blackbasta | 62e63388953bb30669b403867a3ac2c8130332cf78133f7fd4a7f23cdc939087

Analysis

max time kernel
147s
max time network
14s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 16:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

885KB
MD5

497ef4779c6770e4497adf0bc71655f1
SHA1

328a8793323f11c1d0c5f3ddedf4ae10caafb063
SHA256

62e63388953bb30669b403867a3ac2c8130332cf78133f7fd4a7f23cdc939087
SHA512

35c2c131a84205ecda974fc0cdf93db38184547586c28671379b13b98311289459b5b87c6c8ffa3233ccd42953d4faef47e27195ecd40011cc72cbf3b3e5af35
SSDEEP

24576:pAWf/LUup7zmMl8tOKnvwYQ62jaeekMEoBmn64:pTUS2Ml8trnvwYQ62japkMEQS64

Score

10^/10

blackbasta defense_evasion discovery execution impact persistence 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: 91ff2d86-ecd6-429f-9cfe-ef43ac53155b *!* 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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype = "C:\\Users\\Admin\\AppData\\Local\\Temp\\file.exe"	file.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\api-ms-win-core-localization-l1-2-0.dll	file.exe
File opened for modification	C:\Program Files\Windows Journal\it-IT\JNTFiltr.dll.mui	file.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\master_preferences	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\skins\skin.dtd	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\ink\mraut.dll	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\Ole DB\xmlrwbin.dll	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Metro.thmx	file.exe
File created	C:\Program Files\Microsoft Games\Chess\ja-JP\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\goopdateres_bn.dll	file.exe
File created	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\goopdateres_ro.dll	file.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\Chess.dll	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Apothecary.thmx	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\NL7MODELS000A.dll	file.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Stucco.gif	file.exe
File opened for modification	C:\Program Files\Microsoft Games\More Games\fr-FR\MoreGames.dll.mui	file.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdate.exe	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\ipcclientcerts.dll	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\precomplete	file.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmid.exe	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\skins\winamp2.xml	file.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\photoedge_videoinset.png	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\javap.exe	file.exe
File opened for modification	C:\Program Files\7-Zip\Lang\cy.txt	file.exe
File opened for modification	C:\Program Files\Microsoft Games\Purble Place\PurblePlaceMCE.lnk	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOHEV.DLL	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\MS.GIF	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\api-ms-win-crt-environment-l1-1-0.dll	file.exe
File opened for modification	C:\Program Files\Microsoft Games\Hearts\Hearts.exe	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\WORDIRM.XML	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\sqlceca35.dll	file.exe
File opened for modification	C:\Program Files\Java\jre7\bin\fxplugins.dll	file.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\ieinstal.exe.mui	file.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\GROOVEEX.DLL	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\uninstall.log	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Foundry.thmx	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\SketchPadTestSchema.xml	file.exe
File opened for modification	C:\Program Files\Java\jre7\bin\t2k.dll	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\jce.jar	file.exe
File opened for modification	C:\Program Files\Microsoft Games\Mahjong\ja-JP\Mahjong.exe.mui	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\msadc\msadds.dll	file.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\goopdateres_lv.dll	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	file.exe
File opened for modification	C:\Program Files\7-Zip\Lang\uz-cyrl.txt	file.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\ONFILTER.DLL	file.exe
File created	C:\Program Files\Windows Mail\it-IT\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\IPSEventLogMsg.dll	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\extcheck.exe	file.exe
File opened for modification	C:\Program Files\Windows Media Player\wmpenc.exe	file.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\en-US\F12Tools.dll.mui	file.exe
File opened for modification	C:\Program Files\7-Zip\Lang\ka.txt	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MORPH9.DLL	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\NAME.DLL	file.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\Mso Example Setup File A.txt	file.exe
File opened for modification	C:\Program Files\Windows Media Player\it-IT\WMPDMC.exe.mui	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\EQUATION\EQNEDT32.CNT	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\ado\msado28.tlb	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AN01216_.WMF	file.exe
File opened for modification	C:\Program Files\7-Zip\Lang\sk.txt	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Microsoft.Office.InfoPath.Client.Internal.CLRHost.dll	file.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\it-IT\mpvis.dll.mui	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\apt.exe	file.exe
File created	C:\Program Files\Java\jdk1.7.0_80\include\instructions_read_me.txt	file.exe
File created	C:\Program Files\MSBuild\Microsoft\instructions_read_me.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	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2840	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.pmnqvv85c\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	file.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.pmnqvv85c\DefaultIcon	file.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.pmnqvv85c	file.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2460	file.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2956	vssvc.exe
Token: SeRestorePrivilege	2956	vssvc.exe
Token: SeAuditPrivilege	2956	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2456	2460	file.exe	29
PID 2460 wrote to memory of 2456	2460	file.exe	29
PID 2460 wrote to memory of 2456	2460	file.exe	29
PID 2460 wrote to memory of 2456	2460	file.exe	29
PID 2456 wrote to memory of 2840	2456	cmd.exe	31
PID 2456 wrote to memory of 2840	2456	cmd.exe	31
PID 2456 wrote to memory of 2840	2456	cmd.exe	31
PID 2456 wrote to memory of 2840	2456	cmd.exe	31

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⤵
- Adds Run key to start application
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2460
- 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:2456
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2840

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\instructions_read_me.txt

Filesize
1KB

MD5
48fd4f0bdadd9e2a934c4aef789f7e13

SHA1
7e5c99a356f4fac0b9e538f8a2a8927d1c0c6850

SHA256
f1e74dfde27137949c2352cb782ed6b2d5cf5fcd2ad6fc1f6e91f2f89649e29e

SHA512
17ac0d35284095eea40c68a7d1ac2fb0eb7d19b429ffc072a4b4504a8b80ba7297958cf205a176fd3c651d18f8ba01e2b41f3155715c9e20a34b474e36cc4cb2

Download Submit