Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    26-05-2024 05:01

General

  • Target

    d6dfdb332623e9be79855681dd84c8234174ba900c93970d8574523516b11aeb.exe

  • Size

    5.3MB

  • MD5

    4439dea6e261e089e18103c9ffd48541

  • SHA1

    63c49802bc7f338cb0a5fd3a0d29d6a88c6f251d

  • SHA256

    d6dfdb332623e9be79855681dd84c8234174ba900c93970d8574523516b11aeb

  • SHA512

    38527c707bfd2dbe33064bdbcd59db62e445461e2475e9dfe3026bf232eb37a3a6d185f3244c29fd30f69deb2c46cb04ffa7dff618a40e4bad6ea4b8ecbfe32b

  • SSDEEP

    98304:GN/SSxn5D1cKNn1q5hwtiC5exhnSH2nLlalo/iwd9xaEDHr9gfrXx36T:GN/SoVNtA59Vjiwd9xaEDHrYrB3E

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d6dfdb332623e9be79855681dd84c8234174ba900c93970d8574523516b11aeb.exe
    "C:\Users\Admin\AppData\Local\Temp\d6dfdb332623e9be79855681dd84c8234174ba900c93970d8574523516b11aeb.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\YShow3D.exe
      C:\Users\Admin\AppData\Local\Temp\\YShow3D.exe /i Çë²åÈë¼ÓÃܹ·mdongle runtime system is not installed! /t ÌáʾÐÅÏ¢£º /k 16
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2952

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\YShow3D.exe
    Filesize

    326KB

    MD5

    8e96277706fe70a9f910b7f85ea8eb92

    SHA1

    34ea5439c8711cb386e51520f9c4b05e6997c96f

    SHA256

    4f3dc8c71c652cf4ef4f0bf6d09f3272afb36df142e8eba1dd645efd4b1aca14

    SHA512

    3605cb71116db6fa12dae3727ce01d4f68f7afb5153b7575452c0e33861ddebdb33f9c3099f86d7625fb99b4d6fd548f60290a4b3cb9ad8e66d6d5bb50bcdbfa

  • memory/1108-0-0x0000000000400000-0x0000000000972000-memory.dmp
    Filesize

    5.4MB

  • memory/1108-2-0x0000000000400000-0x0000000000972000-memory.dmp
    Filesize

    5.4MB

  • memory/1108-3-0x0000000000400000-0x0000000000972000-memory.dmp
    Filesize

    5.4MB

  • memory/1108-4-0x0000000002C00000-0x0000000002D2B000-memory.dmp
    Filesize

    1.2MB

  • memory/1108-11-0x0000000000400000-0x0000000000972000-memory.dmp
    Filesize

    5.4MB

  • memory/1108-12-0x0000000002C00000-0x0000000002D2B000-memory.dmp
    Filesize

    1.2MB