blackbasta | d1a7c1e5ecdc4376b07913434048d2625def43e46504715a7a6600505319ad51

General

Target

solara.exe
Size

5.0MB
Sample

250223-b56gmstlgt
MD5

490c2bb3790ac4202ab4ba700e2058a7
SHA1

25de62792ba828dab9e74edf121bdf8e8ff0f0f2
SHA256

d1a7c1e5ecdc4376b07913434048d2625def43e46504715a7a6600505319ad51
SHA512

59fecb83e64abdc5da339cb1506832418ccf99d5c0bf5c46e2359b7f4674381784e3d621df0bebc107e17d728c8ec6ba672f5e5e88a7183c562541bb7a56d1bf
SSDEEP

98304:FtNUK2yL5IrA3ocpcRDL+O14UndAtax4bmtQHgNByxuq4aX7lvECX+e0+Y:FzU5yt53oUIX+ggtax4bKQHgN/arpE4+

Score

10^/10

Malware Config

Extracted

Path

C:\Program Files (x86)\instructions_read_me.txt

Family

blackbasta

Ransom Note

ATTENTION! Your network has been breached and all data was encrypted. Please contact us at: https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/ Login ID: 7ab0444a-f73c-4ab0-b3a9-4c2ead84ecf1 *!* To access .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) *!* To restore all your PCs and get your network working again, follow these instructions: - Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. It doesn't matter, who are trying to do this, either it will be your IT guys or a recovery agency. Please follow these simple rules to avoid data corruption: - Do not modify, rename or delete files. Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. Waiting you in a chat.

URLs

https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/

Targets

- Target
  
  solara.exe
- Size
  
  5.0MB
- MD5
  
  490c2bb3790ac4202ab4ba700e2058a7
- SHA1
  
  25de62792ba828dab9e74edf121bdf8e8ff0f0f2
- SHA256
  
  d1a7c1e5ecdc4376b07913434048d2625def43e46504715a7a6600505319ad51
- SHA512
  
  59fecb83e64abdc5da339cb1506832418ccf99d5c0bf5c46e2359b7f4674381784e3d621df0bebc107e17d728c8ec6ba672f5e5e88a7183c562541bb7a56d1bf
- SSDEEP
  
  98304:FtNUK2yL5IrA3ocpcRDL+O14UndAtax4bmtQHgNByxuq4aX7lvECX+e0+Y:FzU5yt53oUIX+ggtax4bKQHgN/arpE4+
Score

10^/10

blackbasta bootkit defense_evasion discovery execution impact persistence ransomware
- Black Basta
  A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
  ransomware blackbasta
- Blackbasta family
  blackbasta
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware defense_evasion impact execution
- Command and Scripting Interpreter: PowerShell
  Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
  execution
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Executes dropped EXE
- Modifies file permissions
  discovery
- Adds Run key to start application
  persistence
- File and Directory Permissions Modification: Windows File and Directory Permissions Modification
  defense_evasion
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Suspicious use of SetThreadContext
behavioral1