a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158

Analysis

max time kernel
150s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26/09/2024, 00:35

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General

Target

a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
Size

26KB
MD5

8acb890aa9b67eaf16b471892540fe2b
SHA1

95e682597fdc5d46111eaaa3b9c4807496e5e02c
SHA256

a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158
SHA512

b75e9d582c96187a336dc50a405b7e8fc13990b181249a91fb66809f6cf1cb3c6b7eb5fbf41c11a8e4d6fe0eaf97920911d988bbd7e7264a873764433b0c9307
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI982AZJE2AZJ/N+I+B:CTW7JJ7TV+I+B

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5194) 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/3920-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002360b-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/3920-917-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-pl.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\OpenSSL64.DllA\openssl64.dlla.manifest.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL044.XML.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.ReaderWriter.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\colorimaging.md.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\mesa3d.md.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngom.md.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\xerces.md.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jre-1.8\bin\jsoundds.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Proof.Culture.msi.16.fr-fr.xml.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription4-ppd.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcer.dll.mui.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Office.Interop.Outlook.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemCore.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Calibri-Cambria.xml.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\pkeyconfig-office-client15.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Templates\1033\ExpenseReport.xltx.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.Immutable.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Retail-ul-oob.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-ppd.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\Microsoft.VisualBasic.Forms.resources.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Permissions.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\Logo.png.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-string-l1-1-0.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL110.XML.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Brotli.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\WindowsFormsIntegration.resources.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\javaws.jar.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Corbel.xml.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_OEM_Perp-ul-oob.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ul.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\7-Zip\7z.sfx.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as80.xsl.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Templates\1033\TimelessLetter.dotx.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Grace-ppd.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Primitives.resources.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\santuario.md.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00C1-0000-1000-0000000FF1CE.xml.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-pl.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_K_COL.HXK.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Document.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XDocument.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0409-1000-0000000FF1CE.xml.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_MAK_AE-pl.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-white_scale-180.png.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.Design.resources.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jre-1.8\bin\awt.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_MoveNoDrop32x32.gif.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ul-oob.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msth8FR.DLL.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Office16\RTC.DLL.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Input.Manipulations.resources.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-stdio-l1-1-0.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipssve.xml.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Input.Manipulations.dll.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Java\jdk-1.8\include\jni.h.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ul-oob.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription4-ppd.xrm-ms.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\7-Zip\Lang\co.txt.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\msinfo32.exe.mui.tmp	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.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	a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe

C:\Users\Admin\AppData\Local\Temp\a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe
"C:\Users\Admin\AppData\Local\Temp\a53b32766e4689a9c8da5dd337465e1569eb849c03a7914e4286e68244d6e158.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3920

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4300,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=4384 /prefetch:8
1⤵
PID:4892

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-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
26KB

MD5
935082ac925782327c2f171800194409

SHA1
58578054a627133c554706e698bb27a5174271db

SHA256
970780fd660c3a3e16d1e33a8101439ac94745b9d3658a04b5d4255cd1646096

SHA512
e75213c5c8c86086cf3caf1a3bbf472107d4e515c6db6c5cea7254eae786942e6841965519042b8b0e59b221be5826b5da9250f1a55ac24167ce72e0010926de

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

Filesize
138KB

MD5
9ce036d26085ccb5480578b7d17a9f42

SHA1
2b99cd969e894bf8dbbedddd70c3a2e5cea810c8

SHA256
527e0c9bc206e60c157f736a14308ba91422a2e983514d6d8e2c4efbd1a624fe

SHA512
08b1ef03f5b8adc5c7a756fc70d257068f96ca000ac1a4b6bf1a73f33d1a2a4652cd807a55ef02aa5765e8feec4e9a97901ca90ce7eafc9eb2fcec541490d85f

Download Submit
memory/3920-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3920-917-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download