Analysis
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max time kernel
36s -
max time network
42s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18/12/2024, 11:55
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
ff244b6459bdc8bb0b5680b6443b23632e7c49b308bca77e31ba122dd9ce982f.bin.dll
Resource
win7-20240903-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
ff244b6459bdc8bb0b5680b6443b23632e7c49b308bca77e31ba122dd9ce982f.bin.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
ff244b6459bdc8bb0b5680b6443b23632e7c49b308bca77e31ba122dd9ce982f.bin.dll
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Size
800KB
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MD5
484ce9a2cbea334e811fece169c5aeeb
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SHA1
cdbd48dad8df8d3ab0842e72dac96a20c3e08823
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SHA256
ff244b6459bdc8bb0b5680b6443b23632e7c49b308bca77e31ba122dd9ce982f
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SHA512
586d63a61603c9a0b6a9f1e441645e1f6aaeb5b8387fe74b28a18c64d63a81a1d5740ba79ace29368a35f5e8c55670aff239ef43f8f7fba68c005da589eab64b
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SSDEEP
12288:tVLOFSM++OeO+OeNhBBhhBBhlJ2//R18nBIs0I3cHGzVylK7Nb0tq0mxHu84NeKQ:tNOFSmKqEI3cHGzVylK7Nb0U1Hu8Wp
Score
10/10
Malware Config
Extracted
Path
C:\Program Files (x86)\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: 47077447-19df-413b-be30-0651ae4bee39
*!* 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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Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Grace-ppd.xrm-ms rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-ppd.xrm-ms rundll32.exe File opened for modification C:\Program Files\SearchClose.vssm rundll32.exe File opened for modification C:\Program Files\7-Zip\Lang\sl.txt rundll32.exe File opened for modification C:\Program Files\Windows Defender\it-IT\ProtectionManagement.mfl rundll32.exe File opened for modification C:\Program Files\Windows Media Player\de-DE\wmpnssui.dll.mui rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Threading.dll rundll32.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-processthreads-l1-1-1.dll rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_MAK_AE-pl.xrm-ms rundll32.exe File created C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_neutral_split.scale-100_8wekyb3d8bbwe\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.UI.Xaml.2.0_2.1810.18004.0_x64__8wekyb3d8bbwe\AppxBlockMap.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\mmsogdiplusim.dll rundll32.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jmap.exe rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_SubTrial-pl.xrm-ms rundll32.exe File opened for modification C:\Program Files\Mozilla Firefox\dependentlibs.list rundll32.exe File opened for modification C:\Program Files (x86)\Internet Explorer\iexplore.exe rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\RuntimeConfiguration.dll rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\AccessRuntime2019R_PrepidBypass-ppd.xrm-ms rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessDemoR_BypassTrial365-ppd.xrm-ms rundll32.exe File created C:\Program Files\Microsoft Office\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\index.html rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VSTO\vstoee90.tlb rundll32.exe File opened for modification C:\Program Files\Java\jdk-1.8\lib\jawt.lib rundll32.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-sysinfo-l1-1-0.dll rundll32.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javap.exe rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.ServiceModel.Http.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Services.Store.Engagement_10.0.18101.0_x86__8wekyb3d8bbwe\AppxManifest.xml rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\clrcompression.dll rundll32.exe File opened for modification C:\Program Files (x86)\Internet Explorer\uk-UA\ieinstal.exe.mui rundll32.exe File created C:\Program Files\Common Files\microsoft shared\VC\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\VC\msdia90.dll rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-processthreads-l1-1-1.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Advertising.Xaml_10.1808.3.0_x64__8wekyb3d8bbwe\AppxSignature.p7x rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Reflection.DispatchProxy.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Xml.Linq.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VCLibs.140.00.UWPDesktop_14.0.27629.0_x64__8wekyb3d8bbwe\mfc140kor.dll rundll32.exe File created C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_2019.1111.2029.0_neutral_~_8wekyb3d8bbwe\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ul-oob.xrm-ms rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\AppxManifest.xml rundll32.exe File opened for modification C:\Program Files (x86)\Internet Explorer\fr-FR\iexplore.exe.mui rundll32.exe File opened for modification C:\Program Files\EditEnter.aiff rundll32.exe File opened for modification C:\Program Files\Mozilla Firefox\pingsender.exe rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\AriaWrapper.winmd rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Runtime.Numerics.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\RuntimeConfiguration.winmd rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\Xbox.Foundation.Media.dll rundll32.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-file-l1-2-0.dll rundll32.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\JavaAccessBridge-64.dll rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ul-phn.xrm-ms rundll32.exe File opened for modification C:\Program Files\Java\jre-1.8\lib\jce.jar rundll32.exe File created C:\Program Files (x86)\Internet Explorer\es-ES\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\msdatasrc.dll rundll32.exe File opened for modification C:\Program Files (x86)\Windows Media Player\WMPMediaSharing.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\Windows.winmd rundll32.exe File created C:\Program Files (x86)\Common Files\Java\instructions_read_me.txt rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription1-ul-oob.xrm-ms rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\System.Net.WebSockets.Client.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Applications.Telemetry.Windows.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\People.BackgroundTasks.dll rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_neutral_split.scale-100_kzf8qxf38zg5c\AppxBlockMap.xml rundll32.exe File opened for modification C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ul-phn.xrm-ms rundll32.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\VungleSDK.winmd rundll32.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcr120.dll rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 rundll32.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.8qon5ol6c\DefaultIcon rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.8qon5ol6c rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.8qon5ol6c\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico" rundll32.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2104 NOTEPAD.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4792 wrote to memory of 3240 4792 rundll32.exe 82 PID 4792 wrote to memory of 3240 4792 rundll32.exe 82 PID 4792 wrote to memory of 3240 4792 rundll32.exe 82
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ff244b6459bdc8bb0b5680b6443b23632e7c49b308bca77e31ba122dd9ce982f.bin.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4792 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ff244b6459bdc8bb0b5680b6443b23632e7c49b308bca77e31ba122dd9ce982f.bin.dll,#12⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:3240
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\instructions_read_me.txt1⤵
- Opens file in notepad (likely ransom note)
PID:2104
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD541a7667f4751ff28f539491c0e57a2b3
SHA1b702f5f450455068440bb2d69b227d18847cf90a
SHA256bd95ab5f85d9639c6c9082599110f7e79c9cacb377639cfdb4e6ea54fbbf9738
SHA512725eb1905099d01b8addd49940c115b538a0af5d0046ebc116d56dc6fcb36e5a8971d1f3ba299a9f7ca277a6e52ab02920adda3815fb1e53de8128f1a3af967e