Analysis

  • max time kernel
    156s
  • max time network
    159s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    26-07-2021 12:41

General

  • Target

    91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe

  • Size

    484KB

  • MD5

    8205a1106ae91d0b0705992d61e84ab2

  • SHA1

    49cdc85728bf604a50f838f7ae941977852cc7a2

  • SHA256

    91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1

  • SHA512

    8fc53dacd6b21ed9e1dc2a00edf154c40699754a116bdaf6566b8341c70ac293c8ba69d69a767af5ad8d0c8737a22dbe2609594983a1200375d40af3f4953b2e

Malware Config

Extracted

Path

C:\DECRYPT-FILES.txt

Family

maze

Ransom Note
Attention! ---------------------------- | What happened? ---------------------------- All your files, documents, photos, databases, and other important data are safely encrypted with reliable algorithms. You cannot access the files right now. But do not worry. You have a chance! It is easy to recover in a few steps. ---------------------------- | How to get my files back? ---------------------------- The only method to restore your files is to purchase a unique for you private key which is securely stored on our servers. To contact us and purchase the key you have to visit our website in a hidden TOR network. There are general 2 ways to reach us: 1) [Recommended] Using hidden TOR network. a) Download a special TOR browser: https://www.torproject.org/ b) Install the TOR Browser. c) Open the TOR Browser. d) Open our website in the TOR browser: http://aoacugmutagkwctu.onion/86ac0975dd788539 e) Follow the instructions on this page. 2) If you have any problems connecting or using TOR network a) Open our website: https://mazedecrypt.top/86ac0975dd788539 b) Follow the instructions on this page. Warning: the second (2) method can be blocked in some countries. That is why the first (1) method is recommended to use. On this page, you will see instructions on how to make a free decryption test and how to pay. Also it has a live chat with our operators and support team. ---------------------------- | What about guarantees? ---------------------------- We understand your stress and worry. So you have a FREE opportunity to test a service by instantly decrypting for free three files on your computer! If you have any problems our friendly support team is always here to assist you in a live chat! ------------------------------------------------------------------------------- THIS IS A SPECIAL BLOCK WITH A PERSONAL AND CONFIDENTIAL INFORMATION! DO NOT TOUCH IT WE NEED IT TO IDENTIFY AND AUTHORIZE YOU ---BEGIN MAZE KEY--- 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 ---END MAZE KEY---
URLs

http://aoacugmutagkwctu.onion/86ac0975dd788539

https://mazedecrypt.top/86ac0975dd788539

Signatures

  • Maze

    Ransomware family also known as ChaCha.

  • suricata: ET MALWARE Maze/ID Ransomware Activity
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3728
    • C:\Windows\system32\wbem\wmic.exe
      "C:\bjkm\..\Windows\wxc\c\ucrai\..\..\..\system32\m\wbs\..\..\wbem\ss\c\nast\..\..\..\wmic.exe" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3780
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4024
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x3c4
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3728-114-0x0000000000B00000-0x0000000000C4A000-memory.dmp

    Filesize

    1.3MB

  • memory/3728-115-0x0000000000DD0000-0x0000000000E2D000-memory.dmp

    Filesize

    372KB

  • memory/3780-116-0x0000000000000000-mapping.dmp