5f3619290f74b691079963ad87e3f81e2b5d1b28b4d7853bf75af1464ab30724

Analysis

max time kernel
120s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 20:31

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General

Target

5128e3f78540662614235993e2c3a320N.exe
Size

24KB
MD5

5128e3f78540662614235993e2c3a320
SHA1

1bf85c34d046d4ab32ed6a3daa144d4216574c46
SHA256

5f3619290f74b691079963ad87e3f81e2b5d1b28b4d7853bf75af1464ab30724
SHA512

3f6c63d41b2a898871b3f0b4b936330452f9a5c874f4a0540eb0cfdec12263bae61f928d926e91cb244940b840c79c1798aa03fcf0a1c9b3615506be9b92be51
SSDEEP

768:kBT37CPKKdJJBZBZaOAOIB3jM2jM7lKsr:CTW7JJB7LD2I2Iosr

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4224) 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/920-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000700000002326e-2.dat	upx
behavioral2/files/0x0004000000022949-6.dat	upx
behavioral2/memory/920-714-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\bin\javafx_font.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Grace-ppd.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL.HXS.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationTypes.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Forms.Design.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ppd.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ppd.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Grace-ppd.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.IsolatedStorage.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.SecureString.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Primitives.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dtplugin\npdeployJava1.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_OEM_Perp-ppd.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Common Files\System\ado\msadomd.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\UIAutomationClientSideProviders.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.AppContext.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Numerics.Vectors.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationUI.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\cryptix.md.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_KMS_Client-ul-oob.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-pl.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-oob.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\InkObj.dll.mui.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Core.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.Serialization.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Xaml.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationCore.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_CopyNoDrop32x32.gif.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial-pl.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebHeaderCollection.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail2-pl.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Common.Wizard.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\PresentationCore.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clrgc.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Drawing.Primitives.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Controls.Ribbon.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial-ul-oob.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebProxy.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Java\jre-1.8\bin\mlib_image.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Grace-ppd.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Trial-pl.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Grace-ul-oob.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\gu.pak.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-pl.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationProvider.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Glossy.eftx.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_COL.HXT.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-ul-phn.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationUI.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OneNote.OneNote.x-none.msi.16.x-none.xml.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Luna.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Design.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Diagnostics.EventLog.Messages.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-ppd.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ul-phn.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ul-phn.xrm-ms.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-string-l1-1-0.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\Microsoft.VisualBasic.Forms.resources.dll.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee100.tlb.tmp	5128e3f78540662614235993e2c3a320N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\jcup.md.tmp	5128e3f78540662614235993e2c3a320N.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	5128e3f78540662614235993e2c3a320N.exe

C:\Users\Admin\AppData\Local\Temp\5128e3f78540662614235993e2c3a320N.exe
"C:\Users\Admin\AppData\Local\Temp\5128e3f78540662614235993e2c3a320N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:920

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-1-5-21-1403246978-718555486-3105247137-1000\desktop.ini.tmp

Filesize
24KB

MD5
21f6b7506ccbe01c64da000ec4ac680b

SHA1
3915dcf7894175f532fdab345cee17d7d890d17a

SHA256
57e5bdfeb18a148b0f22882483bf910066e398dac0055a318ce67cb352eda2e3

SHA512
6b96334b335d9d7523aa3c2e25a14dc588ad9837039219fc4728a66bd6fc91f48706c46c63d9e6a20e3342139e08a9513b1efb2ecb43cb962d9495830dd22fb4

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

Filesize
123KB

MD5
6174902450809a1874e55b1dfd903abf

SHA1
c1f564831572b0a911034742c34c99f93822209c

SHA256
5cc71d15359ae40325e4a228d185b7089fc9ff1ff7a002f220b84bb69cb710ec

SHA512
72dcead87c46d3220f30b39fb3b26dc344685863bb741a6163cafb44865f21866a53bc7dfa25c8ad19cb018faa8414955505e18c873cd5e2015d76705c0befa0

Download Submit
memory/920-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/920-714-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download