blackbasta | 462bbb8fd7be98129aa73efa91e2d88fa9cafc7b47431b8227d1957f5d0c8ba7

Analysis

max time kernel
47s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2025 16:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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

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 (2428) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\csi.dll	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\Assets\AppPackageAppList.targetsize-30.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\Assets\Square44x44Logo.targetsize-24.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Win10\AdCloseButton.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Assets\Square71x71Logo.scale-200.png	file.exe
File opened for modification	C:\Program Files\Windows Defender\fr-FR\MpEvMsg.dll.mui	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_OEM_Perp-pl.xrm-ms	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\OneNoteNotebookLargeTile.scale-100.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\Assets\LargeTile.scale-400.png	file.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-locale-l1-1-0.dll	file.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-ul-oob.xrm-ms	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-pl.xrm-ms	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\Assets\GetStartedAppList.targetsize-16_altform-unplated_contrast-black.png	file.exe
File created	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\FreshPaint.Model.CX.dll	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\AppxManifest.xml	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\BuildInfo.xml	file.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\ipskor.xml	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-pl.xrm-ms	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-ppd.xrm-ms	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_MAKC2R-ppd.xrm-ms	file.exe
File opened for modification	C:\Program Files\SplitReceive.M2V	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Linq.Expressions.dll	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SEQCHK10.DLL	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AlarmsSmallTile.contrast-white_scale-100.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AlarmsStoreLogo.contrast-white_scale-100.png	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTrial-pl.xrm-ms	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio_Model_CX.winmd	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	file.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee.dll	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Document Themes 16\Integral.thmx	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial-ppd.xrm-ms	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Grace-ul-oob.xrm-ms	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\xul.dll	file.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\ieinstal.exe	file.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\hwrdeslm.dat	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_Subscription-ppd.xrm-ms	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ppd.xrm-ms	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Advertising.Xaml_10.1808.3.0_x64__8wekyb3d8bbwe\Microsoft.Advertising\bootstrap.html	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\Assets\GetStartedAppList.targetsize-32_altform-unplated_contrast-black.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Assets\AlarmsAppList.targetsize-16_altform-lightunplated.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\CortanaCommands.xml	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.dll	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-ul-oob.xrm-ms	file.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ar-sa.dll	file.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee90.tlb	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\PersonalDemoR_BypassTrial180-ppd.xrm-ms	file.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ul-phn.xrm-ms	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\3039_24x24x32.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-60_altform-fullcolor.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\TimerWideTile.contrast-white_scale-100.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_neutral_split.scale-150_8wekyb3d8bbwe\AppxManifest.xml	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\AppxSignature.p7x	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Runtime.InteropServices.dll	file.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-timezone-l1-1-0.dll	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\OneNoteNewNoteSmallTile.scale-200.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\OneNoteSectionGroupMedTile.scale-100.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\images\OneNoteSplashLogo.scale-150.png	file.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-48_altform-unplated_contrast-black.png	file.exe
File opened for modification	C:\Program Files\7-Zip\Lang\nl.txt	file.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.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
952	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.oajg0xu2s\DefaultIcon	file.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1816	vssvc.exe
Token: SeRestorePrivilege	1816	vssvc.exe
Token: SeAuditPrivilege	1816	vssvc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 524	1688	file.exe	86
PID 1688 wrote to memory of 524	1688	file.exe	86
PID 1688 wrote to memory of 524	1688	file.exe	86
PID 524 wrote to memory of 952	524	cmd.exe	88
PID 524 wrote to memory of 952	524	cmd.exe	88

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 file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1688
- 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:524
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:952

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1816

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

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact