blackbasta | 11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b

General

Target

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe
Size

2.6MB
MD5

523d6d251e5f8f9d7db1a3645967e72e
SHA1

aca4932ac18f5c0227ee85e01da35a0b66285424
SHA256

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b
SHA512

f4910a6c30e3f18564e77e47f5a2d0172775a880e39d93629de5c4094b22efc90c0d5c5518ed5952c7eeeb8861b55b2bdfac5a402fa11d1dac205d986046e05b
SSDEEP

49152:vFDi8DIuiRIGgmGjunBD95D8L5ZtGtXaP4La47RvmcfXGhCz7CNyHbn877QZI1w:vXxYSm9BfDCn4tqP4W2RvhfXGQzOQHbJ

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: 66e18026-1453-4fe2-8621-d51fcc9dc54e *!* 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

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype	explorer.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

explorer.exe

description ioc process

File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI explorer.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI	explorer.exe

Drops file in Program Files directory 64 IoCs

Processes:

explorer.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft Office\MEDIA\instructions_read_me.txt	explorer.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\CPU.Gadget\images\dial_lrg.png	explorer.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\fr-FR\js\currency.js	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\Sounds\People\COUGH.WAV	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Apothecary.thmx	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD00438_.WMF	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ACCWIZ\ACWZLIB.ACCDE	explorer.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\drag.png	explorer.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\playlist\anevia_xml.luac	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\REMOTES.ICO	explorer.exe
File created	C:\Program Files\VideoLAN\VLC\locale\fi\LC_MESSAGES\instructions_read_me.txt	explorer.exe
File opened for modification	C:\Program Files (x86)\Windows Media Player\it-IT\WMPDMC.exe.mui	explorer.exe
File created	C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\instructions_read_me.txt	explorer.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Data.Linq.dll	explorer.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\de\System.RunTime.Serialization.Resources.dll	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\ONBttnOL.dll	explorer.exe
File created	C:\Program Files\Microsoft Games\Minesweeper\de-DE\instructions_read_me.txt	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00423_.WMF	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Flow.xml	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGMASTHD.DPV	explorer.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Scenes_LOOP_BG.wmv	explorer.exe
File created	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\SaslPrep\instructions_read_me.txt	explorer.exe
File created	C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\es-ES\js\instructions_read_me.txt	explorer.exe
File created	C:\Program Files\Windows Sidebar\ja-JP\instructions_read_me.txt	explorer.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Cambridge_Bay	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\CONVERT\DELIMDOS.FAE	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\PS2SWOOS.POC	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME52.CSS	explorer.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\it-IT\gadget.xml	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BL00262_.WMF	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0200467.WMF	explorer.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui	explorer.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR48F.GIF	explorer.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\TipRes.dll	explorer.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\VGX\VGX.dll	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AG00158_.GIF	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WB01751_.GIF	explorer.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\settings_right_hover.png	explorer.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\images\prev_hov.png	explorer.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\lib\security\blacklist	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD00965_.WMF	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\WINWORD.DEV_COL.HXC	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\WWINTL.DLL.IDX_DLL	explorer.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\EXPEDITN\THMBNAIL.PNG	explorer.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Weather.Gadget\images\undocked_gray_thunderstorm.png	explorer.exe
File opened for modification	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\de\System.Net.Resources.dll	explorer.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\sv\LC_MESSAGES\vlc.mo	explorer.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\Currency.Gadget\es-ES\js\instructions_read_me.txt	explorer.exe
File created	C:\Program Files\Windows Sidebar\it-IT\instructions_read_me.txt	explorer.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\goopdateres_da.dll	explorer.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Help\1046\hxdsui.dll	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\NotifierDisableDownArrow.jpg	explorer.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\VSTA\Pipeline.v10.0\AddInViews\Microsoft.VisualStudio.Tools.Applications.Runtime.v9.0.dll	explorer.exe
File created	C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\ja\instructions_read_me.txt	explorer.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\Ole DB\fr-FR\msdaorar.dll.mui	explorer.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\Locales\ar.pak	explorer.exe
File opened for modification	C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\fr\WindowsFormsIntegration.resources.dll	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\GRAPH.ICO	explorer.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\CoolType.dll	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01434_.WMF	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH01931J.JPG	explorer.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Perf_Scenes_Subpicture1.png	explorer.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR13F.GIF	explorer.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exeexplorer.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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

