blackbasta | 462bbb8fd7be98129aa73efa91e2d88fa9cafc7b47431b8227d1957f5d0c8ba7

Analysis

max time kernel
145s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 16:58

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General

Target

file.exe
Size

1018KB
MD5

d50a3b60eb046c5d7bc6768bd3d7f1b9
SHA1

7a33162908cba6678dc75d688da1f86b54849782
SHA256

462bbb8fd7be98129aa73efa91e2d88fa9cafc7b47431b8227d1957f5d0c8ba7
SHA512

0ff59614c5f1e118f02c5b895ffc574bee59fbec5a2b859dd970173765420ae16bb4db06ce8159dabca6304f5ced0a1e75afde15720eba3f3510e5f47fa14897
SSDEEP

24576:FNmcuJVxZ02owfnvUo7cvx1Swcs/mpVs/DtnGgFg9voR:yDljHZsnHx/GctvFx

Score

10^/10

blackbasta defense_evasion discovery execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Program Files\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: 95ed9727-1fc8-40ed-98bd-c74c5aa9899f *!* 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/

Signatures

Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
ransomware blackbasta
Blackbasta family
blackbasta
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (9534) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI	file.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR31F.GIF	file.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\en-US\js\settings.js	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\LINES\BD21313_.GIF	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Antarctica\Mawson	file.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\modern_settings.png	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Africa\Johannesburg	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\3082\MSO.ACL	file.exe
File created	C:\Program Files\Microsoft Games\Multiplayer\Spades\it-IT\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\fr-FR\msdaprsr.dll.mui	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\EDGE\THMBNAIL.PNG	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCVDT.DLL	file.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\41.png	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18239_.WMF	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	file.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Spades\fr-FR\ShvlRes.dll.mui	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\video_output\libyuv_plugin.dll	file.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Acrofx32.dll	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AG00120_.GIF	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\OOFTMPL.CFG	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\sq\LC_MESSAGES\vlc.mo	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\TexturedBlue.css	file.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\et-EE\tipresx.dll.mui	file.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\System.Workflow.ComponentModel.dll	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\video_chroma\libgrey_yuv_plugin.dll	file.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\fr\System.IO.Log.Resources.dll	file.exe
File created	C:\Program Files (x86)\Common Files\microsoft shared\VSTA\Pipeline.v10.0\Contracts\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\INFOPATHEDITOR_F_COL.HXK	file.exe
File created	C:\Program Files\VideoLAN\VLC\locale\sk\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\content-types.properties	file.exe
File opened for modification	C:\Program Files\Windows Media Player\de-DE\wmpnscfg.exe.mui	file.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\en-US\setup_wm.exe.mui	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Essential.thmx	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\audio_output\libmmdevice_plugin.dll	file.exe
File opened for modification	C:\Program Files\Microsoft Games\Multiplayer\Backgammon\en-US\bckgzm.exe.mui	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\CALNDR98.POC	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-profiling_ja.jar	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-profiling.xml	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Smart Tag\METCONV.TXT	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\schema\triggerEvaluators.exsd	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Etc\GMT+8	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.cfg	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MEDIA\WHOOSH.WAV	file.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_corner_bottom_left.png	file.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\33.png	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\cmm\sRGB.pf	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\SIGN.XML	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\jfxwebkit.dll	file.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\MSInfo\fr-FR\msinfo32.exe.mui	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\images\winXPBluTSFrame.png	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.PPT	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Templates\1033\MedianResume.Dotx	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0233512.WMF	file.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\en-US\js\localizedStrings.js	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\it-IT\wab32res.dll.mui	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\schema\com.jrockit.mc.rjmx.service.exsd	file.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\de-DE\js\calendar.js	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Indiana\Knox	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\LINES\BD14882_.GIF	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\ks_IN\LC_MESSAGES\vlc.mo	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\bg_Country.gif	file.exe
File created	C:\Program Files (x86)\Common Files\Adobe AIR\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Yakutat	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21342_.GIF	file.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\CPU.Gadget\es-ES\instructions_read_me.txt	file.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
3032	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.oajg0xu2s\DefaultIcon	file.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.oajg0xu2s	file.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.oajg0xu2s\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	file.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1336	notepad.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2128	vssvc.exe
Token: SeRestorePrivilege	2128	vssvc.exe
Token: SeAuditPrivilege	2128	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 3056	2384	file.exe	30
PID 2384 wrote to memory of 3056	2384	file.exe	30
PID 2384 wrote to memory of 3056	2384	file.exe	30
PID 2384 wrote to memory of 3056	2384	file.exe	30
PID 3056 wrote to memory of 3032	3056	cmd.exe	32
PID 3056 wrote to memory of 3032	3056	cmd.exe	32
PID 3056 wrote to memory of 3032	3056	cmd.exe	32
PID 3056 wrote to memory of 3032	3056	cmd.exe	32
PID 2384 wrote to memory of 864	2384	file.exe	38
PID 2384 wrote to memory of 864	2384	file.exe	38
PID 2384 wrote to memory of 864	2384	file.exe	38
PID 2384 wrote to memory of 864	2384	file.exe	38
PID 864 wrote to memory of 1336	864	cmd.exe	40
PID 864 wrote to memory of 1336	864	cmd.exe	40
PID 864 wrote to memory of 1336	864	cmd.exe	40
PID 864 wrote to memory of 1336	864	cmd.exe	40

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3056
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3032
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /MAX notepad.exe c:\instructions_read_me.txt
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\SysWOW64\notepad.exe
    notepad.exe c:\instructions_read_me.txt
    3⤵
    - System Location Discovery: System Language Discovery
    - Opens file in notepad (likely ransom note)
    PID:1336

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact