Analysis

  • max time kernel
    2s
  • max time network
    7s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 11:30

Errors

Reason
Machine shutdown

General

  • Target

    Ransomware PowerPoint.exe

  • Size

    136KB

  • MD5

    70108103a53123201ceb2e921fcfe83c

  • SHA1

    c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3

  • SHA256

    9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d

  • SHA512

    996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b

  • SSDEEP

    1536:3VrdxBvcGdDHHtWv8udA1JYREgJ/qEOpsChnU4V1lyqHv4vAmOG9HSDKRppppp5B:1H5D0dSgo7ppTV1lyqPOAmOG9HSOD

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ransomware PowerPoint.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransomware PowerPoint.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of WriteProcessMemory
    PID:3528
    • C:\Users\Admin\AppData\Local\Temp\sys3.exe
      C:\Users\Admin\AppData\Local\Temp\\sys3.exe
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of AdjustPrivilegeToken
      PID:3564
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa3994855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:2928

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\sys3.exe
    Filesize

    136KB

    MD5

    70108103a53123201ceb2e921fcfe83c

    SHA1

    c71799a6a6d09ee758b04cdf90a4ab76fbd2a7e3

    SHA256

    9c3f8df80193c085912c9950c58051ae77c321975784cc069ceacd4f57d5861d

    SHA512

    996701c65eee7f781c2d22dce63f4a95900f36b97a99dcf833045bce239a08b3c2f6326b3a808431cdab92d59161dd80763e44126578e160d79b7095175d276b

  • C:\Users\Admin\AppData\Local\Temp\systm.txt
    Filesize

    59B

    MD5

    214748056d47a2418b469bf7520556f2

    SHA1

    93c561cac44213ad6de3ccf0e6b6dcb0a39cb09e

    SHA256

    5ecbf39656b95ffa447f42cace84eb2c01fd5af713c9fd0e33e78b9d138ef42f

    SHA512

    55fb4805bcbed7fcd437a4bfb1de6a1b233cc2294a5082a8e1f782673f62061c9714547cd2853f5c6cb77882f7e560bcfc1db7eb0526f6eb967565c979f78017

  • memory/3528-0-0x000000002AA00000-0x000000002AA24000-memory.dmp
    Filesize

    144KB