Overview

overview

7

Static

static

5

superior.arm4

debian-12-armhf

7

Analysis

  • user interaction
    yes
  • max time kernel
    37s
  • max time network
    37s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian12-armhf-20260513-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    24/10/2026, 04:24

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General

  • Target
    superior.arm4
  • Size 623KB
  • Sample261024-e1vq5asvct
  • SHA256 e73de60f8d372c305cc388ae2e8636ea8467b1f9f563ca140ec409ffc77df163
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
antivmcredential_accessdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationupx

Malware Config

Signatures

  • Deletes Audit logs 1 TTPs 1 IoCs

    Deletes logs related to the Linux Audit framework.

    defense_evasion
  • Traces itself 1 IoCs

    Traces itself to prevent debugging attempts

  • Checks hardware identifiers (DMI) 1 TTPs 1 IoCs

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

    antivm
  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    executionpersistenceprivilege_escalation
  • Deletes log files 1 TTPs 5 IoCs

    Deletes log files on the 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 MAC address of network interface 2 TTPs 4 IoCs

    Fetches the MAC address of active network interfaces. May be used to detect known values for hypervisors.

    defense_evasiondiscovery
  • Write file to user bin folder 1 IoCs
    persistence
  • Reads process memory 1 TTPs 64 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
  • Changes its process name 7 IoCs
  • Checks CPU configuration 1 TTPs 1 IoCs

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

    antivm
  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Enumerates kernel/hardware configuration 1 TTPs 9 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 shm directory 6 IoCs

    Malware can drop malicious files in the shm directory which will run directly from RAM.

  • Writes file to tmp directory 64 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/superior.arm4
    /tmp/superior.arm4
    1⤵
    • Deletes Audit logs
    • Traces itself
    • Checks hardware identifiers (DMI)
    • Deletes log files
    • Enumerates active TCP sockets
    • Reads MAC address of network interface
    • Write file to user bin folder
    • Reads process memory
    • Changes its process name
    • Checks CPU configuration
    • Reads system network configuration
    • Enumerates kernel/hardware configuration
    • Reads runtime system information
    • Writes file to shm directory
    • Writes file to tmp directory
    PID:787
    • /bin/sh
      sh -c "systemctl enable csx0vtxnbfu.service >/dev/null 2>&1"
      2⤵
        PID:895
        • /usr/bin/systemctl
          systemctl enable csx0vtxnbfu.service
          3⤵
          • Reads runtime system information
          PID:896
      • /bin/sh
        sh -c "(crontab -l 2>/dev/null | grep -qF '/usr/local/bin/sxt9q5j0neh8p0x') || { (crontab -l 2>/dev/null; echo '@reboot /usr/local/bin/sxt9q5j0neh8p0x &') | crontab -; } >/dev/null 2>&1"
        2⤵
          PID:918
          • /usr/bin/grep
            grep -qF /usr/local/bin/sxt9q5j0neh8p0x
            3⤵
            • Reads runtime system information
            PID:921
          • /usr/bin/crontab
            crontab -l
            3⤵
              PID:920
            • /usr/bin/crontab
              crontab -
              3⤵
              • Creates/modifies Cron job
              PID:923
            • /usr/bin/crontab
              crontab -l
              3⤵
                PID:924
            • /bin/sh
              sh -c "nvidia-smi -pm 1 >/dev/null 2>&1"
              2⤵
                PID:925
              • /bin/sh
                sh -c "udevadm control --reload-rules 2>/dev/null"
                2⤵
                  PID:926
                  • /usr/bin/udevadm
                    udevadm control --reload-rules
                    3⤵
                    • Reads runtime system information
                    PID:927
                • /bin/sh
                  sh -c "which clang >/dev/null 2>&1"
                  2⤵
                    PID:928
                    • /usr/bin/which
                      which clang
                      3⤵
                        PID:929

