Overview

overview

7

Static

static

5

superior.arm4

debian-12-armhf

7

Analysis

  • user interaction
    yes
  • max time kernel
    7s
  • max time network
    9s
  • platform
    debian-12_armhf
  • resource
    debian12-armhf-20260127-en
  • resource tags

    arch:armhfimage:debian12-armhf-20260127-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
  • submitted
    24/10/2026, 04:20

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    superior.arm4
  • Size 623KB
  • Sample261024-ex92msfx4t
  • 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 running processes

    Discovers information about currently running processes on the system

  • Write file to user bin folder 1 IoCs
    persistence
  • Reads process memory 1 TTPs 38 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 1 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Enumerates kernel/hardware configuration 1 TTPs 2 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 9 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
    • 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 46qznsrw22e.service >/dev/null 2>&1"
      2⤵
        PID:892
        • /usr/bin/systemctl
          systemctl enable 46qznsrw22e.service
          3⤵
            PID:893
        • /bin/sh
          sh -c "(crontab -l 2>/dev/null | grep -qF '/usr/local/bin/eykdju3vq4lz1uk') || { (crontab -l 2>/dev/null; echo '@reboot /usr/local/bin/eykdju3vq4lz1uk &') | crontab -; } >/dev/null 2>&1"
          2⤵
            PID:915
            • /usr/bin/grep
              grep -qF /usr/local/bin/eykdju3vq4lz1uk
              3⤵
                PID:918
              • /usr/bin/crontab
                crontab -l
                3⤵
                  PID:917
                • /usr/bin/crontab
                  crontab -
                  3⤵
                  • Creates/modifies Cron job
                  PID:920
                • /usr/bin/crontab
                  crontab -l
                  3⤵
                    PID:921
                • /bin/sh
                  sh -c "nvidia-smi -pm 1 >/dev/null 2>&1"
                  2⤵
                    PID:922
                  • /bin/sh
                    sh -c "udevadm control --reload-rules 2>/dev/null"
                    2⤵
                      PID:923
                      • /usr/bin/udevadm
                        udevadm control --reload-rules
                        3⤵
                        • Reads runtime system information
                        PID:924
                    • /bin/sh
                      sh -c "which clang >/dev/null 2>&1"
                      2⤵
                        PID:925
                        • /usr/bin/which
                          which clang
                          3⤵
                            PID:926

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            .326cd1e7.pids.tmp
                            • Path /dev/shm/.326cd1e7.pids.tmp
                            • Size 8B
                            • SHA256 8212c73f97075986ba45969b25d51f6d0296752674fdf30362c598f22554ff64
                            • MD5 SHA1 SHA512
                            Submit Download

                            .326cd1e7.tmp
                            • Path /dev/shm/.326cd1e7.tmp
                            • Size 15B
                            • SHA256 0843c86267bb186454fa3584de8a6ca330159af9fab457673e7eeffe58b5e8e4
                            • MD5 SHA1 SHA512
                            Submit Download

                            .326cd1e7.tmp
                            • Path /dev/shm/.326cd1e7.tmp
                            • Size 15B
                            • SHA256 d7354865dae39cb52c3371da78b9f32112c6413702e21833b5dc88bcfc23472a
                            • MD5 SHA1 SHA512
                            Submit Download

                            .326cd1e7.tmp
                            • Path /dev/shm/.326cd1e7.tmp
                            • Size 15B
                            • SHA256 56e9d5e4582a460b88a1a82dddb13bec1d1e8821fe4d87f1a61ced8f143d8a5d
                            • 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

                            eykdju3vq4lz1uk
                            • Path /usr/local/bin/eykdju3vq4lz1uk
                            • Size 623KB
                            • SHA256 e73de60f8d372c305cc388ae2e8636ea8467b1f9f563ca140ec409ffc77df163
                            • MD5 SHA1 SHA512 SSDEEP TLSH
                            Submit Download

                            tmp.fS2ZQx
                            • Path /var/spool/cron/crontabs/tmp.fS2ZQx
                            • Size 216B
                            • SHA256 73200f4d06c86bfe056b5d0a23d4e58f579333867e2f036f795fad374cd16913
                            • MD5 SHA1 SHA512 TLSH
                            Submit Download