0733c794968f0115fcae0d5454ba09a6421db37037ca6ae8a5cdb4723b72c3d0

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 02:08

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General

Target

3bf04a762a2e4e43b56f4c19ba2792b0N.exe
Size

69KB
MD5

3bf04a762a2e4e43b56f4c19ba2792b0
SHA1

b2edf4dfaa6c101c1d8200af2f5c4024481cd569
SHA256

0733c794968f0115fcae0d5454ba09a6421db37037ca6ae8a5cdb4723b72c3d0
SHA512

7458ae6030f5dd4597776a75d4411b056fd8cbcf212f958613d084061d10099ffcd175055e506635965520c53123ef2af4a4a58f04ed58009e0e4264e0546a91
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rB:V7Zf/FAxTWtnMdyGdyktvtU

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4670) 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/4820-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233b2-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/4820-916-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\ReachFramework.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Printing.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-ppd.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymb.ttf.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\msipc.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoBeta.png.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\psfont.properties.ja.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationCore.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.OleDbInterop.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.Design.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Forms.Design.Editors.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_OEM_Perp-ppd.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_KMS_Client-ul.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\WindowsBase.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Windows.Forms.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\unlimited\US_export_policy.jar.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Java\jre-1.8\COPYRIGHT.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-ul-oob.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\EntityDataHandler.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp4-ppd.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\mashupcompression.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\msdasqlr.dll.mui.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\fr-FR\oledb32r.dll.mui.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\resources.jar.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaTypewriterBold.ttf.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-pl.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-runtime-l1-1-0.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.CompilerServices.VisualC.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Ping.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16EnterpriseVL_Bypass30-ul-oob.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WordNaiveBayesCommandRanker.txt.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTest-pl.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-ul-oob.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_WHATSNEW.XML.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\ReachFramework.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Accessibility.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Classic.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-white_scale-100.png.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\gl\msipc.dll.mui.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XmlSerializer.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Resources.Writer.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Primitives.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Aero2.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\PresentationFramework.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ar.pak.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\pkeyconfig-office-client15.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\zh-CN\tipresx.dll.mui.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\sqloledb.rll.mui.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Windows.Forms.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_200_percent.pak.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationClient.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\lt.pak.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CSS7DATA000A.DLL.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-timezone-l1-1-0.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Dynamic.Runtime.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.Dataflow.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Input.Manipulations.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\LibCurl64.DllA\OpenSSL64.DllA\libssl-1_1-x64.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_heb.xml.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Forms.Design.resources.dll.tmp	3bf04a762a2e4e43b56f4c19ba2792b0N.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	3bf04a762a2e4e43b56f4c19ba2792b0N.exe

C:\Users\Admin\AppData\Local\Temp\3bf04a762a2e4e43b56f4c19ba2792b0N.exe
"C:\Users\Admin\AppData\Local\Temp\3bf04a762a2e4e43b56f4c19ba2792b0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4820

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-1-5-21-523280732-2327480845-3730041215-1000\desktop.ini.tmp

Filesize
70KB

MD5
ee5bf6f25facb24f4fac63904c8d9ffb

SHA1
02dc621677e5835fb3f33a95def397095f128933

SHA256
0cf1dbdf6b630da384f0b9d010c1ac7f0db2c5d84f87fdd445c77dc4c8570805

SHA512
33ff501ba9441b6079d6054e7d43c5f76f3d3cc9e9a39a2360d04f4a5661c101b496e6c5007cd4a08aed7bcc651c75b368dec3a4859a7fb95371542d4d8bfc71

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

Filesize
168KB

MD5
87c04d08f819092c044bf759f1bbed00

SHA1
1c56e6eb37381d838c88af6e6b1f6e13f2679aa7

SHA256
ddf33aec5fc0ab78d59a8bb48801cf368ff9e66a6bc871739824c3fe1d692726

SHA512
c7e69fe7fe0435d61c6db6deb16dde162d18bb99ed0cc682f2f2bb59c184b0ec687d389383ce5d3605f12f11555cc9d140126ae3d2faf22df87a5720a6627afc

Download Submit
memory/4820-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4820-916-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download