Analysis
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max time kernel
98s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
18-12-2024 11:58
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe
Resource
win7-20240903-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
13 signatures
150 seconds
General
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Target
ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe
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Size
890KB
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MD5
890962e6b129a2fbd5d7c56fedc68f3f
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SHA1
cae5a763110d1802385a537c5fd7cca5500a1811
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SHA256
ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a
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SHA512
501c501029f2749e9ed787440934ecdd2808e8d707f07d65d7c4a6d3659cdd46200796501ef67ab35f98d4f315469e45ca20fa61212757662951b0cc60007a63
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SSDEEP
24576:weMarHAeGkDHFQ2M0Z9MuOQT7sh8/JLVjk:GeGwHF19MuOQchgJLVjk
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: 51095f05-2bb8-4b46-9d85-83610c65bdc2
*!* 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
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Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
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Blackbasta family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (3838) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe" ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\EXP_XPS.DLL ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files\Internet Explorer\SIGNUP\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Angles.thmx ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\circleround_videoinset.png ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0105244.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0185774.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00478_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Internet Explorer\jsdbgui.dll ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\Windows Media Player\ja-JP\wmplayer.exe.mui ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSPUB.EXE ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0341534.JPG ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\7-Zip\Lang\vi.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107658.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files (x86)\Windows Sidebar\it-IT\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Green Bubbles.htm ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files\Microsoft Games\Solitaire\en-US\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0387882.JPG ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PAGESIZE\PGMN102.XML ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files\Windows Defender\es-ES\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Triedit\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0152626.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0178348.JPG ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PAGESIZE\PGLBL058.XML ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ASCIIENG.LNG ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\Windows Mail\ja-JP\msoeres.dll.mui ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0152594.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0187881.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.COM.SG.XML ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\Windows Defender\de-DE\MsMpRes.dll.mui ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA02400_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02829J.JPG ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0199429.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\7-Zip\Lang\tg.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\CDLMSO.DLL ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files\VideoLAN\VLC\hrtfs\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01146_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MEDIA\DRUMROLL.WAV ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\Mozilla Firefox\IA2Marshal.dll ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files\Common Files\Microsoft Shared\Triedit\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File created C:\Program Files\Windows NT\TableTextService\en-US\instructions_read_me.txt ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107488.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0294991.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0341559.JPG ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\TN00411_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Internet Explorer\networkinspection.dll ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA00808_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02398U.BMP ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PROOF\MSHY7ES.DLL ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BD19582_.GIF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AG00167_.GIF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\TN01165_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OneNote\SendToOneNoteNames.gpd ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\TWRECC.DLL ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BD19695_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0241043.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0285444.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEWSS.DLL ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\AUDIOSEARCHLTS.DLL ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwresmlm.dat ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01172_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA01123_.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Theme Colors\Slipstream.xml ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0229385.WMF ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.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.
pid Process 2104 vssadmin.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.atzsknswj\DefaultIcon ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.atzsknswj ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.atzsknswj\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico" ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 1188 vssvc.exe Token: SeRestorePrivilege 1188 vssvc.exe Token: SeAuditPrivilege 1188 vssvc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3052 wrote to memory of 2128 3052 ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe 31 PID 3052 wrote to memory of 2128 3052 ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe 31 PID 3052 wrote to memory of 2128 3052 ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe 31 PID 3052 wrote to memory of 2128 3052 ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe 31 PID 2128 wrote to memory of 2104 2128 cmd.exe 33 PID 2128 wrote to memory of 2104 2128 cmd.exe 33 PID 2128 wrote to memory of 2104 2128 cmd.exe 33 PID 2128 wrote to memory of 2104 2128 cmd.exe 33 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe"C:\Users\Admin\AppData\Local\Temp\ad04b4b8eb9fe76ba316335769d5de3d3c221dec5c5506c984a5ba77c2492c0a.bin.exe"1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128 -
C:\Windows\system32\vssadmin.exeC:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:2104
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1188
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD556a82feafd277c12b2ebbc48a7d96b1b
SHA189d37649c06e1979f31425b4e0def6f5f01f347a
SHA256d790e19e8f2f0ac6ad9a69561a1d02348924e5f0b7c173213932347fc4e62218
SHA51280676d8565c540e14151424f9fe10c2a1893aa40c58f04c4609e8bfcb04ec3fb617b20db4b9a56060f1966b09d92f58d9ba0e6af9d48daab7b9bd3d3bf9dce8c