b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4

Analysis

max time kernel
120s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2024 02:18

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General

Target

b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
Size

81KB
MD5

1c2d27876fce3f03da87a82065acd870
SHA1

a3f7a0d3270c171899eaf8f95790ff4c4fde8c82
SHA256

b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4
SHA512

ead9f214a9c46449de2caf296d6ac60856e984831d081eeb656589b041558fc6e18744c6bf94cb6fd1487e243181b7a574d24fb45c9df7c6f34d5029b98325e3
SSDEEP

768:W7BlphA7pARFbhvOsTKnKqtb4HBZjlwGpCYnigugqOzM9bdifwMtxEwJjlVki/7:W7ZhA7pApvOsOKM4HBhaGwOQ54xEIjll

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4629) 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\Java\jre-1.8\lib\deploy\messages_sv.properties.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\hi\msipc.dll.mui.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\7-Zip\Lang\vi.txt.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_f2\FA000000002.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Loader.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Algorithms.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\DirectWriteForwarder.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sl.pak.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2gss.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-ppd.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\7-Zip\Lang\uz.txt.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.Watcher.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\PresentationFramework.resources.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Printing.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vcruntime140_1.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Grace-ppd.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ul-phn.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightDemiItalic.ttf.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jre-1.8\bin\JavaAccessBridge-64.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-100.png.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\th\msipc.dll.mui.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\mshwLatin.dll.mui.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ko-KR\tipresx.dll.mui.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Common Files\System\msadc\msdaremr.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.UnmanagedMemoryStream.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Grace-ppd.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Loader.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxslt.md.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jre-1.8\bin\fxplugins.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-ppd.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Resources.ResourceManager.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\localedata.jar.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Interceptor.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcr120.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\dynalink.md.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfxmedia.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mip_clienttelemetry.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\pkcs11wrapper.md.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_HK.properties.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-pl.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\IpsMigrationPlugin.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationFramework.resources.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.DataWarehouse.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jsound.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.shared.Office.x-none.msi.16.x-none.xml.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ul-phn.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_WHATSNEW.XML.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\EXCEL.VisualElementsManifest.xml.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-180.png.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-140.png.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\7-Zip\Lang\it.txt.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad.xml.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Common Files\System\ado\msadomd.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.ZipFile.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_OEM_Perp-pl.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-ppd.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.DataAnnotations.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationClient.resources.dll.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.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	b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe

C:\Users\Admin\AppData\Local\Temp\b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe
"C:\Users\Admin\AppData\Local\Temp\b4d5d1a6f5cc52795c57dccdda3a8a632457e3b8b7abdcc297efb40748a280a4N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1344

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-1-5-21-2437139445-1151884604-3026847218-1000\desktop.ini.tmp

Filesize
81KB

MD5
63abfdb8b2884a2f3b0fb3cbbab0cace

SHA1
361c56742043e104530d8edadb08596f7133cef0

SHA256
41eb7bb51f6d2b55b5091c30e2acd1dc4808d0ee3a92afd55a42c21adf8df05d

SHA512
1f5ef0de5a0040276d7e387ac69b58f1806000010dc215e2b409328fa7e3dcb4e5a62753d7bdc3b44df50b583a394068e305c93ce7453d6510b27fb68292b9b2

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

Filesize
180KB

MD5
712f362cca2643717fb8b88dc4c4d0f0

SHA1
048ce2a3b699ef4f6ea59614067bf7c74177389f

SHA256
b6b022d35be77abe217561635acc51b36c7da6d11ec3d5801d545867bea5e1d4

SHA512
5bad747867448fb3562cc56161102c9a35a261739fbf3ef0e7cb07e08cce56d243d0549a39583c1721ffc1d96e5d5303924de088fbd889cdf56d73a03a1e7258

Download Submit