Resubmissions

11/04/2025, 21:31

250411-1cz7lazpx8 10

Analysis

  • max time kernel
    29s
  • max time network
    34s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240508-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240508-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    11/04/2025, 21:31

General

  • Target

    The-MALWARE-Repo-master/Botnets/FritzFrog/90b61cc77bb2d726219fd00ae2d0ecdf6f0fe7078529e87b7ec8e603008232d5

  • Size

    8.7MB

  • MD5

    100bff2f4ee4d88b005bb016daa04fe6

  • SHA1

    36e5f8f70890601aa2adaffb203afd06516097f0

  • SHA256

    90b61cc77bb2d726219fd00ae2d0ecdf6f0fe7078529e87b7ec8e603008232d5

  • SHA512

    a1cb52bc6edaa7f8bb216d2a5f3deb0b8468c64b43931ef570c05e6a9872c63f00aff50d69686fdc2ea25d3d83da4bf9d78f5e6910643163570d0bd6279c6e16

  • SSDEEP

    98304:wRINZeR9Zy031d3eDi2dZQT3/S1GVlOre53ziKZ7Xk:wRINZeR9Zx1CFDQD/SQVlOrKr

Malware Config

Signatures

  • Adds new SSH keys 1 TTPs 1 IoCs

    Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.

  • Deletes itself 1 IoCs
  • Deletes log files 1 TTPs 1 IoCs

    Deletes log files on the system.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Virtualization/Sandbox Evasion: Time Based Evasion 1 TTPs 3 IoCs

    Adversaries may detect and evade virtualized environments and sandboxes.

  • Checks CPU configuration 1 TTPs 1 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

  • Reads CPU attributes 1 TTPs 6 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 1 IoCs

    Adversaries may gather information about the network configuration of a system.

Processes

  • /tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/90b61cc77bb2d726219fd00ae2d0ecdf6f0fe7078529e87b7ec8e603008232d5
    /tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/90b61cc77bb2d726219fd00ae2d0ecdf6f0fe7078529e87b7ec8e603008232d5
    1⤵
    • Adds new SSH keys
    • Deletes itself
    • Deletes log files
    • Reads runtime system information
    PID:1505
    • /bin/uname
      uname -a
      2⤵
        PID:1516
      • /bin/cat
        cat /proc/cpuinfo
        2⤵
        • Checks CPU configuration
        PID:1517
      • /bin/cat
        cat /etc/issue
        2⤵
          PID:1518
        • /usr/bin/free
          free -m
          2⤵
          • Reads CPU attributes
          PID:1519
        • /usr/bin/uptime
          uptime
          2⤵
          • Virtualization/Sandbox Evasion: Time Based Evasion
          • Reads CPU attributes
          • Reads runtime system information
          PID:1520
        • /bin/journalctl
          journalctl -S "@0" -u sshd
          2⤵
            PID:1525
          • /bin/cat
            cat "/var/log/auth*"
            2⤵
              PID:1526
            • /bin/zcat
              zcat "/var/log/auth*"
              2⤵
                PID:1527
              • /bin/gzip
                gzip -cd "/var/log/auth*"
                2⤵
                • System Network Configuration Discovery
                PID:1527
              • /usr/bin/free
                free -m
                2⤵
                • Reads CPU attributes
                PID:1528
              • /usr/bin/uptime
                uptime
                2⤵
                • Virtualization/Sandbox Evasion: Time Based Evasion
                • Reads CPU attributes
                PID:1529
              • /usr/bin/free
                free -m
                2⤵
                • Reads CPU attributes
                • Reads runtime system information
                PID:1530
              • /usr/bin/uptime
                uptime
                2⤵
                • Virtualization/Sandbox Evasion: Time Based Evasion
                • Reads CPU attributes
                • Reads runtime system information
                PID:1531

            Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • /root/.ssh/authorized_keys

              Filesize

              381B

              MD5

              9da18d38b6dd4c4aa84642378d63fa89

              SHA1

              c5a976691e4b5963b5e760044f22cc9685268db6

              SHA256

              43062900b2539d8d1f67f30fa7042c56b53541f63875b5f0de5d8fbde0e0a8bf

              SHA512

              222b20b5b2ff8956c13dbac1f8d3f81435613b751913d65f4c4082ea9c1a7c8ae91be17a24ef4ae0c708bfe09daab552bb209615714d70acfaaed89c536c71b3