Overview

overview

9

Static

static

5

176.65.139...le.bin

ubuntu-18.04-amd64

9

Analysis

  • max time kernel
    33s
  • max time network
    150s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20260126-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20260126-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    10/05/2026, 12:10

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    176.65.139.68_sample.bin
  • Size 2.1MB
  • Sample260510-pcfbmsax6k
  • SHA256 91a62cbcc0bd9628da12416edf34ed9ae18008cb060093ab7543c9c461b759b1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoveryexecutionpersistenceprivilege_escalationupx

Malware Config

Signatures

  • Contacts a large (11448) 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
  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

    executionpersistenceprivilege_escalation
  • Creates/modifies environment variables 1 TTPs 2 IoCs

    Creating/modifying environment variables is a common persistence mechanism.

    persistenceprivilege_escalationdefense_evasion
  • Modifies init.d 2 TTPs 1 IoCs

    Adds/modifies system service, likely for persistence.

    persistence
  • Modifies systemd 2 TTPs 2 IoCs

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

    persistenceprivilege_escalation
  • Writes file to system bin folder 1 IoCs
  • Modifies Bash startup script 2 TTPs 2 IoCs
    persistence
  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Enumerates kernel/hardware configuration 1 TTPs 3 IoCs

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

    discovery
  • Reads runtime system information 52 IoCs

    Reads data from /proc virtual filesystem.

    discovery

Processes

  • /tmp/176.65.139.68_sample.bin
    /tmp/176.65.139.68_sample.bin
    1⤵
    • Creates/modifies environment variables
    • Modifies init.d
    • Modifies systemd
    • Writes file to system bin folder
    • Modifies Bash startup script
    • Enumerates kernel/hardware configuration
    • Reads runtime system information
    PID:1529
    • /bin/cp
      cp /tmp/176.65.139.68_sample.bin /root/.cache/.icons/vulcan-agent
      2⤵
      • Reads runtime system information
      PID:1536
    • /bin/loginctl
      loginctl enable-linger root
      2⤵
      • Reads runtime system information
      PID:1537
    • /bin/systemctl
      systemctl --user daemon-reload
      2⤵
      • Reads runtime system information
      PID:1538
    • /bin/systemctl
      systemctl --user enable vulcan-updater.service
      2⤵
      • Reads runtime system information
      PID:1539
    • /bin/systemctl
      systemctl --user start vulcan-updater.service
      2⤵
      • Reads runtime system information
      PID:1540
    • /bin/systemctl
      systemctl daemon-reload
      2⤵
      • Reads runtime system information
      PID:1541
    • /bin/systemctl
      systemctl enable vulcan-updater.service
      2⤵
      • Reads runtime system information
      PID:1562
    • /bin/systemctl
      systemctl start vulcan-updater.service
      2⤵
      • Reads runtime system information
      PID:1583
    • /usr/bin/crontab
      crontab -l
      2⤵
        PID:1585
      • /usr/bin/crontab
        crontab -
        2⤵
        • Creates/modifies Cron job
        PID:1586
      • /usr/sbin/update-rc.d
        update-rc.d vulcan defaults
        2⤵
          PID:1587
          • /usr/local/sbin/systemctl
            systemctl daemon-reload
            3⤵
              PID:1588
            • /usr/local/bin/systemctl
              systemctl daemon-reload
              3⤵
                PID:1588
              • /usr/sbin/systemctl
                systemctl daemon-reload
                3⤵
                  PID:1588
                • /usr/bin/systemctl
                  systemctl daemon-reload
                  3⤵
                    PID:1588
                  • /sbin/systemctl
                    systemctl daemon-reload
                    3⤵
                      PID:1588
                    • /bin/systemctl
                      systemctl daemon-reload
                      3⤵
                      • Reads runtime system information
                      PID:1588

