41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2024 20:50

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General

Target

41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
Size

23KB
MD5

5bfb4e03e6e614d988c78d44e7b1bbd8
SHA1

7a0fd65bddf3636a373d4ce4f9e83c5d14e4de8f
SHA256

41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066
SHA512

4f518811cb8ae9f64bb30895b95dce5e9d9c946529c58961ab2fffd0ea02e61eceb48297cb57d0260932e471ad058d2f8e4bc25e57e0abf4d175cb95e2a54233
SSDEEP

384:QOlIBXDaU7CPKK0TIhfJJPbUEobUE51li6A6U:kBT37CPKKdJJTU3U2l6

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5042) 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/4916-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000a0000000234d6-2.dat	upx
behavioral2/files/0x0014000000022932-6.dat	upx
behavioral2/memory/4916-1108-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\it.txt.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\msquic.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\WindowsFormsIntegration.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\PresentationUI.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AuthoredExtensions.16.xml.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOSB.DLL.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.OpenSsl.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationTypes.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Numerics.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\WindowsBase.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\WindowsBase.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ul-phn.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jdk-1.8\lib\packager.jar.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jre-1.8\bin\deploy.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ul-oob.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-pl.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.VisualStudio.Tools.Applications.Runtime.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-white_scale-180.png.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\VISSHE.DLL.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tipskins.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\LICENSE.txt.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.Expressions.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Csp.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.DiaSymReader.Native.amd64.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationUI.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jre-1.8\bin\eula.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ppd.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT_COL.HXT.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN011.XML.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Common Files\System\ado\msado26.tlb.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN092.XML.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-libraryloader-l1-1-0.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jre-1.8\bin\fxplugins.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-pl.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-phn.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\baseAltGr_rtl.xml.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsen.xml.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jre-1.8\lib\javafx.properties.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Trial-ppd.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ul-oob.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ppd.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Windows.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ExcelCombinedFloatieModel.bin.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-pl.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-ul-oob.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Common Files\System\ado\msadomd28.tlb.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Xaml.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\bridge\AccessBridgeCallbacks.h.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremDemoR_BypassTrial365-ppd.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ul-phn.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-pl.xrm-ms.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.Primitives.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_sw.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-utility-l1-1-0.dll.tmp	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.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	41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe

C:\Users\Admin\AppData\Local\Temp\41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe
"C:\Users\Admin\AppData\Local\Temp\41c34dc55f234d83c0ef3152530befa4b39dc286807eeaf3c793d926e45e6066.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4916

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-1-5-21-1176886754-713327781-2233697964-1000\desktop.ini.tmp

Filesize
24KB

MD5
320d7c67571d7c69bcaae31a4fc0736d

SHA1
0844637d0e7a79998d533da917c040b36f639bf7

SHA256
146d1b306e6958f5d1b1dd5c0ed65185c23fd40ac51513ca33273db7e8e6581c

SHA512
3cc08d11ba8531bf0c5eef7523f69dcd513a1d86d2ff63e7206933131c5b579557a86a1f42c95081a22650c85196c7f2f966b65755856a63c1f64625c675a564

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

Filesize
122KB

MD5
7935da46367640ad32c56f755b519508

SHA1
ec2c09b87ef14e5cdf3bb754135eb2b5d3522ee6

SHA256
e5755078345d5d231e7dc697c909c5b6319298084603088c1b79965fdc6420d0

SHA512
099bc48f84c6e7f0170651484b81b0bd0b67910bfa7a68f565defacf1412d529a9b8f60d69c6fcdb9d946b7ae7b79da27d9e481f863f182f90b36609cc23894e

Download Submit
memory/4916-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4916-1108-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download