a25ecdca7302d83505ad6af9c04a9f7df7a9ff87f7dcedd986f6bb10409acc7a

Analysis

max time kernel
150s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/08/2024, 13:26

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General

Target

0248b1357293c113579c511352e9fed0N.exe
Size

81KB
MD5

0248b1357293c113579c511352e9fed0
SHA1

3af92c3e0a8c9ef57c6c385fcdc97d3f9eebe0e1
SHA256

a25ecdca7302d83505ad6af9c04a9f7df7a9ff87f7dcedd986f6bb10409acc7a
SHA512

39959cf42e94033e2c6affb5c4816c8f8e34e36ccdd4434b6a6a39eeb4f7af8f9c8b0941a1cff3e2c0a535c8332e06d1935d42e02723b92a9be390dd4b322604
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxY5AQG:fnyiQSox5AQG

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5030) 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/1236-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023452-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/1236-802-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ppd.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.ReportingServices.ReportDesign.Common.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.fr-fr.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsfin.xml.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.DiaSymReader.Native.amd64.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\AppXManifest.xml.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RIntLoc.en-us.16.msi.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clretwrc.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.Win32.SystemEvents.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Input.Manipulations.resources.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\Microsoft.VisualBasic.Forms.resources.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-math-l1-1-0.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Threading.AccessControl.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-phn.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD.HXS.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-80.png.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Windows.Forms.Design.resources.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ppd.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-pl.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.SapBwProvider.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\Default.dotx.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Internet Explorer\en-US\iexplore.exe.mui.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\msvcr120.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-ppd.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\GB.XSL.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\LibCurl64.DllA\OpenSSL64.DllA\libcrypto-1_1-x64.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\WindowsBase.resources.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Forms.Design.Editors.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\[email protected]	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11wrapper.md.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-bridge-office.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-ul-oob.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Grace-ppd.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipTsf.dll.mui.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Aero.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationProvider.resources.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\en-GB.pak.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WordNaiveBayesCommandRanker.txt.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\BREEZE.WAV.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-math-l1-1-0.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Internet Explorer\IEShims.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.TextWriterTraceListener.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.Xml.Linq.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\LINEAR_RGB.pf.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\javaws.policy.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-180.png.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\WindowsAccessBridge-64.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Retail-ul-oob.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-100.png.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\oledb32r.dll.mui.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-ppd.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Forms.resources.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Printing.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-file-l2-1-0.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_SubTrial-ppd.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\vcruntime140.dll.tmp	0248b1357293c113579c511352e9fed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Ping.dll.tmp	0248b1357293c113579c511352e9fed0N.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	0248b1357293c113579c511352e9fed0N.exe

C:\Users\Admin\AppData\Local\Temp\0248b1357293c113579c511352e9fed0N.exe
"C:\Users\Admin\AppData\Local\Temp\0248b1357293c113579c511352e9fed0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1236

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-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp

Filesize
81KB

MD5
872d6e87f14ca88cfafc82219578e4c7

SHA1
5f17b5025ae70160340f3c4c40aae7ae226cbaa8

SHA256
688927467ca6a6d51261c8c6b1d196a999b1674a13c11551aa891ee220f6a0f8

SHA512
35ad6d7be47d35936808ad585557cca68739ddd3384eb72213a68a9fef13e14318ec7b1b528d27d985b57d3ebf47617bccb1cb12137444076cc7e3507415ec0b

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

Filesize
180KB

MD5
4f9bc78fc1b295d24a850f2865d11520

SHA1
74ded865f42302c7463ae20f4709105174b08c78

SHA256
42748badc0b0aa55cc559f6a35268276cb3f8fbe7fcd5f1ff8148f154f9a5e6f

SHA512
e6d8a105f14ea7613534a80975dd3d33bd2dd962264ef29aee9a2e93c33a1c7d357b8929b4e9b01a1fbcf81f387cd9114497b7cfa5261e29c6a15061a07354de

Download Submit
memory/1236-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1236-802-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download