blackbasta | df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415

Analysis

max time kernel
182s
max time network
126s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14-05-2024 05:00

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General

Target

df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
Size

949KB
MD5

a292fee8d8db83711e72c06d6f82562d
SHA1

82f88c1af036181ee4e92a2f9338c152d1ff0c58
SHA256

df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415
SHA512

50a63500809fdc218b3d1cdc2cf402261e1c2d63c6f66088c857b03f6c7e7165835f9959b9d8200541e6f69dd149bdc0f7c0a0801caaeccfe0a9807e7f8289f1
SSDEEP

12288:RcOlvT7Zom3rITxaVDrd5vUa69Ghj91nlQocyW7/P6E4kKjqnes9PBVW/g:RDJJDbcJ90jtH0bP6ELVne2

Score

10^/10

blackbasta defense_evasion 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: 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/

Signatures

Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
ransomware 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 (9529) 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 2 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

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	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\macroprogress.gif	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\ink\ja-JP\micaut.dll.mui	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx.zh_CN_5.5.0.165303.jar	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\fr\WindowsFormsIntegration.resources.dll	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\plugins\codec\libqsv_plugin.dll	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\SCHDRESN.CFG	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\vlm_export.html	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Dawson_Creek	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Mozilla Firefox\AccessibleHandler.dll	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE03464_.WMF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\3.png	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BL00148_.WMF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\RSSFeeds.Gadget\de-DE\flyout.html	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Stationery\SoftBlue.jpg	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0172067.WMF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\en-US\TipRes.dll.mui	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\35.png	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\es-ES\js\weather.js	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_GreenTea.gif	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-ui_ja.jar	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\de-DE\wab32res.dll.mui	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MEDIA\WHOOSH.WAV	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Calendar.Gadget\images\rings-dock.png	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0106146.WMF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\MessageAttachmentIconImages.jpg	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Brunei	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\MoveSet.potm	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\setting_back.png	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File created	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\en-US\css\instructions_read_me.txt	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\PFM\instructions_read_me.txt	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Honolulu	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\OCEAN_01.MID	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File created	C:\Program Files (x86)\Microsoft Office\Office14\Groove\Sounds\instructions_read_me.txt	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Common Files\Adobe AIR\Versions\1.0\Thawte Root Certificate.cer	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD10300_.GIF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\Office Setup Controller\OSetupPS.dll	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Asia\Irkutsk	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Microsoft Games\Mahjong\en-US\Mahjong.exe.mui	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\GIFT.XML	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\XLINTL32.DLL	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\VIEW.ICO	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\PROGRAM.XML	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Mozilla Firefox\api-ms-win-crt-string-l1-1-0.dll	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\PICTPH.POC	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18225_.WMF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME03.CSS	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\DAO\dao360.dll	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0382942.JPG	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\ja-JP\oledb32r.dll.mui	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Memories\btn-previous-static.png	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0198377.WMF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\INFOPATH_K_COL.HXK	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\QuickStyles\DefaultBlackAndWhite.dotx	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\es-ES\WMPMediaSharing.dll.mui	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File created	C:\Program Files\VideoLAN\VLC\lua\modules\instructions_read_me.txt	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\en-US\js\picturePuzzle.js	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Lime\TAB_ON.GIF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02749G.GIF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\de-DE\css\settings.css	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\msadc\adcjavas.inc	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT+11	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File created	C:\Program Files\Internet Explorer\images\instructions_read_me.txt	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BS00438_.WMF	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe

Interacts with shadow copies 2 TTPs 1 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

pid	Process
2292	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vokou2s5g\DefaultIcon	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vokou2s5g	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vokou2s5g\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1932	notepad.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1620	vssvc.exe
Token: SeRestorePrivilege	1620	vssvc.exe
Token: SeAuditPrivilege	1620	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 1648	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	28
PID 1276 wrote to memory of 1648	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	28
PID 1276 wrote to memory of 1648	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	28
PID 1276 wrote to memory of 1648	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	28
PID 1648 wrote to memory of 2292	1648	cmd.exe	30
PID 1648 wrote to memory of 2292	1648	cmd.exe	30
PID 1648 wrote to memory of 2292	1648	cmd.exe	30
PID 1648 wrote to memory of 2292	1648	cmd.exe	30
PID 1276 wrote to memory of 548	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	37
PID 1276 wrote to memory of 548	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	37
PID 1276 wrote to memory of 548	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	37
PID 1276 wrote to memory of 548	1276	df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe	37
PID 548 wrote to memory of 1932	548	cmd.exe	39
PID 548 wrote to memory of 1932	548	cmd.exe	39
PID 548 wrote to memory of 1932	548	cmd.exe	39
PID 548 wrote to memory of 1932	548	cmd.exe	39

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\df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe
"C:\Users\Admin\AppData\Local\Temp\df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415.exe"
1⤵
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1276
- 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:1648
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2292
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /MAX notepad.exe c:\instructions_read_me.txt
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:548
- - C:\Windows\SysWOW64\notepad.exe
    notepad.exe c:\instructions_read_me.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1932

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact