Overview

overview

10

Static

static

VLTKNhatRac.exe

windows7_x64

10

VLTKNhatRac.exe

windows10-2004_x64

6

Analysis

  • max time kernel
    57s
  • max time network
    97s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    19-05-2022 02:23

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General

  • Target

    VLTKNhatRac.exe

  • Size

    1.1MB

  • MD5

    30787a1d67f7c18aae5a86b3e2cdc139

  • SHA1

    d8b4ea372a6e5483470bf0528e3e6260f4b9d2c7

  • SHA256

    dd3ff175cfd4d4067b2a71f8121a1594dfb45741f08fe577a5edce54d33859f4

  • SHA512

    d670d4913036808b32d573f786b061fa8d6c055f710b629c0700367004d01cba03e7373c2d778cde5e2d744bc8a6fbdb4081ab3b095d937424840d429b054e44

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\VLTKNhatRac.exe
    "C:\Users\Admin\AppData\Local\Temp\VLTKNhatRac.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of AdjustPrivilegeToken
    PID:1836

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/1836-54-0x0000000000B90000-0x0000000000CA6000-memory.dmp
    Filesize

    1.1MB

    Download
  • memory/1836-55-0x0000000000510000-0x000000000051A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/1836-56-0x0000000075F61000-0x0000000075F63000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1836-57-0x0000000004A15000-0x0000000004A26000-memory.dmp
    Filesize

    68KB

    Download