Analysis

  • max time kernel
    96s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-09-2024 09:09

General

  • Target

    202409086b573d2e5879c3cb307b1e1fdb9087f4wannacry.exe

  • Size

    245KB

  • MD5

    6b573d2e5879c3cb307b1e1fdb9087f4

  • SHA1

    690d83a67319f6ff98690776e86dc0704b0d4a92

  • SHA256

    0545950ceb362f4f82da58a3c24825c26e188e210d345fbd127ad75b0f8dbcc9

  • SHA512

    674f061c61277f2b73a9d9b12ae83039ac3607c8bb0b043ac0ba9806eaef57508869e706bf9179258700dea6ae83ab87c64bac00441ab09df645a59720f71656

  • SSDEEP

    6144:BAHLSHCsulgv6ZZJJchBRsZVOB45r9iTIbdiLEusp:SrSLNv652bbB428bgY1p

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Loads dropped DLL 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\202409086b573d2e5879c3cb307b1e1fdb9087f4wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\202409086b573d2e5879c3cb307b1e1fdb9087f4wannacry.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Runtime.MSIL.1.0.0.0\sByte.dll

    Filesize

    39KB

    MD5

    d80d1b6d9a6d5986fa47f6f8487030e1

    SHA1

    8f5773bf9eca43b079c1766b2e9f44cc90bd9215

    SHA256

    446128f1712da8064d0197376184315cb529ed26ed9122f7b171bb208e22c0c3

    SHA512

    9fcf0105c2c9ee81c526d41633d93579bb8e2837989d77fb4a6523440415ec2d7fa46ac9ae4e55ecebd99126837817ac308cc079475de02667b21727a43d74cc

  • memory/3812-0-0x00007FF9FBA03000-0x00007FF9FBA05000-memory.dmp

    Filesize

    8KB

  • memory/3812-1-0x0000000000DF0000-0x0000000000E34000-memory.dmp

    Filesize

    272KB

  • memory/3812-2-0x00000000014D0000-0x00000000014DC000-memory.dmp

    Filesize

    48KB

  • memory/3812-6-0x0000000001780000-0x0000000001788000-memory.dmp

    Filesize

    32KB

  • memory/3812-7-0x00007FF9FBA00000-0x00007FF9FC4C1000-memory.dmp

    Filesize

    10.8MB

  • memory/3812-8-0x00007FF9FBA00000-0x00007FF9FC4C1000-memory.dmp

    Filesize

    10.8MB