General

  • Target

    2023-03-12_99c451001b4a530a578952665ec526be_crysis.exe

  • Size

    92KB

  • Sample

    230313-m849jacb3w

  • MD5

    99c451001b4a530a578952665ec526be

  • SHA1

    6fb938ac4f76843d4ff37fc9d822f76a86f7feb2

  • SHA256

    245f7a3c993a0ecada1c1f8936ea82e8e48812c5758767e5d91db91324bc303a

  • SHA512

    f740f5926924bd2ba4645f6b44f4aa8fd43c988f7cc2b9f6fa96835a66f907bde6728f5f33be3331a89bebdc3bcae664dd3211f39bed284aa78a5d439a94e765

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AK018vUKEVi9fH8v0iQGxk4:Qw+asqN5aW/hLb18gVue/

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All your files have been encrypted! Don't worry, you can return all your files! If you want to restore them, write to the mail(ronrivest@airmail.cc or): jerd@420blaze.it YOUR ID jerd@keemail.me https://tox.chat/download.html Free decryption as guarantee Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 3Mb (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.
Emails

mail(ronrivest@airmail.cc

jerd@420blaze.it

jerd@keemail.me

URLs

https://tox.chat/download.html

Targets

    • Target

      2023-03-12_99c451001b4a530a578952665ec526be_crysis.exe

    • Size

      92KB

    • MD5

      99c451001b4a530a578952665ec526be

    • SHA1

      6fb938ac4f76843d4ff37fc9d822f76a86f7feb2

    • SHA256

      245f7a3c993a0ecada1c1f8936ea82e8e48812c5758767e5d91db91324bc303a

    • SHA512

      f740f5926924bd2ba4645f6b44f4aa8fd43c988f7cc2b9f6fa96835a66f907bde6728f5f33be3331a89bebdc3bcae664dd3211f39bed284aa78a5d439a94e765

    • SSDEEP

      1536:mBwl+KXpsqN5vlwWYyhY9S4AK018vUKEVi9fH8v0iQGxk4:Qw+asqN5aW/hLb18gVue/

    • Dharma

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

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • 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.

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks