Overview

overview

10

Static

static

10

97a546c7d0...4fb8cc

ubuntu-20.04-amd64

10

Analysis

  • max time kernel
    2s
  • max time network
    132s
  • platform
    ubuntu-20.04_amd64
  • resource
    ubuntu2004-amd64-20240221-en
  • resource tags

    arch:amd64arch:i386image:ubuntu2004-amd64-20240221-enkernel:5.4.0-169-genericlocale:en-usos:ubuntu-20.04-amd64system
  • submitted
    10-04-2024 12:52

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    97a546c7d08ad34dfab74c9c8a96986c54768c592a8dae521ddcf612a84fb8cc

  • Size

    28KB

  • MD5

    5fda35bd30be1cc21f8e933e41a88d9b

  • SHA1

    8535c3b18a10649b94531c6d9f79750324498e5c

  • SHA256

    97a546c7d08ad34dfab74c9c8a96986c54768c592a8dae521ddcf612a84fb8cc

  • SHA512

    1a0f9a5a5a6d3cdf1b5d71dda8f111e8f6b6d4378d3e1fe4c7797bcea3642fced6dd7ec398b8fbe0a108a4d63d00191ff80893eeeeaebb7b637fb17e41220ec6

  • SSDEEP

    384:kmdtqD0ogKS6afykzoSPAB5f0IbMCfZS3Fz8WdGnzv0iFXkTg3YUq8wz0H:kYtqD0ousSPSHbDRS3aWdgv0iFOUq8HH

Score
10/10
bpfdoorbackdoor

Malware Config

Signatures

  • BPFDoor

    BPFDoor is an evasive Linux backdoor attributed to a Chinese threat actor called Red Menshen.

    backdoorbpfdoor
  • BPFDoor payload 1 IoCs
  • Changes its process name 1 IoCs
  • Creates Raw socket 1 IoCs

    Creates a socket that captures raw packets at the device level

  • Executes dropped EXE 1 IoCs
  • Reads runtime system information 1 IoCs

    Reads data from /proc virtual filesystem.

  • Writes file to shm directory 1 IoCs

    Malware can drop malicious files in the shm directory which will run directly from RAM.

Processes

  • /tmp/97a546c7d08ad34dfab74c9c8a96986c54768c592a8dae521ddcf612a84fb8cc
    /tmp/97a546c7d08ad34dfab74c9c8a96986c54768c592a8dae521ddcf612a84fb8cc
    1⤵
      PID:1479
      • /bin/sh
        sh -c "/bin/rm -f /dev/shm/kdmtmpflush;/bin/cp /tmp/97a546c7d08ad34dfab74c9c8a96986c54768c592a8dae521ddcf612a84fb8cc /dev/shm/kdmtmpflush && /bin/chmod 755 /dev/shm/kdmtmpflush && /dev/shm/kdmtmpflush --init && /bin/rm -f /dev/shm/kdmtmpflush"
        2⤵
          PID:1480
          • /bin/rm
            /bin/rm -f /dev/shm/kdmtmpflush
            3⤵
              PID:1481
            • /bin/cp
              /bin/cp /tmp/97a546c7d08ad34dfab74c9c8a96986c54768c592a8dae521ddcf612a84fb8cc /dev/shm/kdmtmpflush
              3⤵
              • Reads runtime system information
              • Writes file to shm directory
              PID:1482
            • /bin/chmod
              /bin/chmod 755 /dev/shm/kdmtmpflush
              3⤵
                PID:1483
              • /dev/shm/kdmtmpflush
                /dev/shm/kdmtmpflush --init
                3⤵
                • Changes its process name
                • Executes dropped EXE
                PID:1484
              • /bin/rm
                /bin/rm -f /dev/shm/kdmtmpflush
                3⤵
                  PID:1486

            Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • /dev/shm/kdmtmpflush
              Filesize

              28KB

              MD5

              5fda35bd30be1cc21f8e933e41a88d9b

              SHA1

              8535c3b18a10649b94531c6d9f79750324498e5c

              SHA256

              97a546c7d08ad34dfab74c9c8a96986c54768c592a8dae521ddcf612a84fb8cc

              SHA512

              1a0f9a5a5a6d3cdf1b5d71dda8f111e8f6b6d4378d3e1fe4c7797bcea3642fced6dd7ec398b8fbe0a108a4d63d00191ff80893eeeeaebb7b637fb17e41220ec6

              Download Submit