Overview

overview

9

Static

static

1

encrypt.sh

ubuntu-18.04-amd64

9

encrypt.sh

debian-9-armhf

9

encrypt.sh

debian-9-mips

9

encrypt.sh

debian-9-mipsel

9

Resubmissions

12/05/2023, 14:01

230512-rbhrgsdc97 6

12/02/2023, 18:04

230212-wnlq5afa3w 9

Analysis

  • max time kernel
    8036s
  • max time network
    111s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20221111-en
  • resource tags

    arch:armhfimage:debian9-armhf-20221111-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    12/02/2023, 18:04

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General

  • Target

    encrypt.sh

  • Size

    3KB

  • MD5

    cf5762eea336cf74a0323d715f72b8b9

  • SHA1

    b40e39adadc5ae4d98fd3900837414797562b1bc

  • SHA256

    ae4b7284a9538c66432f02097c3de14e2253d16b6602c4694753468bc14d7d28

  • SHA512

    35822aafe30d8a14a1ac48d25f6a5eff90c55e18c44df6432bcec962370b6ff1fe06559510090691abb5e4b50594b7067b48f3e582944b07af1c3669fe739c77

Score
9/10

Malware Config

Signatures

  • Writes file to system bin folder 1 TTPs 1 IoCs
  • Reads CPU attributes 1 TTPs 2 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 8 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/encrypt.sh
    /tmp/encrypt.sh
    1⤵
    • Writes file to tmp directory
    PID:361
    • /bin/chmod
      chmod +x /tmp//encrypt
      2⤵
        PID:376
      • /usr/bin/find
        find /usr/lib/vmware -type f -name index.html
        2⤵
          PID:381
        • /bin/mv
          mv /etc/motd /etc/motd1
          2⤵
          • Reads runtime system information
          PID:386
        • /bin/cp
          cp /tmp//motd /etc/motd
          2⤵
          • Reads runtime system information
          PID:387
        • /bin/find
          /bin/find / -name "*.log" -exec /bin/rm -rf "{}" ";"
          2⤵
            PID:389
          • /bin/rm
            /bin/rm -f /store/packages/vmtools.py
            2⤵
              PID:400
            • /bin/touch
              /bin/touch -r /etc/vmware/rhttpproxy/config.xml /etc/vmware/rhttpproxy/endpoints.conf
              2⤵
                PID:401
              • /bin/touch
                /bin/touch -r /etc/vmware/rhttpproxy/config.xml /bin/hostd-probe.sh
                2⤵
                  PID:404
                • /bin/touch
                  /bin/touch -r /etc/vmware/rhttpproxy/config.xml /etc/rc.local.d/local.sh
                  2⤵
                    PID:406
                  • /bin/rm
                    /bin/rm -f /tmp/encrypt /tmp/nohup.out /tmp/index.html /tmp/motd /tmp/public.pem /tmp/archieve.zip
                    2⤵
                    • Writes file to tmp directory
                    PID:408
                  • /bin/sh
                    /bin/sh /bin/auto-backup.sh
                    2⤵
                    • Writes file to system bin folder
                    PID:410
                  • /bin/rm
                    /bin/rm -- /tmp/encrypt.sh
                    2⤵
                    • Writes file to tmp directory
                    PID:412
                  • /etc/init.d/SSH
                    /etc/init.d/SSH start
                    2⤵
                      PID:414
                  • /bin/grep
                    grep "Config File"
                    1⤵
                      PID:366
                    • /usr/bin/awk
                      awk "{print \$3}"
                      1⤵
                        PID:367
                      • /bin/grep
                        grep vmx
                        1⤵
                          PID:374
                        • /bin/ps
                          ps
                          1⤵
                          • Reads CPU attributes
                          • Reads runtime system information
                          PID:373
                        • /usr/bin/awk
                          awk "{print \$2}"
                          1⤵
                            PID:375
                          • /bin/grep
                            grep /vmfs/volumes/
                            1⤵
                              PID:379
                            • /usr/bin/awk
                              awk "-F " "{print \$2}"
                              1⤵
                                PID:380
                              • /bin/ps
                                /bin/ps
                                1⤵
                                • Reads CPU attributes
                                • Reads runtime system information
                                PID:391
                              • /bin/grep
                                /bin/grep encrypt
                                1⤵
                                  PID:392
                                • /bin/grep
                                  /bin/grep -v grep
                                  1⤵
                                    PID:393
                                  • /bin/wc
                                    /bin/wc -l
                                    1⤵
                                      PID:394
                                    • /bin/vmware
                                      /bin/vmware -l
                                      1⤵
                                        PID:396
                                      • /bin/grep
                                        /bin/grep " 7."
                                        1⤵
                                          PID:397
                                        • /bin/wc
                                          /bin/wc -l
                                          1⤵
                                            PID:398

                                          Network

                                                MITRE ATT&CK Enterprise v6

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