26f0cfd532f06c7235b3242278d78971a1f4d55415eb5b04bde40251202282b1

Analysis

max time kernel
120s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 01:20

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

35fbec4cd96a0575c50d7f93e0c5a650N.exe
Size

64KB
MD5

35fbec4cd96a0575c50d7f93e0c5a650
SHA1

b49b53cbf1d6213f0e9f397d2b0b8d85dc87f5e7
SHA256

26f0cfd532f06c7235b3242278d78971a1f4d55415eb5b04bde40251202282b1
SHA512

fc18c1ae4506439441f73c65b261090bbe4644ac1c09d2c9d2caef79cb9aa945ec51df5c4a99145dd9baee3f907ff2cba7d6b3b2907854a9c4e892b57b2391d8
SSDEEP

1536:V7Zf/FAxTWoJJTU3UytJfOKI+h/YI+h/BQ:fny1sI+h/YI+h/BQ

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4225) 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/2756-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233cd-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/2756-794-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.Primitives.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Tw Cen MT.xml.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_MAK-ppd.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.InteropServices.RuntimeInformation.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.Primitives.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-pl.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\Informix.xsl.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0409-1000-0000000FF1CE.xml.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.office32mui.msi.16.en-us.xml.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy.jar.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Grace-ul-oob.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\ucrtbase.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javafx_iio.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\dxil.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-util-l1-1-0.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeServiceBypassR_PrepidBypass-ppd.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Xaml.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\ReachFramework.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.CompilerServices.VisualC.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationClientSideProviders.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management-agent.jar.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.SapBwProvider.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.TypeExtensions.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Retail-ul-phn.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\7-Zip\Lang\bg.txt.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Grace-ppd.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-ppd.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationClientSideProviders.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\rmid.exe.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\flavormap.properties.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Grace-ul-oob.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ppd.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymb.ttf.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\7-Zip\Lang\vi.txt.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Json.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Edm.NetFX35.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\InkObj.dll.mui.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial-pl.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Trial-ppd.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_OEM_Perp-ul-phn.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONGuide.onepkg.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jconsole.jar.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jre-1.8\bin\npt.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\d3dcompiler_47.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Transactions.Local.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\WindowsFormsIntegration.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome_wer.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_OEM_Perp-pl.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Grace-ul-oob.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdR_Retail-pl.xrm-ms.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.FileSystem.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\pack200.exe.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Forms.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\PresentationUI.resources.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\tipresx.dll.mui.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.IsolatedStorage.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ja.properties.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Ion.thmx.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.DataStreamer.Excel.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.zh-tw.dll.tmp	35fbec4cd96a0575c50d7f93e0c5a650N.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	35fbec4cd96a0575c50d7f93e0c5a650N.exe

C:\Users\Admin\AppData\Local\Temp\35fbec4cd96a0575c50d7f93e0c5a650N.exe
"C:\Users\Admin\AppData\Local\Temp\35fbec4cd96a0575c50d7f93e0c5a650N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2756

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

Loading Replay Monitor...

Downloads

C:\$Recycle.Bin\S-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp

Filesize
64KB

MD5
31c89aa265d1083ec97b3755b838e953

SHA1
197652594d80225513ebb8e2a1baa47dc4069931

SHA256
73b8762d23f9cd1cbbcf2c26ca6501d11c8e5bbfb7ca07a06cd573b1868848ef

SHA512
10c5924f067731b7ac332af98d243ba4687f36befd7907b085db22c8af691dc345902eaf42ea0c02a2ae2b2adc7a1bc96cb91c97d9913df826d21ea2c561e924

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

Filesize
163KB

MD5
646357cdc477a0159d39358762444bb1

SHA1
306a6e526919db4e41337300724bbb82c78998f7

SHA256
8a8630e7669d36a5a122b42244977cdbf113b8d2de130439b2602afba4d6704f

SHA512
7ed204751599ad8a26cbb114e44d1f0a135f4bb883dc83e485b40e8adb21b2321b05308eaf229dcf1c071863cedc533e40ab5ba11a04fea31668dea7a8823cf8

Download Submit
memory/2756-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2756-794-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download