Overview

overview

10

Static

static

3

65ac9daf30...b7.exe

windows7-x64

10

65ac9daf30...b7.exe

windows10-2004-x64

8

Sharing

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General

  • Target

    65ac9daf3070161ac996fb8946632599547f1c9450d7dcd0f8dc1c85b4e8b3b7.zip

  • Size

    149KB

  • Sample

    250309-vfyv2swtay

  • MD5

    e32c2b2810fdf8d277b9e9f95b273042

  • SHA1

    4382a3a1e6965f4e0bea5200a4d5d8e92c083e06

  • SHA256

    591c9b81e7db60504efbdd41d6c6f67c62f6782bb514b7d80feaf36193be365c

  • SHA512

    63d0505d864fc4246e0afcd825696ed6862f624ae8ff50661b77b0cdcefb08c5c135cab012bef8832f7f38859c0747cd056f4d9460777c7eef79216f32c39490

  • SSDEEP

    3072:WALVDe5HbpF3fWOptj5x7UwIGbhDjXXRrFGvkBYo96hDHwk3cApi:WwDiT355UUbhXRxUaYo96hhMB

Score
10/10
dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\ProgramData\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 843BA934 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

      65ac9daf3070161ac996fb8946632599547f1c9450d7dcd0f8dc1c85b4e8b3b7.exe

    • Size

      243KB

    • MD5

      f3c11989987acee8b271f571cdc7757c

    • SHA1

      50a191d53bc397ce08af356a224135488ed23619

    • SHA256

      65ac9daf3070161ac996fb8946632599547f1c9450d7dcd0f8dc1c85b4e8b3b7

    • SHA512

      27e9690090d4d928140b0c6b34205371bd2c8cce8423308fff0fdbd1ebfec9b4b50538a226de73145598aa4f7d9153db67a21cebed00808466cf2a93b697a119

    • SSDEEP

      3072:X9As+JFTpwVwFVSY9QziR0BEchY/VMaFWfC2UdG8zeIw0fuZb56RxokMUuncB:NAxFTpwCFkxBYRW3sZ33eYAk4Q

    Score
    10/10
    dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

    • Dharma

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

      ransomwaredharma

    • Dharma family

      dharma

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (313) files with added filename extension

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

      ransomware

    • System Binary Proxy Execution: Regsvcs/Regasm

      Abuse Regasm to proxy execution of malicious code.

      defense_evasion

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Deletes itself

    • 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

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

System Binary Proxy Execution

1
T1218

Regsvcs/Regasm

1
T1218.009

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

System Information Discovery

1
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