Analysis
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max time kernel
143s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
22-08-2023 14:43
Behavioral task
behavioral1
Sample
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe
Resource
win7-20230712-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe
Resource
win10v2004-20230703-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe
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Size
543KB
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MD5
53fdeb923b1890d29b8f29da77995938
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SHA1
a996ccd0d58125bf299e89f4c03ff37afdab33fc
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SHA256
ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e
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SHA512
7c78e880f3d2dfc163625ff3d0b4676aa6a083dbbeac270520679f6b21d1c449c5af720ca7b9a68b5b3309e2de8d586cfed5d9b3a78d006e6d981a1aaf88c535
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SSDEEP
12288:M1DTMHixr1moQqUiXINDl/m1s6BQio67VlAU:AzmoQqUiXw2s6yiVxR
Score
10/10
Malware Config
Extracted
Path
C:\Program Files\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
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Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (1682) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dlaksjdoiwq.jpg" ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files (x86)\Common Files\System\es-ES\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\System\ado\msadox.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Common Files\microsoft shared\ink\de-DE\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\System\es-ES\wab32res.dll.mui ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Internet Explorer\it-IT\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Microsoft Games\Purble Place\PurblePlaceMCE.png ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BL00098_.WMF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01039_.WMF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Microsoft.Office.Interop.InfoPath.SemiTrust.xml ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\orb.idl ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jre7\bin\ktab.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BD19695_.WMF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\7-Zip\Lang\nl.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Document Themes 14\Verve.thmx ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\UnprotectSplit.otf ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Common Files\Services\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\SELFCERT.EXE ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\Help\msitss55.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\CONTAB32.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ONLNTCOMLIB.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwritash.dat ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\Stationery\Wrinkled_Paper.gif ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\System\ado\msadrh15.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\OFFICE14\ACEWDAT.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\UnprotectRead.mp4 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Mozilla Firefox\application.ini ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AG00037_.GIF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Common Files\microsoft shared\TextConv\ja-JP\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\Stationery\Roses.htm ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\System\ado\msado26.tlb ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\CUP.WMF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Internet Explorer\networkinspection.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Microsoft Office\Office14\Bibliography\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\AUTHZAX.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\VideoLAN\VLC\plugins\audio_filter\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Adobe\Reader 9.0\Resource\SaslPrep\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\MS.PNG ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Mozilla Firefox\nssckbi.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Microsoft Games\More Games\fr-FR\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\TRANSLAT\MSB1CORE.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BL00152_.WMF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BL00274_.WMF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\BOAT.WMF ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSO0127.ACL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Icons\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\System\ado\msado20.tlb ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jre7\bin\installer.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\VideoLAN\VLC\locale\as_IN\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\VideoLAN\VLC\locale\ff\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\ink\mshwLatin.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\7-Zip\Lang\ku-ckb.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwrdeslm.dat ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\keytool.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\native2ascii.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Microsoft Games\Hearts\it-IT\Hearts.exe.mui ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\VideoLAN\VLC\locale\ru\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\psuser.dll ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Microsoft Office\Office14\VISSHE.DLL ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\hwresmlm.dat ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files\Microsoft Games\Solitaire\it-IT\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\orbd.exe ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\Common Files\microsoft shared\Help\1041\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File created C:\Program Files (x86)\readme.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe File opened for modification C:\Program Files\7-Zip\Lang\da.txt ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe -
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2572 vssadmin.exe 1232 vssadmin.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.basta ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico" ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 1824 vssvc.exe Token: SeRestorePrivilege 1824 vssvc.exe Token: SeAuditPrivilege 1824 vssvc.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 932 wrote to memory of 2252 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 29 PID 932 wrote to memory of 2252 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 29 PID 932 wrote to memory of 2252 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 29 PID 932 wrote to memory of 2252 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 29 PID 2252 wrote to memory of 2572 2252 cmd.exe 31 PID 2252 wrote to memory of 2572 2252 cmd.exe 31 PID 2252 wrote to memory of 2572 2252 cmd.exe 31 PID 2252 wrote to memory of 2572 2252 cmd.exe 31 PID 932 wrote to memory of 2536 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 34 PID 932 wrote to memory of 2536 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 34 PID 932 wrote to memory of 2536 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 34 PID 932 wrote to memory of 2536 932 ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe 34 PID 2536 wrote to memory of 1232 2536 cmd.exe 36 PID 2536 wrote to memory of 1232 2536 cmd.exe 36 PID 2536 wrote to memory of 1232 2536 cmd.exe 36 PID 2536 wrote to memory of 1232 2536 cmd.exe 36
Processes
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C:\Users\Admin\AppData\Local\Temp\ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe"C:\Users\Admin\AppData\Local\Temp\ae7c868713e1d02b4db60128c651eb1e3f6a33c02544cc4cb57c3aa6c6581b6e.exe"1⤵
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:932 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Windows\system32\vssadmin.exeC:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:2572
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Windows\System32\vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Windows\SysWOW64\vssadmin.exeC:\Windows\System32\vssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1232
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1824
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
401B
MD5ab8018847c007394feabfa8f14626ebc
SHA1d4669c9e29be5e1f32d7c30bf65ec8bd72566b2f
SHA2562967e1d97d32605fc5ace49a10828800fbbefcc1e010f6004a9c88ef3ecdad88
SHA5120f893ccd2add411ed93cade6519f9d2faf22831c60c279f355355406b72d92670a33b6b04362becb2344f3ff0b6ff979d9c078b24628c9de65cd421cf43402b9