General

  • Target

    903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e

  • Size

    270KB

  • Sample

    220731-h1exfseaa7

  • MD5

    b0f8e32c7f511b967776b53d9bbc05b9

  • SHA1

    d31521a4c20233ccc35704e9c40a7ed368f31126

  • SHA256

    903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e

  • SHA512

    fb2e4c61069f7b5321cf8e872b2cce770faede7351af58d18c416db51dc5a3325dfd22737a3cd27ff54fd247118851c1f9bfcf554e96fce0606dd3781af4ffe2

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 admin@fentex.net Write this ID in the title of your message D3E82149 In case of no answer in 24 hours write us to theese e-mails: admin@fentex.world 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.
Emails

admin@fentex.net

admin@fentex.world

Targets

    • Target

      903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e

    • Size

      270KB

    • MD5

      b0f8e32c7f511b967776b53d9bbc05b9

    • SHA1

      d31521a4c20233ccc35704e9c40a7ed368f31126

    • SHA256

      903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e

    • SHA512

      fb2e4c61069f7b5321cf8e872b2cce770faede7351af58d18c416db51dc5a3325dfd22737a3cd27ff54fd247118851c1f9bfcf554e96fce0606dd3781af4ffe2

    • 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.

    • 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

1
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