a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295

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
18/09/2024, 09:02

Sharing

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Report Analysis Logs

General

Target

a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
Size

37KB
MD5

1e05d943e0cf193cdd130edc3543bf10
SHA1

8ee9da7cf94a2b91c06a3019a2633b0173394893
SHA256

a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295
SHA512

ae3957fb60cf6986203802289b5b79a87ec4a9f0e38a9650e73846553101168dfc05feb302df8f541125bb5030459682b04d8aa77dfb0bf75527f124a39c12d9
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATNyHF/MF/6m0mdGRGLzq:CTW7JJZENTNyl2Sm0mC

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4661) 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/1088-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000b0000000233dc-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/1088-1023-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_ko.properties.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-pl.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientVolumeLicense_eula.txt.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Calendars.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.Serialization.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Office 2007 - 2010.xml.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTest-ppd.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ppd.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_MAK-pl.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\msinfo32.exe.mui.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\jni_md.h.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\+NewSQLServerConnection.odc.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\mlib_image.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ppd.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\dbgshim.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PenImc_cor3.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\LINEAR_RGB.pf.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.wordmui.msi.16.en-us.xml.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-pl.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\mip.exe.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\tipresx.dll.mui.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ppd.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest3-pl.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTrial-ul-oob.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOHEVI.DLL.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.NonGeneric.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationClientSideProviders.resources.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\WindowsBase.resources.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\currency.data.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ul-oob.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-ppd.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Layout.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clrgc.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Csp.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ppd.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-ul-oob.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\APASixthEditionOfficeOnline.xsl.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Permissions.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\flavormap.properties.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.Design.Editors.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jre-1.8\bin\unpack.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-runtime-l1-1-0.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EntityPickerIntl.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tabskb.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Primitives.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Input.Manipulations.resources.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\EXCELPLUGINCORE.DLL.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\pt-PT\tipresx.dll.mui.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationProvider.resources.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\PresentationUI.resources.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\vcruntime140_cor3.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-ppd.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-ul-phn.xrm-ms.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Core.NetFX35.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\ShapeCollector.exe.mui.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\WindowsBase.resources.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\HAMMER.WAV.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsfin.xml.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\GB.XSL.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\DataStreamerLibrary.dll.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-100.png.tmp	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.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	a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe

C:\Users\Admin\AppData\Local\Temp\a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe
"C:\Users\Admin\AppData\Local\Temp\a4915aa3e70e46a5803f0d33a01814d1b2ccc8dab3e8b96f5c0718a5e1f37295N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1088

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
38KB

MD5
f861dad0beeea85b85b5f0858f6defd2

SHA1
b6b82cc6eebcb4eb1fd5e93605e18b68d2651f39

SHA256
6de0295371b2e80dc218a4d978b3b7873eae06a2aaa02888de80440b6cf50d53

SHA512
ad89afc4b57762c8e579b791959a1f7cc36fd5ed9146c23092945a71c646a3919afb563a4fd98efbf21238890acc20c9d8727d8c3005c2afcb10ace865c6f49d

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

Filesize
136KB

MD5
0db21214ce553ff55026450a0fcc4433

SHA1
358894a009d072534534f0cc4601d30ace737126

SHA256
e384c7bdbd60cb3d90b0950f70232e946825832be16a9b452b8339f8b8c2ad75

SHA512
422c2ab54ed300bd8f926c87e3fc7becbb63c3c7f1477676ebbe1785eceb8d25aa4bd34c10eeb47d680b124278f95c7c827ccfed100f9e1a4f37fe627421fe6f

Download Submit
memory/1088-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1088-1023-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download