                Network

                      MITRE ATT&CK Enterprise v16

                      Reconnaissance

                      Resource Development

                      Initial Access

                      Execution

                      Scheduled Task/Job

                      1
                      T1053

                      Cron

                      1
                      T1053.003

                      Persistence

                      Boot or Logon Autostart Execution

                      3
                      T1547

                      XDG Autostart Entries

                      1
                      T1547.013

                      Boot or Logon Initialization Scripts

                      1
                      T1037

                      RC Scripts

                      1
                      T1037.004

                      Create or Modify System Process

                      1
                      T1543

                      Systemd Service

                      1
                      T1543.002

                      Event Triggered Execution

                      1
                      T1546

                      Unix Shell Configuration Modification

                      1
                      T1546.004

                      Hijack Execution Flow

                      1
                      T1574

                      Path Interception by PATH Environment Variable

                      1
                      T1574.007

                      Scheduled Task/Job

                      1
                      T1053

                      Cron

                      1
                      T1053.003

                      Privilege Escalation

                      Boot or Logon Autostart Execution

                      3
                      T1547

                      XDG Autostart Entries

                      1
                      T1547.013

                      Boot or Logon Initialization Scripts

                      1
                      T1037

                      RC Scripts

                      1
                      T1037.004

                      Create or Modify System Process

                      1
                      T1543

                      Systemd Service

                      1
                      T1543.002

                      Event Triggered Execution

                      1
                      T1546

                      Unix Shell Configuration Modification

                      1
                      T1546.004

                      Hijack Execution Flow

                      1
                      T1574

                      Path Interception by PATH Environment Variable

                      1
                      T1574.007

                      Scheduled Task/Job

                      1
                      T1053

                      Cron

                      1
                      T1053.003

                      Defense Evasion

                      Hijack Execution Flow

                      1
                      T1574

                      Path Interception by PATH Environment Variable

                      1
                      T1574.007

                      Credential Access

                      Discovery

                      Network Service Discovery

                      2
                      T1046

                      System Information Discovery

                      1
                      T1082

                      Lateral Movement

                      Collection

                      Command and Control

                      Exfiltration

                      Impact

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      vulcan
                      • Path /etc/init.d/vulcan
                      • Size 365B
                      • SHA256 1228e9a1fd40be29f098b2e86805fdf3af045c7dba8d1ff94d8cd8b4d4599dac
                      • MD5 SHA1 SHA512 TLSH
                      Submit Download

                      vulcan-updater.service
                      • Path /etc/systemd/system/vulcan-updater.service
                      • Size 234B
                      • SHA256 e5fb0756e957b2179dc9440133b94dd0628188210a398659c7d44eeed15359f0
                      • MD5 SHA1 SHA512 TLSH
                      Submit Download

                      vulcan-agent
                      • Path /root/.cache/.icons/vulcan-agent
                      • Size 2.1MB
                      • SHA256 91a62cbcc0bd9628da12416edf34ed9ae18008cb060093ab7543c9c461b759b1
                      • MD5 SHA1 SHA512 SSDEEP TLSH
                      Submit Download

                      vulcan-updater.service
                      • Path /root/.config/systemd/user/vulcan-updater.service
                      • Size 231B
                      • SHA256 d0b60ad4ba17d38f6e998c02bad0408eb8003fdf5308797e038a4f7cf3e87109
                      • MD5 SHA1 SHA512 TLSH
                      Submit Download

                      agetty
                      • Path /sbin/agetty
                      • Size 73B
                      • SHA256 8f1235eb3833c13f3353c477563cf97baefb448026d5bfcbcebeded42e015975
                      • MD5 SHA1 SHA512 TLSH
                      Submit Download

                      tmp.g6VmDt
                      • Path /var/spool/cron/crontabs/tmp.g6VmDt
                      • Size 249B
                      • SHA256 250dfabfa2855fcc06c8c527bd7e2c926a029e4cd6cc60fb79652e8d701ae248
                      • MD5 SHA1 SHA512 TLSH
                      Submit Download