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Overview

overview

8

Static

static

de44201d7d...74.exe

windows7-x64

8

de44201d7d...74.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    93s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 18:43

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General

  • Target

    de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074.exe

  • Size

    841KB

  • MD5

    af5fa50b86feb6b2b21fb291a7e04a4f

  • SHA1

    a2c632df5c8946012bd9c35ba9f95f8c3fc6381f

  • SHA256

    de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074

  • SHA512

    fc974d14a54db05cd8466f5c30627242fd75ed77f2b343c0bfa7d0f3bdae4a319f23d8a0484c12ea53f30440afb24c16db536f3e0cee5850afcf70d3d3a8abab

  • SSDEEP

    24576:681dAtsOGdZowWGrpTsRY3KrfuM1kI5YfI12Or:5AtsnbDWxq/ukI5euHr

Score
8/10
bootkitpersistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074.exe
    "C:\Users\Admin\AppData\Local\Temp\de44201d7dab72507b2f94a753ebe3f1148ef62b95742f4da32a5b273d89e074.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\ProgramData\bsprotection.exe
      C:\ProgramData\bsprotection.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Writes to the Master Boot Record (MBR)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\bsprotection.exe
    Filesize

    825KB

    MD5

    a6fb70441f47faaa26550b6bf87ff7d1

    SHA1

    c3d6152b08b5bc9295d4769b2f148211cf0039c6

    SHA256

    27eb7c6d0203a0ecf5d1ecac1637890abeb1fb01dc24bdf615f53b7a932b2caa

    SHA512

    c1b0387bb30545d30d0eabfec48331c0958d88ab53f7765ab30c511f178ffcfda15e099a185edf142f6c47521425372ce952cb31f92aee5d04cbcaa08e40af63

    Download Submit

  • \ProgramData\bsprotection.exe
    Filesize

    825KB

    MD5

    a6fb70441f47faaa26550b6bf87ff7d1

    SHA1

    c3d6152b08b5bc9295d4769b2f148211cf0039c6

    SHA256

    27eb7c6d0203a0ecf5d1ecac1637890abeb1fb01dc24bdf615f53b7a932b2caa

    SHA512

    c1b0387bb30545d30d0eabfec48331c0958d88ab53f7765ab30c511f178ffcfda15e099a185edf142f6c47521425372ce952cb31f92aee5d04cbcaa08e40af63

    Download Submit

  • \ProgramData\bsprotection.exe
    Filesize

    825KB

    MD5

    a6fb70441f47faaa26550b6bf87ff7d1

    SHA1

    c3d6152b08b5bc9295d4769b2f148211cf0039c6

    SHA256

    27eb7c6d0203a0ecf5d1ecac1637890abeb1fb01dc24bdf615f53b7a932b2caa

    SHA512

    c1b0387bb30545d30d0eabfec48331c0958d88ab53f7765ab30c511f178ffcfda15e099a185edf142f6c47521425372ce952cb31f92aee5d04cbcaa08e40af63

    Download Submit

  • memory/748-54-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/748-55-0x0000000000400000-0x00000000004EA000-memory.dmp

    Filesize

    936KB

    Download

  • memory/748-60-0x0000000000400000-0x00000000004EA000-memory.dmp

    Filesize

    936KB

    Download

  • memory/940-62-0x0000000000400000-0x0000000000A1C000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/940-64-0x0000000000400000-0x0000000000A1C000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/940-65-0x0000000000400000-0x0000000000A1C000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/940-66-0x0000000000400000-0x0000000000A1C000-memory.dmp

    Filesize

    6.1MB

    Download