Overview

overview

10

Static

static

1

RNSM00324.7z

windows7-x64

10

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General

  • Target

    RNSM00324.7z

  • Size

    2.2MB

  • Sample

    241112-w2xesaycpe

  • MD5

    e8ea940bde02dd24073a6989eba9a3c6

  • SHA1

    96971422c42909f37669a3834067af96acafee9b

  • SHA256

    01b0dac333ed7b7c8eed9a13edd5f97097a4d078702fed6017c19fd92b3b8ca0

  • SHA512

    5a44ffb9d68281f5620d7d0af2d794b70b0f5404ab69c2eb3de0f3b9391b34e3e3d6366dbd7dce4bc0b1c3e0510a18b19308caf09269819c5971a3bc31324d12

  • SSDEEP

    49152:pbzi7nb5prHNdAfMpjfZVsRnlP37dtZxPTcbYSE/WcAZwkx7OlUHb6Dk6L6lyhRf:9i5BHXAfWf7sL3J3ubYspqlaWDLelyR

Score
10/10
dharmagandcrabbackdoorcredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] Write this ID in the title of your message 515B8657 In case of no answer in 24 hours write us to theese e-mails: [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Targets

    • Target

      RNSM00324.7z

    • Size

      2.2MB

    • MD5

      e8ea940bde02dd24073a6989eba9a3c6

    • SHA1

      96971422c42909f37669a3834067af96acafee9b

    • SHA256

      01b0dac333ed7b7c8eed9a13edd5f97097a4d078702fed6017c19fd92b3b8ca0

    • SHA512

      5a44ffb9d68281f5620d7d0af2d794b70b0f5404ab69c2eb3de0f3b9391b34e3e3d6366dbd7dce4bc0b1c3e0510a18b19308caf09269819c5971a3bc31324d12

    • SSDEEP

      49152:pbzi7nb5prHNdAfMpjfZVsRnlP37dtZxPTcbYSE/WcAZwkx7OlUHb6Dk6L6lyhRf:9i5BHXAfWf7sL3J3ubYspqlaWDLelyR

    Score
    10/10
    dharmagandcrabbackdoorcredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

      ransomwaredharma

    • Dharma family

      dharma

    • GandCrab payload

    • Gandcrab

      Gandcrab is a Trojan horse that encrypts files on a computer.

      ransomwarebackdoorgandcrab

    • Gandcrab family

      gandcrab

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (320) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Direct Volume Access

1
T1006

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks