Overview

overview

10

Static

static

ec35c76ad2...le.exe

windows10_x64

10

Analysis

  • max time kernel
    300s
  • max time network
    378s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    20-10-2021 08:50

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General

  • Target

    ec35c76ad2c8192f09c02eca1f263b406163470ca8438d054db7adcf5bfc0597.sample.exe

  • Size

    39KB

  • MD5

    7529e3c83618f5e3a4cc6dbf3a8534a6

  • SHA1

    0f944504eebfca5466b6113853b0d83e38cf885a

  • SHA256

    ec35c76ad2c8192f09c02eca1f263b406163470ca8438d054db7adcf5bfc0597

  • SHA512

    7eef97937cc1e3afd3fca0618328a5b6ecb72123a199739f6b1b972dd90e01e07492eb26352ee00421d026c63af48973c014bdd76d95ea841eb2fefd613631cc

Score
10/10
ragnarlockerbootkitpersistenceransomware

Malware Config

Extracted

Path

C:\Users\Public\Documents\RGNR_7E8535F5.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 ( cargowelcome@protonmail.com ) 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--- ***********************************************************************************
Emails

cargowelcome@protonmail.com

Wallets

1BKK8bsFfG3YxTd3N15GxaYfHopoThXoY4

URLs

https://tox.chat/download.html

Signatures

  • RagnarLocker

    Ransomware first seen at the end of 2019, which has been used in targetted attacks against multiple companies.

    ransomwareragnarlocker
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Drops startup file 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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.

    bootkitpersistence
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Opens file in notepad (likely ransom note) 2 IoCs
    ransomware
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec35c76ad2c8192f09c02eca1f263b406163470ca8438d054db7adcf5bfc0597.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\ec35c76ad2c8192f09c02eca1f263b406163470ca8438d054db7adcf5bfc0597.sample.exe"
    1⤵
    • Drops startup file
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4256
    • C:\Windows\System32\Wbem\wmic.exe
      wmic.exe shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2612
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:4052
    • C:\Windows\SysWOW64\notepad.exe
      C:\Users\Public\Documents\RGNR_7E8535F5.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2316
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:652
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\RGNR_7E8535F5.txt
    1⤵
    • Opens file in notepad (likely ransom note)
    • Suspicious use of FindShellTrayWindow
    PID:1492

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1
T1067

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

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Downloads

  • C:\Users\Admin\Desktop\RGNR_7E8535F5.txt
    MD5

    0880547340d1b849a7d4faaf04b6f905

    SHA1

    37fa5848977fd39df901be01c75b8f8320b46322

    SHA256

    84449f1e874b763619271a57bfb43bd06e9c728c6c6f51317c56e9e94e619b25

    SHA512

    9048a3d5ab7472c1daa1efe4a35d559fc069051a5eb4b8439c2ef25318b4de6a6c648a7db595e7ae76f215614333e3f06184eb18b2904aace0c723f8b9c35a91

    Download Submit
  • C:\Users\Public\Documents\RGNR_7E8535F5.txt
    MD5

    0880547340d1b849a7d4faaf04b6f905

    SHA1

    37fa5848977fd39df901be01c75b8f8320b46322

    SHA256

    84449f1e874b763619271a57bfb43bd06e9c728c6c6f51317c56e9e94e619b25

    SHA512

    9048a3d5ab7472c1daa1efe4a35d559fc069051a5eb4b8439c2ef25318b4de6a6c648a7db595e7ae76f215614333e3f06184eb18b2904aace0c723f8b9c35a91

    Download Submit
  • memory/2316-117-0x0000000000000000-mapping.dmp
    Download
  • memory/2612-115-0x0000000000000000-mapping.dmp
    Download
  • memory/4052-116-0x0000000000000000-mapping.dmp
    Download