Overview

overview

7

Static

static

5

6c15b783dd...85.elf

ubuntu-18.04-amd64

7

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
    12/08/2026, 04:34

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General

  • Target
    6c15b783dd29f5d28b1dacd9154947931d00f442539c4218c36cc54fbf76b885.elf
  • Size 47KB
  • Sample260812-e7engsae36
  • SHA256 6c15b783dd29f5d28b1dacd9154947931d00f442539c4218c36cc54fbf76b885
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
credential_accessdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationupx

Malware Config

Signatures

  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • 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 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

  • Modifies init.d 2 TTPs 1 IoCs

    Adds/modifies system service, likely for persistence.

    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
  • Writes file to system bin folder 2 IoCs
  • 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
  • UPX packed file 1 IoCs

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

    upx
  • 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/6c15b783dd29f5d28b1dacd9154947931d00f442539c4218c36cc54fbf76b885.elf
    /tmp/6c15b783dd29f5d28b1dacd9154947931d00f442539c4218c36cc54fbf76b885.elf
    1⤵
    • Modifies Watchdog functionality
    • Enumerates active TCP sockets
    • Modifies init.d
    • Modifies systemd
    • Write file to user bin folder
    • Writes file to system bin folder
    • Reads process memory
    • Reads system network configuration
    • Reads runtime system information
    PID:1474
    • /bin/sh
      sh -c "systemctl enable infinitech >/dev/null 2>&1"
      2⤵
        PID:1478
        • /bin/systemctl
          systemctl enable infinitech
          3⤵
            PID:1479
          • /snap/bin/systemctl
            systemctl enable infinitech
            3⤵
              PID:1479
          • /bin/sh
            sh -c "systemctl start infinitech >/dev/null 2>&1"
            2⤵
              PID:1480
              • /bin/systemctl
                systemctl start infinitech
                3⤵
                  PID:1481
                • /snap/bin/systemctl
                  systemctl start infinitech
                  3⤵
                    PID:1481
                • /bin/sh
                  sh -c "(crontab -l 2>/dev/null; echo \"7 7 7 7 7 /usr/local/bin/infinitd\") | crontab - >/dev/null 2>&1"
                  2⤵
                    PID:1482
                    • /usr/bin/crontab
                      crontab -
                      3⤵
                      • Creates/modifies Cron job
                      PID:1484
                    • /usr/bin/crontab
                      crontab -l
                      3⤵
                        PID:1485
                    • /bin/sh
                      sh -c "update-rc.d infinitech defaults >/dev/null 2>&1"
                      2⤵
                        PID:1488
                        • /usr/sbin/update-rc.d
                          update-rc.d infinitech defaults
                          3⤵
                            PID:1489

                      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

                            2
                            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

                            Scheduled Task/Job

                            1
                            T1053

                            Cron

                            1
                            T1053.003

                            Privilege Escalation

                            Boot or Logon Autostart Execution

                            2
                            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

                            Scheduled Task/Job

                            1
                            T1053

                            Cron

                            1
                            T1053.003

                            Defense Evasion

                            Impair Defenses

                            1
                            T1562

                            Credential Access

                            OS Credential Dumping

                            1
                            T1003

                            Proc Filesystem

                            1
                            T1003.007

                            Discovery

                            System Network Configuration Discovery

                            1
                            T1016

                            Internet Connection Discovery

                            1
                            T1016.001

                            System Network Connections Discovery

                            1
                            T1049

                            Lateral Movement

                            Collection

                            Command and Control

                            Exfiltration

                            Impact

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            !infinitech
                            • Path /etc/init.d/!infinitech
                            • Size 98B
                            • SHA256 8146e190e3e75b8913031c0f04ff3e1810e721f91c8a448919ae5f164621a135
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download

                            infinitech.service
                            • Path /etc/systemd/system/infinitech.service
                            • Size 134B
                            • SHA256 d33b3ffb798158ca1aa39cbdb3c9bffd7e73eb5592ae8b83c90600b00b756f39
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download

                            infinitd
                            • Path /usr/local/bin/infinitd
                            • Size 47KB
                            • SHA256 6c15b783dd29f5d28b1dacd9154947931d00f442539c4218c36cc54fbf76b885
                            • MD5 SHA1 SHA512 SSDEEP TLSH
                            Submit Download

                            tmp.RTEItZ
                            • Path /var/spool/cron/crontabs/tmp.RTEItZ
                            • Size 209B
                            • SHA256 d5cff9863ac8154e2edd4b5edeb2eef9aa24b7aae650890cbd2e571fb0eb2bd4
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download