blackbasta | 7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a

General

Target

7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
Size

543KB
MD5

998022b70d83c6de68e5bdf94e0f8d71
SHA1

b87a947f3e85701fcdadd733e9b055a65a3b1308
SHA256

7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a
SHA512

2744b77f951bd2bb34b094dd3b54fcf8f7dca76e03c745809edc045749c814c7d88c9ddd69ad684a1c156716afae76b5ebec3f932d0f2a72b242878134f65647
SSDEEP

12288:M1DTMHixr1moQqUiXINDl/m1s6BQio67VlA:AzmoQqUiXw2s6yiVx

Score

10^/10

blackbasta ransomware

Malware Config

Extracted

Path

C:\readme.txt

Ransom Note

Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom You can contact us and decrypt one file for free on this TOR site (you should download and install TOR browser first https://torproject.org) https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion:80/ Your company id for log in: ba7a7058-3531-4b67-bae6-d602e9110361

URLs

https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.onion:80/

Signatures

Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
ransomware blackbasta
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 3 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\StopConnect.crw => C:\Users\Admin\Pictures\StopConnect.crw.basta	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File renamed	C:\Users\Admin\Pictures\GroupUnregister.raw => C:\Users\Admin\Pictures\GroupUnregister.raw.basta	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File renamed	C:\Users\Admin\Pictures\CompleteRename.png => C:\Users\Admin\Pictures\CompleteRename.png.basta	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dlaksjdoiwq.jpg"	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

Drops file in Program Files directory 64 IoCs

Processes:

7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

description	ioc	process
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe.sig	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\en-US\F12Tools.dll.mui	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Oriel.thmx	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSN.ICO	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OUTLRPC.DLL	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0101862.BMP	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PROOF\MSSP7EN.LEX	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0297757.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02041_.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1036\MSO.ACL	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BORDERS\MSART2.BDR	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\micaut.dll.mui	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files\Microsoft Games\Purble Place\es-ES\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00737_.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files\DVD Maker\es-ES\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OSPP.HTM	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Dot.png	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Heart_VideoInset.png	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files\Microsoft Games\Multiplayer\Checkers\es-ES\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\TRANSLAT\MSB1CORE.DLL	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SPACE_01.MID	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Effects\Metro.eftx	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0291984.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BORDERS\MSART3.BDR	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACERCLR.DLL	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\EADOCUMENTAPPROVAL_REVIEW.XSN	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Apothecary.thmx	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\ahclient.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107718.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0400005.PNG	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PAGESIZE\PGLBL087.XML	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\passportcover.png	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files (x86)\Internet Explorer\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\BCSLaunch.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\msvcr100.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0287645.JPG	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA00798_.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02437_.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Concourse.thmx	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.71\goopdateres_zh-TW.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0145895.JPG	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00305_.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\EXCEL_COL.HXT	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\IEAWSDC.DLL	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\Microsoft Games\Minesweeper\es-ES\Minesweeper.exe.mui	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01160_.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0145810.JPG	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\SWBELL.NET.XML	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGWEBSBR.XML	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files\Internet Explorer\en-US\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nssckbi.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\Mozilla Firefox\osclientcerts.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\imjplm.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0382954.JPG	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files (x86)\Common Files\microsoft shared\MSInfo\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\libvlc.dll	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AG00176_.GIF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0198020.WMF	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH03224I.JPG	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\CATWIZ11.POC	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files\Microsoft Games\Chess\en-US\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
File created	C:\Program Files\VideoLAN\VLC\locale\fa\readme.txt	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

944 vssadmin.exe
2000 vssadmin.exe

pid	process
944	vssadmin.exe
2000	vssadmin.exe

Modifies registry class 3 IoCs

Processes:

7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1716 vssvc.exe
Token: SeRestorePrivilege 1716 vssvc.exe
Token: SeAuditPrivilege 1716 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	1716	vssvc.exe
Token: SeRestorePrivilege	1716	vssvc.exe
Token: SeAuditPrivilege	1716	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.execmd.execmd.exe

description	pid	process	target process
PID 1080 wrote to memory of 908	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 1080 wrote to memory of 908	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 1080 wrote to memory of 908	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 1080 wrote to memory of 908	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 908 wrote to memory of 944	908	cmd.exe	vssadmin.exe
PID 908 wrote to memory of 944	908	cmd.exe	vssadmin.exe
PID 908 wrote to memory of 944	908	cmd.exe	vssadmin.exe
PID 908 wrote to memory of 944	908	cmd.exe	vssadmin.exe
PID 1080 wrote to memory of 1152	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 1080 wrote to memory of 1152	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 1080 wrote to memory of 1152	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 1080 wrote to memory of 1152	1080	7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe	cmd.exe
PID 1152 wrote to memory of 2000	1152	cmd.exe	vssadmin.exe
PID 1152 wrote to memory of 2000	1152	cmd.exe	vssadmin.exe
PID 1152 wrote to memory of 2000	1152	cmd.exe	vssadmin.exe
PID 1152 wrote to memory of 2000	1152	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe
"C:\Users\Admin\AppData\Local\Temp\7883f01096db9bcf090c2317749b6873036c27ba92451b212b8645770e1f0b8a.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1080

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\system32\vssadmin.exe
C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:944

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\vssadmin.exe
C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:2000

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1716

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Defacement

1

T1491

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Downloads

memory/908-55-0x0000000000000000-mapping.dmp

Download
memory/944-56-0x0000000000000000-mapping.dmp

Download
memory/1080-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1152-57-0x0000000000000000-mapping.dmp

Download
memory/2000-58-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads