Resubmissions

14/05/2025, 08:27

250514-kcdqlavpv410

11/05/2025, 17:34

250511-v5wrzssmz610

11/05/2025, 11:09

250511-m9hf6azlw510

11/05/2025, 00:35

250511-axsedatset10

General

  • Target
    250511-ab4waaszhx.bin
  • Size 26.1MB
  • Sample250511-m9hf6azlw5
  • SHA256 adfd4e9f51bcd27935f153e44b060b6978f55da9135f34cc62361dbbf2d2db57
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • marsstealer

Botnet
  • Default

Extracted

Path
  • wannacry

Ransom Note
  • Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets
  • 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Extracted

Path
  • C:\Users\Public\Documents\RGNR_0C2DADB1.txt

Ransom Note
  • Hello VGCARGO ! ***************************************************************************************************************** If you reading this message, then your network was PENETRATED and all of your files and data has been ENCRYPTED by RAGNAR_LOCKER ! ***************************************************************************************************************** *********What happens with your system ?************ Your network was penetrated, all your files and backups was locked! So from now there is NO ONE CAN HELP YOU to get your files back, EXCEPT US. You can google it, there is no CHANCES to decrypt data without our SECRET KEY. But don't worry ! Your files are NOT DAMAGED or LOST, they are just MODIFIED. You can get it BACK as soon as you PAY. We are looking only for MONEY, so there is no interest for us to steel or delete your information, it's just a BUSINESS $-) HOWEVER you can damage your DATA by yourself if you try to DECRYPT by any other software, without OUR SPECIFIC ENCRYPTION KEY !!! Also, all of your sensitive and private information were gathered and if you decide NOT to pay, we will upload it for public view ! **** ***********How to get back your files ?****** To decrypt all your files and data you have to pay for the encryption KEY : BTC wallet for payment: 1BKK8bsFfG3YxTd3N15GxaYfHopoThXoY4 Amount to pay (in Bitcoin): 25 **** ***********How much time you have to pay?********** * You should get in contact with us within 2 days after you noticed the encryption to get a better price. * The price would be increased by 100% (double price) after 14 Days if there is no contact made. * The key would be completely erased in 21 day if there is no contact made or no deal made. Some sensetive information stolen from the file servers would be uploaded in public or to re-seller. **** ***********What if files can't be restored ?****** To prove that we really can decrypt your data, we will decrypt one of your locked files ! Just send it to us and you will get it back FOR FREE. The price for the decryptor is based on the network size, number of employees, annual revenue. Please feel free to contact us for amount of BTC that should be paid. **** ! IF you don't know how to get bitcoins, we will give you advise how to exchange the money. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! HERE IS THE SIMPLE MANUAL HOW TO GET CONTCAT WITH US ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1) Go to the official website of TOX messenger ( https://tox.chat/download.html ) 2) Download and install qTOX on your PC, choose the platform ( Windows, OS X, Linux, etc. ) 3) Open messenger, click "New Profile" and create profile. 4) Click "Add friends" button and search our contact 7D509C5BB14B1B8CB0A3338EEA9707AD31075868CB9515B17C4C0EC6A0CCCA750CA81606900D 5) For identification, send to our support data from ---RAGNAR SECRET--- IMPORTANT ! IF for some reasons you CAN'T CONTACT us in qTOX, here is our reserve mailbox ( [email protected] ) send a message with a data from ---RAGNAR SECRET--- WARNING! -Do not try to decrypt files with any third-party software (it will be damaged permanently) -Do not reinstall your OS, this can lead to complete data loss and files cannot be decrypted. NEVER! -Your SECRET KEY for decryption is on our server, but it will not be stored forever. DO NOT WASTE TIME ! *********************************************************************************** ---RAGNAR SECRET--- QWZjY0QxRTk2MWU4RTIwYkVCRUNhRWMzRjhCQTdlZDJkNUJCN2JkNDdDMzREMTYyNjNGNTdiZGFDYmI3ZEVhNw== ---RAGNAR SECRET--- ***********************************************************************************
Wallets
  • 1BKK8bsFfG3YxTd3N15GxaYfHopoThXoY4

URLs
  • https://tox.chat/download.html

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • outside-sand.gl.at.ply.gg:31300

Mutex
  • iwkdM6NNMHndQBII

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain
aes.plain

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • 2.tcp.eu.ngrok.io:19695

  • 6.tcp.eu.ngrok.io:12925

Mutex
  • gonq3XlXWgiz

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain

Extracted

Family
  • quasar

Version
  • 1.4.0

Botnet
  • Office04

C2
  • microsoftsys.ddns.net:4782

Mutex
  • 67e0653d-eedf-4888-88ab-78e97eb2df27

Attributes
  • encryption_key

    23E5F6D22FEE1750D36544A759A48349B064BC34

  • install_name

    PerfWatson1.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhost

  • subdirectory

    KDOT

Targets

    • Target
      250511-ab4waaszhx.bin
    • Size 26.1MB
    • SHA256 adfd4e9f51bcd27935f153e44b060b6978f55da9135f34cc62361dbbf2d2db57
    • MD5 SHA1 SHA512 SSDEEP
    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat family

    • Detect Xworm Payload

    • Mars Stealer

      An infostealer written in C++ based on other infostealers.

    • Marsstealer family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • SquirrelWaffle is a simple downloader written in C++.

      SquirrelWaffle.

    • Squirrelwaffle family

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Wannacry family

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Async RAT payload

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Squirrelwaffle payload

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Executes dropped EXE

    • Modifies file permissions

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks