622a5da08bb5fa5b476b765b932e0e5645b2489f7760f116b1a6f80e86bf9aa2

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 14:47

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General

Target

425eae64864fa3c9233e6c00a41d5ec0N.exe
Size

26KB
MD5

425eae64864fa3c9233e6c00a41d5ec0
SHA1

7818a68e4b1e8b8d1ebccf4242e4f10271050bfc
SHA256

622a5da08bb5fa5b476b765b932e0e5645b2489f7760f116b1a6f80e86bf9aa2
SHA512

a0d637ae639f07afa2ca5b4d4d9e82bdd9c4c5ffba180c31a03aa351b5731e6cf20426ad882b902c17f52c91f253bb268942c75769c346d82c3910c70959ed1c
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI90mkmp:CTW7JJ7TqLy

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4656) 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/4912-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000b000000023444-2.dat	upx
behavioral2/files/0x00040000000228de-6.dat	upx
behavioral2/memory/4912-901-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\msdasqlr.dll.mui.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Web.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Extensions.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.WindowsDesktop.App.deps.json.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Trial-ppd.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Timer.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\joni.md.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART7.BDR.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\UIAutomationProvider.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Controls.Ribbon.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\server\classes.jsa.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\7-Zip\Lang\es.txt.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-string-l1-1-0.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Cng.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationCore.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_MAK-ul-oob.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\Default.dotx.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationProvider.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jdk-1.8\LICENSE.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_OEM_Perp-ul-oob.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\mshwLatin.dll.mui.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\msdasqlr.dll.mui.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.ServicePoint.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.officemui.msi.16.en-us.xml.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Common Files\System\es-ES\wab32res.dll.mui.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.VisualBasic.Core.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Xaml.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QRYINT32.DLL.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sl-si.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipRes.dll.mui.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.ServicePoint.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\PresentationFramework.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\cmm\LINEAR_RGB.pf.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial Black-Arial.xml.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-pl.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sspi_bridge.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-pl.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\icu_web.md.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription2-ppd.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ppd.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\UIAutomationProvider.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationClient.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Internet Explorer\IEShims.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\policy\unlimited\US_export_policy.jar.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp6-pl.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Grace-ul-oob.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\ReachFramework.resources.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\zlib.md.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription1-ul-oob.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-ppd.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordVL_MAK-ul-oob.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.IsolatedStorage.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Xaml.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lv-lv.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\mlib_image.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_OEM_Perp-ul-oob.xrm-ms.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\excel-udf-host.win32.bundle.tmp	425eae64864fa3c9233e6c00a41d5ec0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.Linq.dll.tmp	425eae64864fa3c9233e6c00a41d5ec0N.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	425eae64864fa3c9233e6c00a41d5ec0N.exe

C:\Users\Admin\AppData\Local\Temp\425eae64864fa3c9233e6c00a41d5ec0N.exe
"C:\Users\Admin\AppData\Local\Temp\425eae64864fa3c9233e6c00a41d5ec0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4912

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-1-5-21-2718105630-359604950-2820636825-1000\desktop.ini.tmp

Filesize
27KB

MD5
2e996995aed660a249e842b246db0c4e

SHA1
4da2eda492767dbe2d65c35124949d120d563870

SHA256
ebb8affc19c66ec526869a83fed457f3ebe397d04f4825af9d4fc827cf0b4ab5

SHA512
a74e7f299685efc5108b0d4d055bf2579737c028aa386064ed3d0caa7c0468c13a548c669ea0c7b573de2f530eb4054e2a672cda9b587d33f1c578484175fc7f

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

Filesize
125KB

MD5
9ef14ff4417d65a3989a7427b59a944c

SHA1
4c3caa51d2021b611429de06335c100bc202f2d2

SHA256
4a7015dd33e43a324cf65c77bcd337e350df796365f3285b6a94bcffb319ab46

SHA512
d7e4e2fe5058f24e113a027ece889b8aaf209708db201ab2df6866c2870295f721450176b71f610ff0dee8bccfdf10bb49f9d921f3b4bb305bc48f287d1a0ae1

Download Submit
memory/4912-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4912-901-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download