bca56e44bcb88ef7541cd34d4b448b1d3bb63d4e482fbeb70cf95eff39d6ed52

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 14:19

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General

Target

b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
Size

50KB
MD5

b1b63a947c2ca7b91b7a9a90372ad2b0
SHA1

084e9f746549cb9dec483a02b64d918eeaf0429a
SHA256

bca56e44bcb88ef7541cd34d4b448b1d3bb63d4e482fbeb70cf95eff39d6ed52
SHA512

84dc1fe3bd7611b3c8ece0cabcf47c6c6b9cf162932ab5f49d7a97715f34176a258679447c09177b0c305572ae6169ac07ceeaf28ce3159fec5440dc664fe710
SSDEEP

768:W7BlphA7pARFbhL801VvM801Vvv7cYk27SKNx27SKNU:W7ZhA7pApw03vR03v4Yd

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4653) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Controls.Ribbon.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Grace-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\bwclassic.dotx.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\NL7MODELS0009.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\7-Zip\7z.sfx.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\PresentationFramework.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-pl.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\InkObj.dll.mui.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\meta-index.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\ReachFramework.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_Trial-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Retail-ul-phn.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-pl.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-ul-phn.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\WindowsFormsIntegration.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.Primitives.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QRYINT32.DLL.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.SqlServer.Types.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Windows.Forms.Design.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\plugin2\vcruntime140_1.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\Microsoft.VisualBasic.Forms.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\pt-PT\tipresx.dll.mui.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Forms.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\manifest.json.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Green.xml.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-pl.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-180.png.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_jpn.xml.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.VisualC.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\gstreamer-lite.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.DCF.DCF.x-none.msi.16.x-none.xml.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AugLoop\bundle.js.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-100.png.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Drawing.Primitives.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui\oskclearuibase.xml.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_OEM_Perp-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationProvider.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_OEM_Perp-ul-oob.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription3-ul-oob.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Extensions.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Csp.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.DataWarehouse.DLL.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART6.BDR.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription2-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_Grace-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Grace-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-pl.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\WindowsFormsIntegration.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Input.Manipulations.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\BI-Report.png.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Xaml.resources.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfr.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E2-0000-1000-0000000FF1CE.xml.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Subscription-ppd.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ul-oob.xrm-ms.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-black_scale-80.png.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.Win32.Primitives.dll.tmp	b1b63a947c2ca7b91b7a9a90372ad2b0N.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b1b63a947c2ca7b91b7a9a90372ad2b0N.exe

C:\Users\Admin\AppData\Local\Temp\b1b63a947c2ca7b91b7a9a90372ad2b0N.exe
"C:\Users\Admin\AppData\Local\Temp\b1b63a947c2ca7b91b7a9a90372ad2b0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
51KB

MD5
b8bfbcd273c11446d60c43af79ee1cea

SHA1
129f6d554fc19218f9228b9e4f85512e1bdc8a9c

SHA256
eebbb4bc8b86586aa4196dc965b0bebda050419951948883e383d720ae5ad5a1

SHA512
ee084eceb76210cfd322e592a8922cac6cabb5a909f9555d933bd52efd970e1deb581895ee12c13af8f6721d318be220114fe7cca725a3dc223bc7193feb007e

Download Submit
C:\Program Files\7-Zip\7-zip.dll.tmp

Filesize
149KB

MD5
3867a5b84a5b85a751c1b76f4bd75471

SHA1
efb54a815dd9ca166fd3fed567939e5cfd69addd

SHA256
30809d4272a19eb2a3ef283d84cc50817761816bbd772a76854000b6b26d35e0

SHA512
a5338ddf357f391d131a845bf5a85482f08a484f6331179552188a60408cf29d82a14791ceca5bc4e94e4ab7c9e370d7113d2c441e057f3625d4b785fe0fa1c7

Download Submit