                  Network

                        MITRE ATT&CK Enterprise v16

                        Replay Monitor

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                        Downloads

                        .9552a4c4.pids.tmp
                        • Path /dev/shm/.9552a4c4.pids.tmp
                        • Size 8B
                        • SHA256 add1ce05758c7a54ba8faf065bd1f87368aeae42832b06a84616ac81f5b66181
                        • MD5 SHA1 SHA512
                        Submit Download

                        .9552a4c4.tmp
                        • Path /dev/shm/.9552a4c4.tmp
                        • Size 15B
                        • SHA256 b10cbe604273231a50373cf3ce7a0fe527e21c8348fbce17068a390390c13f3c
                        • MD5 SHA1 SHA512
                        Submit Download

                        .9552a4c4.tmp
                        • Path /dev/shm/.9552a4c4.tmp
                        • Size 15B
                        • SHA256 ae77204bf2230d9be3140656d449c16a0bac3b82a2e568f44fe765faadad45b6
                        • MD5 SHA1 SHA512
                        Submit Download

                        .9552a4c4.tmp
                        • Path /dev/shm/.9552a4c4.tmp
                        • Size 15B
                        • SHA256 3d8316a0a7c7f1ee88cbbcac202d745b807926c0c548dce625b5686fae8b1db6
                        • MD5 SHA1 SHA512
                        Submit Download

                        .9552a4c4.tmp
                        • Path /dev/shm/.9552a4c4.tmp
                        • Size 15B
                        • SHA256 95879283a5c78807324e2853cf1514dcf2bcd14176d6850e9b7acce194b78baa
                        • MD5 SHA1 SHA512
                        Submit Download

                        .bot_lock
                        • Path /tmp/.bot_lock
                        • Size 3B
                        • SHA256 fc091d39524c9d4b5b11f84f9132996a94ca01c9816d2db3b866bef1b0699d91
                        • MD5 SHA1 SHA512
                        Submit Download

                        .c2.conf
                        • Path /tmp/.c2.conf
                        • Size 139B
                        • SHA256 8fc0594745ae8e9716413fc5778c87ad38a24fb256db2ee994c9f46ed10f59e0
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        .credentials
                        • Path /tmp/.credentials
                        • Size 113B
                        • SHA256 95e35b3b99d06387cc27a5226b1446823375bf1cc9d40ae2b8c0b204972e30dc
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        .note
                        • Path /tmp/.note
                        • Size 120B
                        • SHA256 d9c85705abac11166f82e6a569bb2bd1f58c6156b38fc816644110ef81ee81c7
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        .oplog
                        • Path /tmp/.oplog
                        • Size 272B
                        • SHA256 99d2fb3b4bc971b9f504297a2a9d14c62a1ebe08232984665aa96bfeb3c0f4ca
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        任务清单.txt
                        • Path /tmp/任务清单.txt
                        • Size 221B
                        • SHA256 573d72a94318b911e229f159757408bdef2c8473817282e36abefc54ed82bdc0
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        节点配置.conf
                        • Path /tmp/节点配置.conf
                        • Size 122B
                        • SHA256 a6d9d8133fc4bf36b76664d0993b2e1ef081bac701ce1cfae2a933f646efab9a
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download

                        sxt9q5j0neh8p0x
                        • Path /usr/local/bin/sxt9q5j0neh8p0x
                        • Size 623KB
                        • SHA256 e73de60f8d372c305cc388ae2e8636ea8467b1f9f563ca140ec409ffc77df163
                        • MD5 SHA1 SHA512 SSDEEP TLSH
                        Submit Download

                        tmp.lJypXo
                        • Path /var/spool/cron/crontabs/tmp.lJypXo
                        • Size 216B
                        • SHA256 41ec2641ea1ad36b5ce4623d54801bc40ff21348b2214dfa6c463a8c4a4f9fff
                        • MD5 SHA1 SHA512 TLSH
                        Submit Download