304a0450dab0193f243aeb1efdc09fe70e0b4abb6bac75ead0dc860c2bfe7bf7

Analysis

max time kernel
120s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 21:04

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General

Target

d31c936a3b5c73c8b7757446455953c0N.exe
Size

52KB
MD5

d31c936a3b5c73c8b7757446455953c0
SHA1

a8fbad138d710448c90c647ccf1f8642b73f5882
SHA256

304a0450dab0193f243aeb1efdc09fe70e0b4abb6bac75ead0dc860c2bfe7bf7
SHA512

202ef53a5810464d3716b056d540ca0cf2b31053ffb2ac3642db22f2a14d95533c6d5076654ff97a05334e1ba66988a6fffb507ce10d69c91edfd3b266f54906
SSDEEP

1536:W7ZppApBULcfpHLcfpyDoAI9yRYstRYsR:6pWpBwchcwDK9SYsLYsR

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4650) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Web.HttpUtility.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ExcelNaiveBayesCommandRanker.txt.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\rtscom.dll.mui.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Grace-ppd.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_OEM_Perp-ul-oob.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-140.png.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sl.pak.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-ul-oob.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.VisualBasic.Core.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\fontmanager.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-pl.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\pl\msipc.dll.mui.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Metadata.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_MAK_AE-pl.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-ul-phn.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.Primitives.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jli.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp3-ul-phn.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTest-ul-oob.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_SubTrial-pl.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_ca.xml.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-utility-l1-1-0.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vccorlib140.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-pl.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-black_scale-180.png.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\UIAutomationClientSideProviders.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Input.Manipulations.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jaas_nt.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Formats.Asn1.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationCore.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationFramework.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InputPersonalization.exe.mui.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-pl.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_f4\FA000000005.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\InkObj.dll.mui.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Tools.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationProvider.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Windows.Forms.Design.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\java_crw_demo.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-phn.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Xml.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.Design.Editors.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\LINEAR_RGB.pf.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ja.properties.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Grace-ul-oob.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.PPT.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.Reporting.Common.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hwrenUSlm.dat.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\7-Zip\Lang\sv.txt.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Formats.Tar.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription5-ul-oob.xrm-ms.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\7-Zip\7zFM.exe.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\UIAutomationTypes.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\UIAutomationClientSideProviders.resources.dll.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Facet.thmx.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue.xml.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\AccessRuntime2019_eula.txt.tmp	d31c936a3b5c73c8b7757446455953c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\zh-TW\msipc.dll.mui.tmp	d31c936a3b5c73c8b7757446455953c0N.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	d31c936a3b5c73c8b7757446455953c0N.exe

C:\Users\Admin\AppData\Local\Temp\d31c936a3b5c73c8b7757446455953c0N.exe
"C:\Users\Admin\AppData\Local\Temp\d31c936a3b5c73c8b7757446455953c0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4800

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
52KB

MD5
c5a43480c1cf91bd72434dd4f91736f4

SHA1
13ed695a7a4b7f55148a42908d04c4978a096e10

SHA256
35f0b6372a2527477e101722dc86e855db2aaf814cba6c11652d01024ab361fa

SHA512
8a054639e6caf86cf44159751fab0007be10c2c29d35e724e5e22bc15bea9686d239b92ac5edb8f07ff5d645bf39fe836e4ef2e8dbfec4bb8442c46db19f0873

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

Filesize
151KB

MD5
8845ef81e30b602e0fb9b6fe04815a3c

SHA1
750cc77db8ffaa55f8641311646e000c1d92a1ff

SHA256
2d46a5f228c0dd2bc8547ec1e35ace0f96143907c487827e58c38de8a9594661

SHA512
3d88f42b193c2e73dee4f2f6bb681a669aba621c16bbc19855f65e644bae163956274e94a311fd7a2fc1e4cc0a06f2aff16773c19317041c4922ac86de85df7b

Download Submit