blackbasta | 3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e

Analysis

max time kernel
142s
max time network
119s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
23-07-2024 16:12

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General

Target

3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
Size

928KB
MD5

2dc4adf06247b4ed9031a53ef910626c
SHA1

789437e946b3e8d1ccd14ee70e42c7d89ba054b2
SHA256

3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e
SHA512

9e6eaa4b27e2d6bc1306c33e74465256fab086972680d3a0014cafca8f22bbf865ffaa0f81332ffef83287252faf2ca0c7f369d11412b19ffb57e8e72ea5e0ae
SSDEEP

24576:oUY29aeV/XqzB+qv6w8zJx/W2nz9dPOmX:oUYMPqzFvT8/W2nznP

Score

10^/10

blackbasta defense_evasion discovery execution impact ransomware

Malware Config

Extracted

Path

C:\ProgramData\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/ Your company id for log in: 41bdf082-8936-4e21-9f70-5446160a730f

URLs

https://aazsbsgya565vlu2c6bzy6yfiebkcbtvvcytvolt33s77xypi7nypxyd.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 (7239) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dlaksjdoiwq.jpg"	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\PublicAssemblies\Microsoft.VisualStudio.Tools.Applications.DesignTime.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\EXSEC32.DLL	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\bin\javafx-font.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107146.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File created	C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\en-US\readme.txt	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\Passport_PAL.wmv	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\+NewSQLServerConnection.odc	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File created	C:\Program Files\VideoLAN\VLC\locale\ja\readme.txt	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0174635.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.COM.XML	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\DOCL.ICO	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.e4.ui.widgets.nl_zh_4.4.0.v20140623020002.jar	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Asia\Dubai	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\ja\Microsoft.Build.Utilities.v3.5.resources.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\bin\net.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\EXP_XPS.DLL	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\ECHO\THMBNAIL.PNG	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\msadc\de-DE\msdaprsr.dll.mui	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.intro.nl_ja_4.4.0.v20140623020002.jar	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\bin\rmiregistry.exe	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.COM.HK.XML	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGWEBREF.XML	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\intf\cli.luac	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONBttnIELinkedNotes.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA01473_.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0149407.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\InfoPathOM\Microsoft.Office.Infopath.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\VSTO\10.0\1033\VSTOLoaderUI.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Pacific\Niue	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\IPDESIGN.DLL	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0152892.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\MSACCESS.HXS	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0332364.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Templates\1033\ClassicPhotoAlbum.potx	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\create_form.gif	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\MSOCFU.DLL	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File created	C:\Program Files\VideoLAN\VLC\locale\ps\readme.txt	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\ccme_base.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\da\LC_MESSAGES\vlc.mo	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Stationery\Roses.htm	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0235241.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\SETLANG.HXS	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\OOFS.ICO	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Asia\Baku	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\Welcome.html	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\GROOVE_COL.HXT	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Common Files\Adobe AIR\Versions\1.0\NPSWF32.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\TN00018_.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Net.dll	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Asia\Kuala_Lumpur	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File created	C:\Program Files\Common Files\Microsoft Shared\OFFICE14\readme.txt	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02228_.WMF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0382930.JPG	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\720x480icongraphic.png	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR50B.GIF	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\ACTIVITS.ICO	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.browser.jdp.ja_5.5.0.165303.jar	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\SystemV\PST8	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\THANKS.txt	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Microsoft Games\Chess\fr-FR\Chess.exe.mui	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files\Microsoft Office\Office14\1033\Mso Example Intl Setup File B.txt	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02208U.BMP	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
File created	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.feature_3.9.0.v20140827-1444\readme.txt	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe

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	vssadmin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Interacts with shadow copies 3 TTPs 2 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
2676	vssadmin.exe
2164	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2724	vssvc.exe
Token: SeRestorePrivilege	2724	vssvc.exe
Token: SeAuditPrivilege	2724	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 1868	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	30
PID 2820 wrote to memory of 1868	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	30
PID 2820 wrote to memory of 1868	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	30
PID 2820 wrote to memory of 1868	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	30
PID 1868 wrote to memory of 2676	1868	cmd.exe	32
PID 1868 wrote to memory of 2676	1868	cmd.exe	32
PID 1868 wrote to memory of 2676	1868	cmd.exe	32
PID 1868 wrote to memory of 2676	1868	cmd.exe	32
PID 2820 wrote to memory of 2544	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	35
PID 2820 wrote to memory of 2544	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	35
PID 2820 wrote to memory of 2544	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	35
PID 2820 wrote to memory of 2544	2820	3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe	35
PID 2544 wrote to memory of 2164	2544	cmd.exe	37
PID 2544 wrote to memory of 2164	2544	cmd.exe	37
PID 2544 wrote to memory of 2164	2544	cmd.exe	37
PID 2544 wrote to memory of 2164	2544	cmd.exe	37

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\3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe
"C:\Users\Admin\AppData\Local\Temp\3d8713641264c41cd6784c5569c1447299fba88633070e40e70bb3ae2b4c5a4e.exe"
1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2820
- 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:1868
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2676
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Windows\SysWOW64\vssadmin.exe
    C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
    3⤵
    - System Location Discovery: System Language Discovery
    - Interacts with shadow copies
    PID:2164

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2724

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

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact