Overview

overview

10

Static

static

VLTKBacdau.exe

windows7_x64

10

VLTKBacdau.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    138s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    22-05-2022 05:51

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General

  • Target

    VLTKBacdau.exe

  • Size

    1.4MB

  • MD5

    772379abf7c754602d5f93a644aed0c8

  • SHA1

    312585e17ba461be0fbb5a98a1552be9017ffe8e

  • SHA256

    2f39e7665ba9980af2ca8e51497744b10a6adeb19d41eaa5e27ec301e19ca6af

  • SHA512

    d0bdf39ace3b2f6911773ae579dc366dc7a89ef6a2a17be2e4805f85ec775697bae007f6bb3066af5a6aa40c06da1c0eac2d0a8c911b71c4b33a719a62426bab

Score
10/10
bootkitpersistence

Malware Config

Extracted

Credentials

  • Protocol:     ftp
  • Host:
    112.213.89.26
  • Port:
    21
  • Username:
    kimmaosuvuong@kimyen.club
  • Password:
    https://www.youtube.com/watch?v=Z_udu2fuWKU&t=199s

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
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VLTKBacdau.exe
    "C:\Users\Admin\AppData\Local\Temp\VLTKBacdau.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of AdjustPrivilegeToken
    PID:1948

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/1948-54-0x00000000003D0000-0x000000000053E000-memory.dmp
    Filesize

    1.4MB

    Download
  • memory/1948-55-0x0000000000330000-0x0000000000340000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1948-56-0x0000000076571000-0x0000000076573000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1948-57-0x00000000049E5000-0x00000000049F6000-memory.dmp
    Filesize

    68KB

    Download