Processes:

vssadmin.exe

pid process

2548 vssadmin.exe

pid	process
2548	vssadmin.exe

Modifies registry class 3 IoCs

Processes:

explorer.exe

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

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

notepad.exe

pid process

2096 notepad.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

explorer.exe

pid process

1224 explorer.exe
1224 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2120 vssvc.exe
Token: SeRestorePrivilege 2120 vssvc.exe
Token: SeAuditPrivilege 2120 vssvc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

pid process

2360 11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

pid	process
2096	notepad.exe

pid	process
1224	explorer.exe
1224	explorer.exe

description	pid	process
Token: SeBackupPrivilege	2120	vssvc.exe
Token: SeRestorePrivilege	2120	vssvc.exe
Token: SeAuditPrivilege	2120	vssvc.exe

pid	process
2360	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exeexplorer.execmd.exe

description	pid	process	target process
PID 2360 wrote to memory of 1224	2360	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe	explorer.exe
PID 2360 wrote to memory of 1224	2360	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe	explorer.exe
PID 2360 wrote to memory of 1224	2360	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe	explorer.exe
PID 2360 wrote to memory of 1224	2360	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe	explorer.exe
PID 2360 wrote to memory of 1224	2360	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe	explorer.exe
PID 2360 wrote to memory of 1224	2360	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe	explorer.exe
PID 1224 wrote to memory of 2404	1224	explorer.exe	cmd.exe
PID 1224 wrote to memory of 2404	1224	explorer.exe	cmd.exe
PID 1224 wrote to memory of 2404	1224	explorer.exe	cmd.exe
PID 1224 wrote to memory of 2404	1224	explorer.exe	cmd.exe
PID 2404 wrote to memory of 2548	2404	cmd.exe	vssadmin.exe
PID 2404 wrote to memory of 2548	2404	cmd.exe	vssadmin.exe
PID 2404 wrote to memory of 2548	2404	cmd.exe	vssadmin.exe
PID 2404 wrote to memory of 2548	2404	cmd.exe	vssadmin.exe

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\11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe
"C:\Users\Admin\AppData\Local\Temp\11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - Adds Run key to start application
  - Drops desktop.ini file(s)
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1224
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2404
  - - C:\Windows\system32\vssadmin.exe
      C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2548
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c start /MAX notepad.exe c:\instructions_read_me.txt
    3⤵
    PID:1948
  - - C:\Windows\SysWOW64\notepad.exe
      notepad.exe c:\instructions_read_me.txt
      4⤵
      Opens file in notepad (likely ransom note)
      PID:2096

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1

T1047

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Direct Volume Access

1

T1006

Indicator Removal

2

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\instructions_read_me.txt

Filesize
1KB

MD5
4fd4c95249ac102be0c05c6a1a329cb6

SHA1
4be08872b8145d645c2e6fa80a1c6921b8d4a902

SHA256
df149c57c4fe9dd19d37c27014cdb7a6a1c72f19f555c83d9b87210c132492d5

SHA512
b66b202beae41a49c862ca9b08b4010c302b67014cb73907fb27a8e5c87c9b0c9a1e661cc9706a60a97cd2c414e2ee2cbe39b07803e0f8d03ad311fb148c65a8

Download Submit
memory/1224-17-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-16-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-4-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-6-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-14-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-13-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-2-0x0000000000150000-0x00000000001FD000-memory.dmp

Filesize
692KB

Download
memory/1224-0-0x0000000000150000-0x00000000001FD000-memory.dmp

Filesize
692KB

Download
memory/1224-15-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-18-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-19-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-20-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-3-0x0000000000150000-0x00000000001FD000-memory.dmp

Filesize
692KB

Download
memory/1224-11848-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download
memory/1224-11864-0x0000000002790000-0x0000000002873000-memory.dmp

Filesize
908KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads