Overview

overview

6

Static

static

5

killbotx.x86_64

ubuntu-18.04-amd64

6

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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
    07/08/2026, 18:16

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General

  • Target
    killbotx.x86_64
  • Size 51KB
  • Sample260807-wwggdatyet
  • SHA256 ea7244d77c73627733522c2658ccd158cd91d6505aaefbd83ed12259811324c0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
discoveryexecutionpersistenceprivilege_escalationupx

Malware Config

Signatures

  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

    executionpersistenceprivilege_escalation
  • Modifies rc script 2 TTPs 1 IoCs

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

    persistence
  • 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
  • UPX packed file 1 IoCs

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

    upx
  • Changes its process name 4 IoCs
  • Reads runtime system information 8 IoCs

    Reads data from /proc virtual filesystem.

    discovery

Processes

  • /tmp/killbotx.x86_64
    /tmp/killbotx.x86_64
    1⤵
    • Modifies rc script
    • Modifies systemd
    • Write file to user bin folder
    • Changes its process name
    • Reads runtime system information
    PID:1494
    • /bin/sh
      sh -c "systemctl enable 9nbs7p2di6u.service >/dev/null 2>&1"
      2⤵
        PID:1503
        • /bin/systemctl
          systemctl enable 9nbs7p2di6u.service
          3⤵
          • Reads runtime system information
          PID:1504
      • /bin/sh
        sh -c "(crontab -l 2>/dev/null | grep -qF '/usr/local/bin/7lq3gstv3b9vayu') || { (crontab -l 2>/dev/null; echo '@reboot /usr/local/bin/7lq3gstv3b9vayu &') | crontab -; } >/dev/null 2>&1"
        2⤵
          PID:1525
          • /bin/grep
            grep -qF /usr/local/bin/7lq3gstv3b9vayu
            3⤵
              PID:1528
            • /usr/bin/crontab
              crontab -l
              3⤵
                PID:1527
              • /usr/bin/crontab
                crontab -
                3⤵
                • Creates/modifies Cron job
                PID:1530
              • /usr/bin/crontab
                crontab -l
                3⤵
                  PID:1531

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  9nbs7p2di6u.service
                  • Path /etc/systemd/system/9nbs7p2di6u.service
                  • Size 186B
                  • SHA256 36106381513a42811eae522050687d37cc901fbfa36ead7a77d562f985560da6
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  7lq3gstv3b9vayu
                  • Path /usr/local/bin/7lq3gstv3b9vayu
                  • Size 51KB
                  • SHA256 ea7244d77c73627733522c2658ccd158cd91d6505aaefbd83ed12259811324c0
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  tmp.9ovRFQ
                  • Path /var/spool/cron/crontabs/tmp.9ovRFQ
                  • Size 216B
                  • SHA256 c00987f704db6c3afe25224e6ab01de07da9160c444a3dd346c4fb633a02f498
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download