dc57b70472a60ec7947b25cb73025ca43368f21ba8f94c691a601943477c7847

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
07/05/2024, 00:08

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General

Target

38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
Size

116KB
MD5

38564b8f0d27bf9fc9f58923b9e9e270
SHA1

0b23affb30695a77ea6466d663eae3013e93dc6a
SHA256

dc57b70472a60ec7947b25cb73025ca43368f21ba8f94c691a601943477c7847
SHA512

0fc397ac3918aef63528b67ef1651731da92c78acee90c33f89c34cb827b06088e02690ba39d6b8c0225d2ca032c24c2c6bbca17329352b0d8b2f5cb055b6137
SSDEEP

1536:Isz1++PJHJXFAIuZAIuekc9zBfA1OjBWgOI3uicwa+shcBEN2iqxtdSCow8hfli4:hfAIuZAIuYSMjoqtMHfhflixim0SyJ

Score

9^/10

ransomware upx

Malware Config

Signatures

Renames multiple (4864) 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/512-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000600000002327c-2.dat	upx
behavioral2/files/0x000800000002295a-6.dat	upx
behavioral2/memory/512-1006-0x0000000000400000-0x000000000040A000-memory.dmp	upx

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.Drawing.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.VisualBasic.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\ISO690Nmerical.XSL.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-80.png.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\WIND.WAV.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OIMG.DLL.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN103.XML.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Common Files\DESIGNER\MSADDNDR.OLB.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationClient.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\WindowsFormsIntegration.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\PresentationFramework.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\en-GB.pak.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest5-ppd.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-180.png.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Xaml.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ObjectModel.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\ta.pak.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jdb.exe.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-pl.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\7-Zip\Lang\hr.txt.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Primitives.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Web.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\UIAutomationClient.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.IO.Packaging.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\WindowsBase.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationProvider.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\Microsoft.VisualBasic.Forms.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\cpprestsdk.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.DiagnosticSource.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Locales\hi.pak.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial-pl.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-pl.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-100.png.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ja\msipc.dll.mui.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msdaremr.dll.mui.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-synch-l1-2-0.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\lib\hijrah-config-umalqura.properties.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription3-ppd.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Encoding.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Forms.Primitives.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Cryptography.Xml.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\IGX.DLL.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\zlibwapi.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Common Files\System\msadc\msdaprsr.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\classlist.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-pl.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msth8EN.DLL.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\tabskb.dll.mui.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\currency.data.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Trial-pl.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Forms.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Loader.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.resources.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages.properties.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-heap-l1-1-0.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FPA_FA000000050\FA000000050.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcor.dll.mui.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngdatatype.md.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_EnterpriseSub_Bypass30-ul-oob.xrm-ms.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-100.png.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Royale.dll.tmp	38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe

C:\Users\Admin\AppData\Local\Temp\38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\38564b8f0d27bf9fc9f58923b9e9e270_NEAS.exe"
1⤵
- Drops file in Program Files directory
PID:512

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-540404634-651139247-2967210625-1000\desktop.ini.tmp

Filesize
116KB

MD5
d7b5aa69a95b7489ab6da20dbeac8f6d

SHA1
6053ded109eee464dab5c72dd7953a8b5c51dc82

SHA256
c29c08f19d426c16cd960d706e84ec5ae7f2eb33d37beffa82f0fca747bbf332

SHA512
43828288a57c1de36778097310515465d2bd5f538bdf6658d523c2617e6baf3df4e87661e607a67d6863fc30890988274bf158655ee0bff5db1d116735fcfa8c

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

Filesize
215KB

MD5
57dfe0e97a83e51e905f0ad34ded9914

SHA1
10dd9e8ece44c7f8a0f45aea3683be0c51aef6ca

SHA256
8be5d4ff1e168a4c367e3a11a2b20cac9bd3084093def086e3a42010f56a22ad

SHA512
3832028126e4c2600b6f17d4cf8de822f1ff515989a564b677c816ff0d1ad25e5dd0142ccc91cedeea61466060b9396d92fe85dcc3c5cb18fe63e34a49e67836

Download Submit
memory/512-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/512-1006-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads