Overview

overview

8

Static

static

8

lianzhanst.exe

windows7_x64

6

lianzhanst.exe

windows10-2004_x64

6

Analysis

  • max time kernel
    125s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    22-05-2022 05:34

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General

  • Target

    lianzhanst.exe

  • Size

    3.6MB

  • MD5

    96e4d115b0edc2d77fb7b447e11fda39

  • SHA1

    b3ddf70a0c29b9ab5163702ae420717f39a3e2a4

  • SHA256

    e5975f25c103fae9d95d4652ec3b9e4c479d445d61c88f08354835b85e4b7546

  • SHA512

    beb44f9d0fdcf281513dc8776a6253d97096ea61c847158cc99eade7b083fcd47c5e91f6d20fb75d2d1cd6e0df10ccd50c281f2d343824f726571a6f2dda3723

Score
6/10
bootkitpersistence

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\lianzhanst.exe
    "C:\Users\Admin\AppData\Local\Temp\lianzhanst.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:4740
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4740 -s 556
      2⤵
      • Program crash
      PID:4920
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4740 -ip 4740
    1⤵
      PID:5068

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Bootkit

    1
    T1067

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/4740-131-0x0000000000400000-0x000000000097E000-memory.dmp
      Filesize

      5.5MB

      Download
    • memory/4740-132-0x0000000000400000-0x000000000097E000-memory.dmp
      Filesize

      5.5MB

      Download
    • memory/4740-130-0x0000000000400000-0x000000000097E000-memory.dmp
      Filesize

      5.5MB

      Download
    • memory/4740-133-0x0000000000400000-0x000000000097E000-memory.dmp
      Filesize

      5.5MB

      Download