721d5bad95e1b7783a012496ccc47deafba46d532719ad8752b49479caf42ac3

Analysis

max time kernel
120s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 20:09

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General

Target

d4b7be023366eb9208b993b3bb010500N.exe
Size

25KB
MD5

d4b7be023366eb9208b993b3bb010500
SHA1

8a60f460b615f5773c31dabb65aff59433f34c45
SHA256

721d5bad95e1b7783a012496ccc47deafba46d532719ad8752b49479caf42ac3
SHA512

5ed3d03841e9be334cfa438a2d8c6c5ab310f399bcae26c8142a2ca29b7c1491b3b1d77b251bc7cc4b504d972b1b057c9bc2e5d8394d0692f3ae51a8e478b473
SSDEEP

384:QOlIBXDaU7CPKK0TIhfJJ1Evd5BvhzaM9mSIEvd5BvhzaM9mSsxmMxmDEFE9rt:kBT37CPKKdJJ1EXBwzEXBwdcMcxrt

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4653) 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/4136-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023480-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/4136-916-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0000-1000-0000000FF1CE.xml.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Document.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\fi\msipc.dll.mui.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.vi-vn.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\accessibility.properties.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_eula.txt.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\7-Zip\Lang\fa.txt.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\BCSRuntimeRes.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\Sybase.xsl.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Common Files\DESIGNER\MSADDNDR.OLB.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationProvider.resources.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\jaccess.jar.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.shared.Office.x-none.msi.16.x-none.xml.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\ssn_high_group_info.txt.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msadcer.dll.mui.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\Microsoft.VisualBasic.Forms.resources.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\OMICAUTINTL.DLL.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Requests.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jre-1.8\bin\java.exe.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-pl.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_MAK_AE-ul-phn.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ppd.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Grace-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_Subscription-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.FuzzyMatching.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.contrast-black_scale-140.png.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Contracts.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\sql2000.xsl.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Data.DataSetExtensions.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Extensions.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vccorlib140.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Tw Cen MT-Rockwell.xml.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ppd.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-ppd.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\RepoMan.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msdaremr.dll.mui.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ro.pak.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-console-l1-1-0.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Trial-pl.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\policytool.exe.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ul-oob.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_rtl.xml.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-handle-l1-1-0.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-pl.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Trial-pl.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-console-l1-2-0.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial3-ppd.xrm-ms.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\relaxngcc.md.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\VISUALIZATIONGRAPHICS.DLL.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.Interop.Excel.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\tipresx.dll.mui.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clrgc.dll.tmp	d4b7be023366eb9208b993b3bb010500N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Forms.resources.dll.tmp	d4b7be023366eb9208b993b3bb010500N.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	d4b7be023366eb9208b993b3bb010500N.exe

C:\Users\Admin\AppData\Local\Temp\d4b7be023366eb9208b993b3bb010500N.exe
"C:\Users\Admin\AppData\Local\Temp\d4b7be023366eb9208b993b3bb010500N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4136

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
25KB

MD5
a133b96ca0268324604e6b9f0ab979c8

SHA1
5c0ae990c93fb7e61a0b12b90f553182da4f3414

SHA256
717788e7be76f45d5d1c426c602c66bf40c163a736a61dbd4ce671c619dea592

SHA512
a232720909633ced93c28514879167add2ac1945449fe243050bb67559887e66a70bf7ff3d0c7666ec115f5ce5b9ff6d9d2d67a0b8dd74e3e7cfad17cffa14d9

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

Filesize
124KB

MD5
4720979239a2751abde488b001941377

SHA1
0ed438d94ee2d1e9372b5b3f1ba34622d34a3dad

SHA256
5c4065cb3ee94d53ce7d8b6936911411461d9682ea484f11ace962178556184d

SHA512
c4510cd0995860a00c2b392ae547884e88b130efa785216e7c45d2ce81b4e212fe1ae73a444591cb494f1adb5810c7f11bbbaeaa08ef057aa4df394a85da7421

Download Submit
memory/4136-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4136-916-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download