8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9

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
19-09-2024 04:56

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General

Target

8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
Size

34KB
MD5

ea86ca82bb7456719ee9444fb6816350
SHA1

fb86a43f5810c4a1bce7924d7774083360330582
SHA256

8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9
SHA512

1ba7f72509b2afc6117c532491c738ce9d9edbfc117df249358cb4a774b0c8ab9127bb035cd9e36ad9eb60d5e5a09a12d79d442ad617a377d04bec9253563565
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeg:CTWe

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4682) 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/4856-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0008000000023487-2.dat	upx
behavioral2/files/0x00040000000228de-6.dat	upx
behavioral2/memory/4856-927-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ul-phn.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationCore.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-environment-l1-1-0.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Constantia-Franklin Gothic Book.xml.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_Subscription-ul-oob.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymsl.ttf.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\net.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ppd.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ul-phn.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\TipTsf.dll.mui.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\Microsoft.VisualBasic.Forms.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-80.png.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ppd.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\pkeyconfig-office-client15.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.SqlServer.Configuration.SString.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-math-l1-1-0.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\ant-javafx.jar.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\plugin2\vcruntime140.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16ConsumerPerp_Bypass30-ul-oob.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest2-pl.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ul-oob.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msadcer.dll.mui.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\management.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Grace-ul-oob.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mfc140u.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Controls.Ribbon.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jre-1.8\LICENSE.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Violet.xml.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Grace-ppd.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsfin.xml.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ObjectModel.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\PresentationFramework.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10_RTL.mp4.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_KMS_Client_AE-ul.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOSTYLE.DLL.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\WindowsBase.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoCanary.png.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\7-Zip\Lang\ms.txt.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hi-in.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscordaccore.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Presentation.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\PresentationCore.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\WindowsBase.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\orb.idl.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOSB.DLL.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\7-Zip\Lang\ta.txt.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Extensions.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebProxy.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Primitives.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Quic.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_MoveNoDrop32x32.gif.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\dtplugin\deployJava1.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-stdio-l1-1-0.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-ppd.xrm-ms.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\TPN.txt.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.it-it.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Forms.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Controls.Ribbon.resources.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-localization-l1-2-0.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.el-gr.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Numerics.dll.tmp	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.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	8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe

C:\Users\Admin\AppData\Local\Temp\8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe
"C:\Users\Admin\AppData\Local\Temp\8ddf63974836e6e113401f532d8b44ae788af42fece5771a1cc0c7de8a5e7ad9N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4856

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-1-5-21-2718105630-359604950-2820636825-1000\desktop.ini.tmp

Filesize
34KB

MD5
d237af87de733d662f05400573b78f68

SHA1
64894fdf284ff07fac424727733fab761de9401e

SHA256
0c40541ffb3666b08c0938eae3227573d69c7d158f43c01d06f839ffe099f18f

SHA512
05147e24d89efb5843ab4d7f5dc6d7d6a0146b060a20c5b696d337c57a9c0bcc563876110d278666338bc7c1ea67e55ec3af98f66abf79dc7392c558682d682f

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

Filesize
133KB

MD5
e3113b1f0bc5233ff2a69f49e51ab318

SHA1
2d909d6d1ad3bd2e8abc9c796622391a8041ad7f

SHA256
5821405adadba0b15b1305ef776aa65882f11220d841ec7faa2acadd676cf445

SHA512
35e65ef8d2890da74233eed5fa10d9fc00960aeb63d790b67f46476b882540925b836fb0ee464b6cc0d683a5e5b85051d4d625783c1df39c35391e8fe5420cfa

Download Submit
memory/4856-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4856-927-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download