6f5f96945eb1488c8ed4bad9bc4fc55852a93520a7491568fcb7baa485d1fdd9

Analysis

max time kernel
120s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 13:05

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General

Target

8b3ade754e009c3bbcae179dfbecc3f0N.exe
Size

89KB
MD5

8b3ade754e009c3bbcae179dfbecc3f0
SHA1

1f8f1a02f28b86278107e67717833b35ab8ca4df
SHA256

6f5f96945eb1488c8ed4bad9bc4fc55852a93520a7491568fcb7baa485d1fdd9
SHA512

b4154aa5a4bab62c79b8ac6a9e959ffbf47700c65413cb9d9466626237958c30434d5a8dd854010154d7a075e549c30051968c6d21d713370621ddd0b24264e5
SSDEEP

1536:V7Zf/FAxTWtnMdyGdyoIOIPwXwRsDTsDa:fnyGnCIOIPwXwRsDTsDa

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4517) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/556-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000800000002340f-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/556-856-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Office Theme.thmx.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-pl.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-180.png.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Primitives.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\WindowsFormsIntegration.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsoundds.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_sw.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Trial-ppd.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_KMS_Client-ul.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemXmlLinq.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\sRGB.pf.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunjce_provider.jar.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Configuration.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Tools.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_terms_dict.txt.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\UIAutomationClientSideProviders.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-processthreads-l1-1-1.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-white_scale-180.png.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOMessageProvider.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Aero2.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\UIAutomationProvider.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.scale-180.png.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledb32r.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_it.properties.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_SubTrial-pl.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.common.16.xml.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Excel.Excel.x-none.msi.16.x-none.xml.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Globalization.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\webkit.md.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Violet.xml.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail3-ppd.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.ProviderShared.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-GB\tipresx.dll.mui.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\JAWTAccessBridge-64.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\w2k_lsa_auth.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\msquic.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\DirectWriteForwarder.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.ReportingServices.Interfaces.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-console-l1-1-0.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Input.Manipulations.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\PresentationUI.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\ecc.md.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msdaprsr.dll.mui.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Sockets.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Serialization.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Controls.Ribbon.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\WindowsBase.resources.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\tzmappings.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientOSub_eula.txt.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ServiceWatcherSchedule.xml.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.CompilerServices.VisualC.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Grace-ppd.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TabTip.exe.mui.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.DriveInfo.dll.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\jmxremote.password.template.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\nashorn.jar.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-pl.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-black_scale-80.png.tmp	8b3ade754e009c3bbcae179dfbecc3f0N.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	8b3ade754e009c3bbcae179dfbecc3f0N.exe

C:\Users\Admin\AppData\Local\Temp\8b3ade754e009c3bbcae179dfbecc3f0N.exe
"C:\Users\Admin\AppData\Local\Temp\8b3ade754e009c3bbcae179dfbecc3f0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:556

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
89KB

MD5
650477f224687fe974d6c7b14af19ea5

SHA1
cb701b13fbddc777dbbd6fd5537895cb1cb26727

SHA256
a575840bd5bea2afb65a4f97898995fdd3d6177e903b3cf971f063e42bebc3c2

SHA512
b812c90d0914c9a6f74b0c4dc80f51718ca9c554ecfcaaa9778957761e1ad8bb2180d305a35e4c21753819c4dc343be8c6840c628144123f29856b3b0494e736

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

Filesize
188KB

MD5
500a35327960c6b73360dfb5b291c636

SHA1
21e0d699f13962ef46e7bf537b6a5a56604f6f74

SHA256
6c35a3d436dad247fcc34c0870afafcf29092239996e0d5100104909fe72ec0a

SHA512
a44912eef84b48c93cdcec1181ffe4edf48ff961e1b74b10facd424b28a5b1fe4ff159022cafb1901f565f439ae4cc43d863258324252760c3bf824ac8714e49

Download Submit
memory/556-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/556-856-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download