aadbffae1eabc12b8
        • MD5 SHA1 SHA512

        qv3b

        • Path /etc/init.d/qv3b
        • Size 57B
        • SHA256 b70c45c5db1a50913f4447ef09811359aac0500e0598871e11156c2146100c93
        • MD5 SHA1 SHA512 TLSH

        rc.local

        • Path /etc/rc.local
        • Size 14B
        • SHA256 76cd029754834d6468966383c7c495a6bf54188d9b6f823d70443d77bee372e0
        • MD5 SHA1 SHA512

        .qv3b

        • Path /tmp/.qv3b
        • Size 560KB
        • SHA256 169064926db1db0f0cec2245c9a6ab385c50f48ad6fe6a9202c4e4a554289d30
        • MD5 SHA1 SHA512 SSDEEP TLSH