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Overview

overview

9

Static

static

1

2.sh

ubuntu-18.04-amd64

9

2.sh

debian-9-armhf

9

2.sh

debian-9-mips

9

2.sh

debian-9-mipsel

9

Resubmissions

09/09/2024, 16:59

240909-vhqbpa1frf 9

02/10/2023, 07:19

231002-h5hh5sga9y 9

Analysis

  • max time kernel
    2s
  • max time network
    124s
  • platform
    debian-9_mipsel
  • resource
    debian9-mipsel-20230831-en
  • resource tags

    arch:mipselimage:debian9-mipsel-20230831-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipselsystem
  • submitted
    02/10/2023, 07:19

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General

  • Target

    2.sh

  • Size

    18KB

  • MD5

    77e3046e6271f2871ed34497a06ce770

  • SHA1

    b0a6bd77c3371ff4be33ba5070aa486204853b0b

  • SHA256

    cda6a3a92d746c0be30c1809c15b2f5e344b724dcecbda7729234a798fb5218b

  • SHA512

    49072c85b82cd494a7fa55172bc4f012b4f63e096d075cd8ec15aa8f037443408ce516e885f1c54cf65ee617a807adaf2634d3508017a790be40012ba819c7b5

  • SSDEEP

    192:7jQ04oGAuVvZ7U3voFUzcF1pNbHqbbA8g5ugdjqDWThOAaI1cnUeGy3K1ywOK:7jpmVCYUw3MbA5WS09QuUeGyJTK

Score
9/10
persistence

Malware Config

Signatures

  • Modifies the dynamic linker configuration file 1 TTPs 1 IoCs

    Malware can modify the configuration file of the dynamic linker to preload malicous libraries with every executed process.

    persistence
  • Flushes firewall rules 1 IoCs

    Flushes/ disables firewall rules inside the Linux kernel.

  • Attempts to change immutable files 3 IoCs

    Modifies inode attributes on the filesystem to allow changing of immutable files.

  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Reads CPU attributes 1 TTPs 3 IoCs
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

Processes

  • /tmp/2.sh
    /tmp/2.sh
    1⤵
    • Modifies the dynamic linker configuration file
    PID:341
    • /bin/mkdir
      mkdir -p /tmp /var/tmp
      2⤵
        PID:342
      • /bin/chmod
        chmod 1777 /tmp /var/tmp
        2⤵
          PID:346
        • /sbin/sysctl
          sysctl -w "fs.file-max=500000"
          2⤵
          • Reads CPU attributes
          • Reads runtime system information
          PID:348
        • /bin/mount
          mount -o "remount,exec" /tmp
          2⤵
            PID:349
          • /bin/mount
            mount -o "remount,exec" /var/tmp
            2⤵
              PID:350
            • /sbin/iptables
              iptables -P INPUT ACCEPT
              2⤵
                PID:352
              • /sbin/iptables
                iptables -P OUTPUT ACCEPT
                2⤵
                  PID:355
                • /sbin/iptables
                  iptables -P FORWARD ACCEPT
                  2⤵
                    PID:356
                  • /sbin/iptables
                    iptables -F
                    2⤵
                    • Flushes firewall rules
                    PID:357
                  • /usr/bin/chattr
                    chattr -ia /etc/ld.so.preload
                    2⤵
                    • Attempts to change immutable files
                    PID:358
                  • /usr/bin/id
                    id -u
                    2⤵
                      PID:359
                    • /bin/ps
                      ps aux
                      2⤵
                      • Reads CPU attributes
                      • Reads runtime system information
                      PID:360
                    • /bin/grep
                      grep -i "[a]liyun"
                      2⤵
                      • Attempts to change immutable files
                      PID:361
                    • /bin/ps
                      ps aux
                      2⤵
                      • Reads CPU attributes
                      • Reads runtime system information
                      PID:362
                    • /bin/grep
                      grep -i "[y]unjing"
                      2⤵
                      • Attempts to change immutable files
                      PID:363
                    • /bin/uname
                      uname -m
                      2⤵
                        PID:368
                      • /bin/uname
                        uname -m
                        2⤵
                          PID:369
                      • /bin/grep
                        grep "bytes of data"
                        1⤵
                          PID:366
                        • /bin/ping
                          ping -c 1 dw.c4kdeliver.top
                          1⤵
                            PID:365
                          • /usr/bin/wc
                            wc -l
                            1⤵
                              PID:367

                            Network

                            MITRE ATT&CK Enterprise v15

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