5bb47e39ee1a56d6ec22c6a727b8f15879369c93ed2fd2aa12b9b6ed68861397

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, 15:03

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General

Target

b8403603a06985c7f9c5f3ec942509e0N.exe
Size

50KB
MD5

b8403603a06985c7f9c5f3ec942509e0
SHA1

0ca97968eac3bddf1ef53d36011789cc2815cb50
SHA256

5bb47e39ee1a56d6ec22c6a727b8f15879369c93ed2fd2aa12b9b6ed68861397
SHA512

654eb60b715f8c271661e1073c8266344a024cbffead26182642abdacec107b017c7fc4078764dc16dc8e1e90ac2cc736927c28613093ebf93a4c919ae517050
SSDEEP

768:W7BlphA7pARFbhM0Kkq81LOyq81LOd+QRUAeAE:W7ZhA7pApM21LOA1LOTRUAeAE

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4658) 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.NETCore.App\7.0.16\System.Text.Encoding.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\lcms.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win7.wmv.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessDemoR_BypassTrial365-ppd.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Subscription-ppd.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_MAK-ul-oob.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\IGX.DLL.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-math-l1-1-0.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\it\msipc.dll.mui.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ul-phn.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sk.pak.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-white_scale-180.png.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ms-my.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\ShapeCollector.exe.mui.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.TypeExtensions.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Xaml.resources.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\WindowsFormsIntegration.resources.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.Design.Editors.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\jvm.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RCom.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Author2XML.XSL.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Grace-ul-oob.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\plugin2\vcruntime140_1.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Corbel.xml.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymxb.ttf.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.scale-100.png.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Internet Explorer\SIGNUP\install.ins.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART11.BDR.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ko\msipc.dll.mui.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Windows.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_MAK_AE-ppd.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ul-oob.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-white_scale-100.png.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-180.png.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\UIAutomationClientSideProviders.resources.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.SecureString.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-libraryloader-l1-1-0.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\icu_web.md.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management\jmxremote.password.template.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GFX.DLL.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\es-ES\msdasqlr.dll.mui.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.Unsafe.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.Xml.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.AppContext.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\WindowsFormsIntegration.resources.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\th.pak.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\access-bridge-64.jar.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsita.xml.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Retail-ul-phn.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Trial-pl.xrm-ms.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebProxy.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\WindowsBase.resources.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\npt.dll.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART7.BDR.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Common Files\System\ado\msado28.tlb.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ja.properties.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\linessimple.dotx.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\linesstylish.dotx.tmp	b8403603a06985c7f9c5f3ec942509e0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as90.xsl.tmp	b8403603a06985c7f9c5f3ec942509e0N.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	b8403603a06985c7f9c5f3ec942509e0N.exe

C:\Users\Admin\AppData\Local\Temp\b8403603a06985c7f9c5f3ec942509e0N.exe
"C:\Users\Admin\AppData\Local\Temp\b8403603a06985c7f9c5f3ec942509e0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4496

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
50KB

MD5
b7331e597b56c2c4ae972f858a20dda0

SHA1
4fc2ae2a8f4e4c0714799b7625f9d786d68ced5c

SHA256
7a0358445a8c3d9547a17a99adbfc3acbb9fed6e8b3c52d8089fe3096ea84a85

SHA512
5b2f940bfffd8ba37173a1cb621167e398a621482a4f0ef8a89dd3a85bdd92153227026677fc0de71d77d2e1ccc21fac9ec9be2ad3ac5a03192f2f07506e6fa4

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

Filesize
149KB

MD5
210d950e183fea449ae4b7db4aa2829b

SHA1
0d37ef818f70ff563c9c7912911f52e512f2663c

SHA256
220149539d89140b82b6794661be2ed43ca0e80090d81a84c9fb2c95606ef305

SHA512
9c29c6df2429b367aacee1e524a158462a35857725889f2a9b54232806b230361151da97f0151ca068e568e772c824f04e288e354df32c600dc31e23c3e528d1

Download Submit