Overview

overview

7

Static

static

5

1d316bbb98...f6.elf

debian-12-mipsel

7

Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    debian-12_mipsel
  • resource
    debian12-mipsel-20260513-en
  • resource tags

    arch:mipselimage:debian12-mipsel-20260513-enkernel:6.1.0-17-4kc-maltalocale:en-usos:debian-12-mipselsystem
  • submitted
    12/08/2026, 04:34

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General

  • Target
    1d316bbb9849e930792df647a701e7897519b278764f2efdfe2a9e6496e457f6.elf
  • Size 64KB
  • Sample260812-e7ctwsae34
  • SHA256 1d316bbb9849e930792df647a701e7897519b278764f2efdfe2a9e6496e457f6
  • 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 58 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/1d316bbb9849e930792df647a701e7897519b278764f2efdfe2a9e6496e457f6.elf
    /tmp/1d316bbb9849e930792df647a701e7897519b278764f2efdfe2a9e6496e457f6.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:802
    • /bin/sh
      sh -c "systemctl enable infinitech >/dev/null 2>&1"
      2⤵
        PID:808
      • /bin/sh
        sh -c "systemctl start infinitech >/dev/null 2>&1"
        2⤵
          PID:811
        • /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:813
            • /usr/bin/crontab
              crontab -
              3⤵
              • Creates/modifies Cron job
              PID:816
            • /usr/bin/crontab
              crontab -l
              3⤵
                PID:817
            • /bin/sh
              sh -c "update-rc.d infinitech defaults >/dev/null 2>&1"
              2⤵
                PID:822
                • /usr/sbin/update-rc.d
                  update-rc.d infinitech defaults
                  3⤵
                    PID:827

              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

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                    Downloads

                    infinitech
                    • Path /etc/init.d/infinitech
                    • Size 99B
                    • SHA256 77c6a284c110432310b97f7cfae70134fa7160af6ae3541c21c69c65430cd24b
                    • 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 64KB
                    • SHA256 1d316bbb9849e930792df647a701e7897519b278764f2efdfe2a9e6496e457f6
                    • MD5 SHA1 SHA512 SSDEEP TLSH
                    Submit Download

                    tmp.fr4Biq
                    • Path /var/spool/cron/crontabs/tmp.fr4Biq
                    • Size 209B
                    • SHA256 f981248a51e9c3492ab3fbd3d986527d88c18af07c36ed1981dcba97968ba298
                    • MD5 SHA1 SHA512 TLSH
                    Submit Download