Resubmissions

11/04/2025, 21:31

250411-1cz7lazpx8 10

Analysis

  • max time kernel
    29s
  • max time network
    2s
  • platform
    ubuntu-24.04_amd64
  • resource
    ubuntu2404-amd64-20250410-en
  • resource tags

    arch:amd64arch:i386image:ubuntu2404-amd64-20250410-enkernel:6.8.0-31-genericlocale:en-usos:ubuntu-24.04-amd64system
  • submitted
    11/04/2025, 21:31

General

  • Target

    The-MALWARE-Repo-master/Botnets/FritzFrog/041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

  • Size

    8.7MB

  • MD5

    76fe4fdd628218f630ba50f91ceba852

  • SHA1

    6e90f2fe619597115e5b8dd8b0d1fb0c8ad33fa4

  • SHA256

    041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

  • SHA512

    7956505ae0d8479a92ddf97bb09a757566ef526934ee06b4273f0fc450e4da9204808ffa4f4674f4e6e313eb718a7c65f258ef8d23b9769b8aa12d47610d8011

  • SSDEEP

    98304:f27or8Dynb9c4EHv9/fW/NQXPvTCaedHuaJE3fSdCnKg27Xk:f27or8DyO4UnwQfvTCXdHua4No

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 runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 4 IoCs

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

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
    /tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
    1⤵
    • Adds new SSH keys
    • Deletes itself
    • Deletes log files
    • Reads runtime system information
    • Writes file to tmp directory
    PID:2019
    • /usr/bin/uname
      uname -a
      2⤵
        PID:2035
      • /usr/bin/cat
        cat /proc/cpuinfo
        2⤵
        • Checks CPU configuration
        PID:2036
      • /usr/bin/cat
        cat /etc/issue
        2⤵
          PID:2038
        • /usr/bin/free
          free -m
          2⤵
            PID:2039
          • /usr/bin/uptime
            uptime
            2⤵
            • Virtualization/Sandbox Evasion: Time Based Evasion
            • Reads runtime system information
            PID:2040
          • /usr/bin/journalctl
            journalctl -S "@0" -u sshd
            2⤵
              PID:2041
            • /usr/bin/cat
              cat "/var/log/auth*"
              2⤵
                PID:2043
              • /usr/bin/zcat
                zcat "/var/log/auth*"
                2⤵
                  PID:2044
                • /usr/local/sbin/gzip
                  gzip -cd "/var/log/auth*"
                  2⤵
                  • System Network Configuration Discovery
                  PID:2044
                • /usr/local/bin/gzip
                  gzip -cd "/var/log/auth*"
                  2⤵
                  • System Network Configuration Discovery
                  PID:2044
                • /usr/sbin/gzip
                  gzip -cd "/var/log/auth*"
                  2⤵
                  • System Network Configuration Discovery
                  PID:2044
                • /usr/bin/gzip
                  gzip -cd "/var/log/auth*"
                  2⤵
                  • System Network Configuration Discovery
                  PID:2044
                • /usr/bin/free
                  free -m
                  2⤵
                    PID:2045
                  • /usr/bin/uptime
                    uptime
                    2⤵
                    • Virtualization/Sandbox Evasion: Time Based Evasion
                    PID:2046
                  • /usr/bin/free
                    free -m
                    2⤵
                      PID:2047
                    • /usr/bin/uptime
                      uptime
                      2⤵
                      • Virtualization/Sandbox Evasion: Time Based Evasion
                      PID:2048

                  Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • /tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc

                    Filesize

                    8.7MB

                    MD5

                    76fe4fdd628218f630ba50f91ceba852

                    SHA1

                    6e90f2fe619597115e5b8dd8b0d1fb0c8ad33fa4

                    SHA256

                    041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

                    SHA512

                    7956505ae0d8479a92ddf97bb09a757566ef526934ee06b4273f0fc450e4da9204808ffa4f4674f4e6e313eb718a7c65f258ef8d23b9769b8aa12d47610d8011