Overview

overview

8

Static

static

8

download.zip

debian-9-mips

8

Analysis

  • max time kernel
    23s
  • max time network
    25s
  • platform
    debian-9_mips
  • resource
    debian9-mipsbe-20240611-en
  • resource tags

    arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
  • submitted
    13/12/2024, 19:21

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General

  • Target

    download.zip

  • Size

    132KB

  • MD5

    a73ddd6ec22462db955439f665cad4e6

  • SHA1

    ac6962542a4b23ac13bddff22f8df9aeb702ef12

  • SHA256

    b5cf68c7cb5bb2d21d60bf6654926f61566d95bfd7c9f9e182d032f1da5b4605

  • SHA512

    92a52f68a7324c4d5876e1f7e2cb87d14b8604b057ceee2e537815568faa96abf576a22111c5c976eff72ab9015f1261b2331d4b4d711f4e62c8eb403c2377aa

  • SSDEEP

    3072:2glZ3FtCKXhkmHtZ9TEKzjfj/WMngyIfsJ0F7xPtoM:2IIKXhZtL7jOTyIG87Xl

Score
8/10
defense_evasiondiscovery

Malware Config

Signatures

  • Contacts a large (1147) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

    discovery
  • Modifies Watchdog functionality 1 TTPs 2 IoCs

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

    defense_evasion
  • 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

  • Reads system routing table 1 TTPs 1 IoCs

    Gets active network interfaces from /proc virtual filesystem.

    discovery
  • Writes file to system bin folder 2 IoCs
  • Changes its process name 1 IoCs
  • Reads system network configuration 1 TTPs 3 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • System Network Configuration Discovery 1 TTPs 8 IoCs

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

    discovery
  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/download.zip
    /tmp/download.zip
    1⤵
    • Modifies Watchdog functionality
    • Enumerates active TCP sockets
    • Reads system routing table
    • Writes file to system bin folder
    • Changes its process name
    • Reads system network configuration
    • Reads runtime system information
    • System Network Configuration Discovery
    • Writes file to tmp directory
    PID:707
    • /bin/sh
      sh -c "killall -9 telnetd utelnetd scfgmgr"
      2⤵
        PID:711
        • /usr/bin/killall
          killall -9 telnetd utelnetd scfgmgr
          3⤵
          • Reads runtime system information
          PID:713
      • /bin/sh
        sh -c "iptables -I INPUT -p tcp --destination-port 40595 -j ACCEPT"
        2⤵
          PID:789
          • /sbin/iptables
            iptables -I INPUT -p tcp --destination-port 40595 -j ACCEPT
            3⤵
              PID:790
          • /bin/sh
            sh -c "iptables -I OUTPUT -p tcp --source-port 40595 -j ACCEPT"
            2⤵
            • System Network Configuration Discovery
            PID:793
            • /sbin/iptables
              iptables -I OUTPUT -p tcp --source-port 40595 -j ACCEPT
              3⤵
                PID:796
            • /bin/sh
              sh -c "iptables -I PREROUTING -t nat -p tcp --destination-port 40595 -j ACCEPT"
              2⤵
                PID:797
                • /sbin/iptables
                  iptables -I PREROUTING -t nat -p tcp --destination-port 40595 -j ACCEPT
                  3⤵
                    PID:798
                • /bin/sh
                  sh -c "iptables -I POSTROUTING -t nat -p tcp --source-port 40595 -j ACCEPT"
                  2⤵
                  • System Network Configuration Discovery
                  PID:803
                  • /sbin/iptables
                    iptables -I POSTROUTING -t nat -p tcp --source-port 40595 -j ACCEPT
                    3⤵
                      PID:804
                  • /bin/sh
                    sh -c "iptables -I INPUT -p tcp --dport 40595 -j ACCEPT"
                    2⤵
                      PID:805
                      • /sbin/iptables
                        iptables -I INPUT -p tcp --dport 40595 -j ACCEPT
                        3⤵
                          PID:806
                      • /bin/sh
                        sh -c "iptables -I OUTPUT -p tcp --sport 40595 -j ACCEPT"
                        2⤵
                        • System Network Configuration Discovery
                        PID:807
                        • /sbin/iptables
                          iptables -I OUTPUT -p tcp --sport 40595 -j ACCEPT
                          3⤵
                            PID:808
                        • /bin/sh
                          sh -c "iptables -I PREROUTING -t nat -p tcp --dport 40595 -j ACCEPT"
                          2⤵
                            PID:809
                            • /sbin/iptables
                              iptables -I PREROUTING -t nat -p tcp --dport 40595 -j ACCEPT
                              3⤵
                                PID:810
                            • /bin/sh
                              sh -c "iptables -I POSTROUTING -t nat -p tcp --sport 40595 -j ACCEPT"
                              2⤵
                              • System Network Configuration Discovery
                              PID:811
                              • /sbin/iptables
                                iptables -I POSTROUTING -t nat -p tcp --sport 40595 -j ACCEPT
                                3⤵
                                  PID:812
                              • /bin/sh
                                sh -c "iptables -I INPUT -p tcp --destination-port 22 -j DROP"
                                2⤵
                                  PID:813
                                  • /sbin/iptables
                                    iptables -I INPUT -p tcp --destination-port 22 -j DROP
                                    3⤵
                                      PID:814
                                  • /bin/sh
                                    sh -c "iptables -I INPUT -p tcp --destination-port 23 -j DROP"
                                    2⤵
                                      PID:815
                                      • /sbin/iptables
                                        iptables -I INPUT -p tcp --destination-port 23 -j DROP
                                        3⤵
                                          PID:816
                                      • /bin/sh
                                        sh -c "iptables -I INPUT -p tcp --destination-port 2323 -j DROP"
                                        2⤵
                                          PID:817
                                          • /sbin/iptables
                                            iptables -I INPUT -p tcp --destination-port 2323 -j DROP
                                            3⤵
                                              PID:818
                                          • /bin/sh
                                            sh -c "iptables -I OUTPUT -p tcp --source-port 22 -j DROP"
                                            2⤵
                                            • System Network Configuration Discovery
                                            PID:819
                                            • /sbin/iptables
                                              iptables -I OUTPUT -p tcp --source-port 22 -j DROP
                                              3⤵
                                                PID:820
                                            • /bin/sh
                                              sh -c "iptables -I OUTPUT -p tcp --source-port 23 -j DROP"
                                              2⤵
                                              • System Network Configuration Discovery
                                              PID:821
                                              • /sbin/iptables
                                                iptables -I OUTPUT -p tcp --source-port 23 -j DROP
                                                3⤵
                                                  PID:822
                                              • /bin/sh
                                                sh -c "iptables -I OUTPUT -p tcp --source-port 2323 -j DROP"
                                                2⤵
                                                • System Network Configuration Discovery
                                                PID:823
                                                • /sbin/iptables
                                                  iptables -I OUTPUT -p tcp --source-port 2323 -j DROP
                                                  3⤵
                                                    PID:824

                                              Network

                                              MITRE ATT&CK Enterprise v15

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