dbe4bb2932a4106f0cac3c30cba8c998d73c7e3a93deffe8867d7fea94e959d7

Analysis

max time kernel
120s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 09:18

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General

Target

278a3ea52fb307ec9b6501e3c3bc2590N.exe
Size

88KB
MD5

278a3ea52fb307ec9b6501e3c3bc2590
SHA1

1b361953c6f444e56ff3681e8485410aaafb9859
SHA256

dbe4bb2932a4106f0cac3c30cba8c998d73c7e3a93deffe8867d7fea94e959d7
SHA512

933dfabf5db7ac398e79663d904964b0207572e50ab3f9de3420c242aa326f2747176c93e5927840b31aeaad40e5fe72d2c378788ecde22709792d5a73d2b200
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyoKIKMmr4TW7JJZENTNyoKIKMmrH:fny1tE5KIKNtE5KIKF

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4487) 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/1304-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023451-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/1304-800-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationClient.resources.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-stdio-l1-1-0.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART3.BDR.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-errorhandling-l1-1-0.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Forms.resources.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\splash.gif.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Consolas-Verdana.xml.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\XLSLICER.DLL.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Internet Explorer\en-US\hmmapi.dll.mui.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-convert-l1-1-0.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.th-th.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfxswt.jar.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jre-1.8\lib\accessibility.properties.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\7-Zip\7-zip.chm.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.Xml.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Accessibility.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.IO.Packaging.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest1-ul-oob.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ppd.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ja-jp.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ppd.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.scale-140.png.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libxml2.md.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunmscapi.jar.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial3-ppd.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\7-Zip\Lang\pt.txt.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Input.Manipulations.resources.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\management.properties.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial4-pl.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-ppd.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_KMS_Client-ul.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\IGX.DLL.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationProvider.resources.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jli.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-ppd.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Windows.Forms.Primitives.resources.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Retail-ppd.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages.properties.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-pl.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-localization-l1-2-0.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\cs.pak.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\sqlxmlx.rll.mui.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Aero.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Proof.Culture.msi.16.fr-fr.xml.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.kk-kz.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\es-ES\msinfo32.exe.mui.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\chrome.dll.sig.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hu-HU\tipresx.dll.mui.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.VisualBasic.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.NonGeneric.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\libGLESv2.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_KMS_Client-ul-oob.xrm-ms.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-utility-l1-1-0.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Pipes.AccessControl.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.powerpointmui.msi.16.en-us.xml.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.CSharp.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Formatters.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\UIAutomationTypes.resources.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemCore.dll.tmp	278a3ea52fb307ec9b6501e3c3bc2590N.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	278a3ea52fb307ec9b6501e3c3bc2590N.exe

C:\Users\Admin\AppData\Local\Temp\278a3ea52fb307ec9b6501e3c3bc2590N.exe
"C:\Users\Admin\AppData\Local\Temp\278a3ea52fb307ec9b6501e3c3bc2590N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1304

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
89KB

MD5
175d691716511cb434437836a75a8753

SHA1
c93cb49ed09f3712d09192bb03239d805323d4fa

SHA256
0cd518c1df0a0cb0da3f03b059c21540df28834f6f64681de25066fe36d7fc56

SHA512
217b839ef31e6de81a86d305b99de7b1ebbda1c2087db7e9db4f0ffc69feee53ee6886a1b8fd5e341c5e2b2bbb870fed888f774ddb22318a395aae2c53ed0938

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

Filesize
188KB

MD5
72c94fc4ebfeffd1578c084662e48c43

SHA1
83993d4ad4ed8e5923c73895f4c96b075b185d55

SHA256
9d58eddddbfa2acd3f7c600e635e2afdb3a08942acf39ce27e9ddbf8919c3ba7

SHA512
756f28c62e4746885fe3b7363f87445f0abf8b71033b40a5c5952cb7d2aa6210ef83d825f91d46811f9175e6c98c41d3d1d29bdb8f62f0c3bc1d14de4c7aee04

Download Submit
memory/1304-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1304-800-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download