Overview

overview

7

Static

static

1

73b54a103d...12.elf

ubuntu-18.04-amd64

7

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    131s
  • 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
    15/08/2026, 15:32

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General

  • Target
    73b54a103d305a7bf5f989bf1a26f711b8cd719c9e50944d5b543517c2c94c12.elf
  • Size 721KB
  • Sample260815-sys2eaygna
  • SHA256 73b54a103d305a7bf5f989bf1a26f711b8cd719c9e50944d5b543517c2c94c12
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
credential_accessdiscoveryexecutionpersistenceprivilege_escalation

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 10 IoCs

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

  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

    executionpersistenceprivilege_escalation
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies systemd 2 TTPs 1 IoCs

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

    persistenceprivilege_escalation
  • Write file to user bin folder 1 IoCs
    persistence
  • 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 runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/73b54a103d305a7bf5f989bf1a26f711b8cd719c9e50944d5b543517c2c94c12.elf
    /tmp/73b54a103d305a7bf5f989bf1a26f711b8cd719c9e50944d5b543517c2c94c12.elf
    1⤵
    • Deletes itself
    • Executes dropped EXE
    • Write file to user bin folder
    PID:1492
  • /usr/sbin/udisksd
    /usr/sbin/udisksd
    1⤵
    • Modifies systemd
    • Reads process memory
    • Changes its process name
    • Reads runtime system information
    • Writes file to tmp directory
    PID:1494
    • /bin/sh
      sh -c "crontab -l 2>/dev/null"
      2⤵
        PID:1505
        • /usr/bin/crontab
          crontab -l
          3⤵
            PID:1506
        • /bin/sh
          sh -c "crontab /tmp/.tmp_694b7898 2>/dev/null"
          2⤵
            PID:1507
            • /usr/bin/crontab
              crontab /tmp/.tmp_694b7898
              3⤵
              • Creates/modifies Cron job
              PID:1508

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              dbus-monitor.service
              • Path /etc/systemd/system/dbus-monitor.service
              • Size 186B
              • SHA256 90036decfd64a2ae8eacad19b44ad9bd4b2206a6eabc29a2b725feb106e6bdfc
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              dbus-session.cache
              • Path /run/dbus-session.cache
              • Size 88B
              • SHA256 b8a0f74ea2dcef39c9c270f9f7a9639d160a6318a57a42f44b0fdd979f605e8d
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              .tmp_694b7898
              • Path /tmp/.tmp_694b7898
              • Size 46B
              • SHA256 85c04aca756afac533f10d8bd06e2597f5481b7acc782e03b2de512ad68ca24d
              • MD5 SHA1 SHA512
              Submit Download

              udisksd
              • Path /usr/sbin/udisksd
              • Size 721KB
              • SHA256 73b54a103d305a7bf5f989bf1a26f711b8cd719c9e50944d5b543517c2c94c12
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download

              tmp.sTb2xl
              • Path /var/spool/cron/crontabs/tmp.sTb2xl
              • Size 238B
              • SHA256 ca8e1b16131da130abae84faa57486db47cf8d54933549265bd842be5786b20f
              • MD5 SHA1 SHA512 TLSH
              Submit Download