Overview

overview

10

Static

static

10

b1dd75efa7...74.exe

windows7-x64

10

b1dd75efa7...74.exe

windows10-2004-x64

10

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General

  • Target

    b1dd75efa7ba920522bd4bfe4a3e5d08138bfc548faff601206b0cc56c9bb674

  • Size

    70KB

  • Sample

    240619-b3pq4s1gkb

  • MD5

    bdf4fc15d73d750fb764b52da65d6ab4

  • SHA1

    51aa0638430b6341498b65a877d1e0940064f1fc

  • SHA256

    b1dd75efa7ba920522bd4bfe4a3e5d08138bfc548faff601206b0cc56c9bb674

  • SHA512

    74b3c5f641b289236189bb38871c1e3962f70a172d1e52dedcf020fe8b843ca9f7ec3591726869fafa12745b61349c8b4807c46c3e6c00b26d9596efbf0d7a29

  • SSDEEP

    1536:eclu3E0ty5RM6Esc4m6cq1ZebmaL4UnpCdsfV1YADir+6S:ju3NURAscOx7wpCKznz

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealerupx

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 FEDCC67F 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.

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 841E4ECE 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

      b1dd75efa7ba920522bd4bfe4a3e5d08138bfc548faff601206b0cc56c9bb674

    • Size

      70KB

    • MD5

      bdf4fc15d73d750fb764b52da65d6ab4

    • SHA1

      51aa0638430b6341498b65a877d1e0940064f1fc

    • SHA256

      b1dd75efa7ba920522bd4bfe4a3e5d08138bfc548faff601206b0cc56c9bb674

    • SHA512

      74b3c5f641b289236189bb38871c1e3962f70a172d1e52dedcf020fe8b843ca9f7ec3591726869fafa12745b61349c8b4807c46c3e6c00b26d9596efbf0d7a29

    • SSDEEP

      1536:eclu3E0ty5RM6Esc4m6cq1ZebmaL4UnpCdsfV1YADir+6S:ju3NURAscOx7wpCKznz

    Score
    10/10
    dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealerupx

    • Dharma

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

      ransomwaredharma

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Detects win.dharma.

    • Identifies DHARMA ransomware

    • Renames multiple (312) files with added filename extension

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

      ransomware

    • UPX dump on OEP (original entry point)

    • Checks computer location settings

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

    • Drops startup file

    • Reads user/profile data of web browsers

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

      spywarestealer

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks