General

  • Target

    2024-06-10_4045af2b85614a715eff9f3dd4102f91_crysis_dharma

  • Size

    92KB

  • Sample

    240610-x5dyaaxemd

  • MD5

    4045af2b85614a715eff9f3dd4102f91

  • SHA1

    57ba60686e03f028abe10a54c7d22c270a011ee3

  • SHA256

    2366ec4f33e0ee8c70ac849636fe13ada29952709d9bac47400c8f5d258f279b

  • SHA512

    b0f93cc6be420a06d05ff0a7bcb13ad75f6d3249ff7a56e0c44a350c0a45590d788fc6202c5816034235409591ee21c8b7f011c9074ef38349e424d68f429f00

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AxoFaOV0Xt2lj730j/enn9tvfXpVcCu9du:ww+asqN5aW/hSQYOVY2lj73QGvfXHxue

Malware Config

Extracted

Path

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

Ransom Note
All FILES ENCRYPTED "RSA1024" All YOUR FILES HAVE BEEN ENCRYPTED!!! IF YOU WANT TO RESTORE THEM, WRITE US TO THE E-MAIL [email protected] IN THE LETTER WRITE YOUR ID, YOUR ID D47C37D6 IF YOU ARE NOT ANSWERED, WRITE TO EMAIL: [email protected] YOUR SECRET KEY WILL BE STORED ON A SERVER 7 DAYS, AFTER 7 DAYS IT MAY BE OVERWRITTEN BY OTHER KEYS, DON'T PULL TIME, WAITING YOUR EMAIL FREE DECRYPTION FOR PROOF 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.) DECRYPTION PROCESS: When you make sure of decryption possibility transfer the money to our bitcoin wallet. As soon as we receive the money we will send you: 1. Decryption program. 2. Detailed instruction for decryption. 3. And individual keys for decrypting your files. !WARNING! 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:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All FILES ENCRYPTED "RSA1024" All YOUR FILES HAVE BEEN ENCRYPTED!!! IF YOU WANT TO RESTORE THEM, WRITE US TO THE E-MAIL [email protected] IN THE LETTER WRITE YOUR ID, YOUR ID E7AEE5B8 IF YOU ARE NOT ANSWERED, WRITE TO EMAIL: [email protected] YOUR SECRET KEY WILL BE STORED ON A SERVER 7 DAYS, AFTER 7 DAYS IT MAY BE OVERWRITTEN BY OTHER KEYS, DON'T PULL TIME, WAITING YOUR EMAIL FREE DECRYPTION FOR PROOF 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.) DECRYPTION PROCESS: When you make sure of decryption possibility transfer the money to our bitcoin wallet. As soon as we receive the money we will send you: 1. Decryption program. 2. Detailed instruction for decryption. 3. And individual keys for decrypting your files. !WARNING! 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

      2024-06-10_4045af2b85614a715eff9f3dd4102f91_crysis_dharma

    • Size

      92KB

    • MD5

      4045af2b85614a715eff9f3dd4102f91

    • SHA1

      57ba60686e03f028abe10a54c7d22c270a011ee3

    • SHA256

      2366ec4f33e0ee8c70ac849636fe13ada29952709d9bac47400c8f5d258f279b

    • SHA512

      b0f93cc6be420a06d05ff0a7bcb13ad75f6d3249ff7a56e0c44a350c0a45590d788fc6202c5816034235409591ee21c8b7f011c9074ef38349e424d68f429f00

    • SSDEEP

      1536:GBwl+KXpsqN5vlwWYyhZ9S4AxoFaOV0Xt2lj730j/enn9tvfXpVcCu9du:ww+asqN5aW/hSQYOVY2lj73QGvfXHxue

    • 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.

    • Renames multiple (315) files with added filename extension

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

    • 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 v13

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

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks