5c811b33dcbf0e17d4180d63fabb6ba084c0ddaca666ae470cab98761ad92393

Analysis

max time kernel
150s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07/05/2024, 04:04

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General

Target

61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
Size

313KB
MD5

61fed1c6d28b5f76bd832e0c6e8e5f40
SHA1

5f030c5c0de31e500ba2c66bfdb157c0fbd928eb
SHA256

5c811b33dcbf0e17d4180d63fabb6ba084c0ddaca666ae470cab98761ad92393
SHA512

7de5e881b2980569be05f53bf13444ae1e34bc610613f4d64bf392197a00910132eba844949d7e52f7e20b4e60762cb5bd808f0287c035a065d40846c944a09a
SSDEEP

6144:JiQSo1EZGtKgZGtK/CAIuZAIuExQSo1EZGtKgZGtK/CAIuZAIuZ:AQtyZGtKgZGtK/CAIuZAIuExQtyZGtKF

Score

9^/10

ransomware upx

Malware Config

Signatures

Renames multiple (4428) 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/4184-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000d000000023b24-2.dat	upx
behavioral2/files/0x000800000002295e-6.dat	upx
behavioral2/memory/4184-1450-0x0000000000400000-0x000000000040B000-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\ru\WindowsFormsIntegration.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\bin\vcruntime140_1.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\lib\jsse.jar.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ul-phn.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\pl-PL\tipresx.dll.mui.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\TabIpsps.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationTypes.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationFramework.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial3-pl.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.SPClient.Interfaces.DLL.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Input.Manipulations.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Trial-ppd.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\zlib.md.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-ul-oob.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_MAK_AE-pl.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsfra.xml.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\WindowsBase.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationClient.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-ul-oob.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.Design.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\bg.pak.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\fontmanager.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ppd.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationClient.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\bin\management.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Slice.thmx.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Json.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\lcms.md.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ppd.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_Subscription-ul-oob.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-ul-phn.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-180.png.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.Win32.SystemEvents.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\uk.pak.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jhat.exe.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\bin\j2pcsc.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\w2k_lsa_auth.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_Subscription-pl.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Common Files\System\msadc\de-DE\msadcor.dll.mui.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-convert-l1-1-0.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationTypes.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-localization-l1-2-0.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\7-Zip\Lang\ja.txt.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationClient.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD.HXS.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfr\profile.jfc.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ppd.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebClient.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\PresentationCore.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\UIAutomationTypes.resources.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\xerces.md.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-pl.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\7-Zip\Lang\is.txt.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jstack.exe.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\trusted.libraries.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ul-phn.xrm-ms.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscordaccore.dll.tmp	61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe

C:\Users\Admin\AppData\Local\Temp\61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\61fed1c6d28b5f76bd832e0c6e8e5f40_NEAS.exe"
1⤵
- Drops file in Program Files directory
PID:4184

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-877519540-908060166-1852957295-1000\desktop.ini.tmp

Filesize
313KB

MD5
c79d491e669612d54bf1b6b74cbce005

SHA1
c8f355a94826c4b37ca130b7718bcdde5a5747cc

SHA256
137c64169ffeac0cf38c78e4205727aa7094e7fc58344b0a54b4423800a31e90

SHA512
894e6197bc8edcd4f9c253f85b40cc0cf374a104df3db5916e5f9870397210a09af4d428d97316fadc1326f1770def081d6486e21731ee58fe95d2dd847625e8

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

Filesize
412KB

MD5
0fc22fa3fff5967b3c42f13080cd6439

SHA1
0c5fe5ec8076a8e750853a698b18db70bd4db274

SHA256
146343c4a8092641b77f9f6e17af18d0cad5d7f6bf4bd929463315b5b61d48e5

SHA512
b919f5d2638304758a481feb19078a49329149a9c3e451a3c0ae7aa74179f7859b658e23e659836b993228aff9a51530f2cb634134f964194ac12581effef146

Download Submit
memory/4184-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4184-1450-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads