27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1a

Analysis

max time kernel
120s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:54

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General

Target

27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
Size

38KB
MD5

4724f14455dbd3cb45591d2edf6af6e0
SHA1

8965828ff679c1d0652f7ce210d4dfd55d8a20f2
SHA256

27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1a
SHA512

4b69a006f5fb9186cd5c75e480f38b875c1f93c428cf077bba5df45bdb30cca878799470c87ad81fe6959a6fc1c7871c0d94c24e4cc86d58e1bb9f89e2cba6a1
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATBaMY9cB:CTW7JJZENTBTYm

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4646) 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/1484-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000c000000023ba7-2.dat	upx
behavioral2/files/0x0004000000022941-6.dat	upx
behavioral2/memory/1484-782-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONINTL.DLL.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\mscordaccore.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jre-1.8\bin\java.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\pt-BR\tipresx.dll.mui.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Common Files\System\wab32res.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.MemoryMappedFiles.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Xaml.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\Microsoft.VisualBasic.Forms.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jre-1.8\lib\jsse.jar.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\7-Zip\Lang\sv.txt.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipRes.dll.mui.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-ppd.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.WindowsAzure.StorageClient.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-pl.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Extensions.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-ul-phn.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jdwp.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\tipresx.dll.mui.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jdk-1.8\include\jni.h.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\cpprestsdk.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.Concurrent.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Xaml.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.Win32.SystemEvents.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\directshow.md.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Ion Boardroom.thmx.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.FileVersionInfo.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.NonGeneric.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Input.Manipulations.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\ReachFramework.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\ReachFramework.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Grace-ul-oob.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ppd.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\en\LocalizedStrings.xml.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Buffers.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.CompilerServices.Unsafe.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l2-1-0.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngcc.md.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\access-bridge-64.jar.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\PresentationFramework.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ar.pak.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\EntityPicker.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Franklin Gothic.xml.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Grace-ppd.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskmenu\oskmenubase.xml.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\libxml2.md.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\UIAutomationClient.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\TipRes.dll.mui.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.RegularExpressions.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Xaml.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-phn.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10.mp4.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-pl.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\POWERPNT.HXS.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationNative_cor3.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Median.xml.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\ANALYS32.XLL.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-140.png.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Design.resources.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Java\jre-1.8\bin\klist.exe.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ppd.xrm-ms.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.CompilerServices.VisualC.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Diagnostics.PerformanceCounter.dll.tmp	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.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	27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe

C:\Users\Admin\AppData\Local\Temp\27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe
"C:\Users\Admin\AppData\Local\Temp\27c290537cbe4d92f4f1e32198bb7204222db2f6c764f3b9f34ae2517380bf1aN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1484

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-1-5-21-2629364133-3182087385-364449604-1000\desktop.ini.tmp

Filesize
39KB

MD5
5c27c33e13f82899fd888dcc5d0ea9e0

SHA1
174f2eff274132ba3a60e50eb739ded001e277da

SHA256
16046315a33ae04c9d8bfb6f0f2c177b14e10f68be461ca44b6088c9102f4b20

SHA512
6ec3af6e57ada040272cbd578bbcb71095f99404056857967c594aa2034ce60a3f80cff499c093b7306f5188a60149627dd30f5fedb8be8d4cda89aa02b7ce9f

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

Filesize
138KB

MD5
972f0609d3d76ceb76f39b1736b698d6

SHA1
68d640c267b2b07a93c4c83b93f12f87a8e84a88

SHA256
68c6c4f1dc23a46e3223081e3cbba921f866295a98b02f51cc6d93cc76a9ce81

SHA512
b2905a56046abc50b02ad61efc11930a7b70a7b291bed0603de6f8e3f0354582419e1161535e6b3801e378df720077ddf7d76ec9eb6fb23f0785b86b7824242c

Download Submit
memory/1484-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1484-782-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download