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Analysis
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max time kernel
151s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
16/10/2023, 14:08
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
NEAS.0f0e50f5fed5fc0115ec49664ceed260_JC.dll
Resource
win7-20230831-en
windows7-x64
1 signatures
150 seconds
General
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Target
NEAS.0f0e50f5fed5fc0115ec49664ceed260_JC.dll
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Size
273KB
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MD5
0f0e50f5fed5fc0115ec49664ceed260
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SHA1
5b2b762517664c8565e529326a1619937069943a
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SHA256
5813a3e4916216c75473782d8e7f2baa01add6d92709f8fc47be8136c27a19dd
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SHA512
f9fa54cdf9b1cfd9c06fd954b613e761426b7db6b5d4d1dba53520c047b512698bfabc50e4609901362b285e27410b161ec10eb5ed7d67f1a8a6bbc0de5ccdd8
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SSDEEP
6144:eI+6rnabfWa3LV3ufRZx+2mjb5yKjc6Ng6UJ9cl/AQZvZ4b:eI+6WbLLV3ufRZxnmH5zRXc9clDc
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2352 D736.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\STSCOPY.DLL D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\d3dcompiler_43.dll D736.tmp File opened for modification C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe D736.tmp File opened for modification C:\Program Files (x86)\Common Files\Microsoft Shared\VC\msdia100.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Web Server Extensions\16\BIN\FPWEC.DLL D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\xmsrv.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\NAME.DLL D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\NAMEEXT.DLL D736.tmp File opened for modification C:\Program Files\7-Zip\7z.sfx D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\MSOXMLMF.DLL D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\ONBttnIELinkedNotes.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\msoshext.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe D736.tmp File opened for modification C:\Program Files (x86)\Common Files\Microsoft Shared\VSTO\10.0\VSTOLoader.dll D736.tmp File opened for modification C:\Program Files (x86)\Microsoft\EdgeCore\116.0.1938.76\EBWebView\x86\EmbeddedBrowserWebView.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\msmgdsrv.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\OCHelper.dll D736.tmp File created C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroPDFImpl.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\msvcr120.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\sqlite.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\SaveAsRTF.api D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\msmdlocal.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\msolap.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Accessibility.api D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHEV.DLL D736.tmp File opened for modification C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARMHelper.exe D736.tmp File opened for modification C:\Program Files (x86)\Microsoft\EdgeUpdate\1.3.177.11\msedgeupdate.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\ONBttnIE.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\logsession.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\PPKLite.api D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\Multimedia\MPP\WindowsMedia.mpp D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\JitV.dll D736.tmp File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\d3dcompiler_47.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIR\nppdf32.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\msvcr120.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ExtendScript.dll D736.tmp File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler.exe D736.tmp File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe D736.tmp File opened for modification C:\Program Files\7-Zip\7zCon.sfx D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIDE.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\ReadOutLoud.api D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\Portal\PortalConnectCore.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\OWSSUPP.DLL D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins3d\drvDX9.x3d D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe D736.tmp File opened for modification C:\Program Files (x86)\Common Files\Java\Java Update\jucheck.exe D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\IEAWSDC.DLL D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\EScript.api D736.tmp File created C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX\AcroPDF.dll D736.tmp File opened for modification C:\Program Files (x86)\Common Files\Java\Java Update\jusched.exe D736.tmp File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Mso98win32client.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AGM.dll D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins3d\drvSOFT.x3d D736.tmp File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\AcroForm.api D736.tmp File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE16\Csi.dll D736.tmp -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\assembly\GAC_32\PresentationCore\3.0.0.0__31bf3856ad364e35\wpfgfx_v0300.dll D736.tmp File created C:\Windows\assembly\GAC_32\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll D736.tmp File created C:\Windows\assembly\GAC_32\System.Data.OracleClient\2.0.0.0__b77a5c561934e089\System.Data.OracleClient.dll D736.tmp -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 528 wrote to memory of 1316 528 rundll32.exe 32 PID 528 wrote to memory of 1316 528 rundll32.exe 32 PID 528 wrote to memory of 1316 528 rundll32.exe 32 PID 1316 wrote to memory of 2352 1316 rundll32.exe 82 PID 1316 wrote to memory of 2352 1316 rundll32.exe 82 PID 1316 wrote to memory of 2352 1316 rundll32.exe 82
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.0f0e50f5fed5fc0115ec49664ceed260_JC.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:528 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.0f0e50f5fed5fc0115ec49664ceed260_JC.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:1316 -
C:\Users\Admin\AppData\Local\Temp\D736.tmpC:\Users\Admin\AppData\Local\Temp\D736.tmp3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Drops file in Windows directory
PID:2352
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
145KB
MD5c610e7ccd6859872c585b2a85d7dc992
SHA1362b3d4b72e3add687c209c79b500b7c6a246d46
SHA25614063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041
SHA5128570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666
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Filesize
145KB
MD5c610e7ccd6859872c585b2a85d7dc992
SHA1362b3d4b72e3add687c209c79b500b7c6a246d46
SHA25614063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041
SHA5128570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666