4c7fed2888a66270fc219b7336acee03ef1a2332884fb946cbea74e46ce23df5

Analysis

max time kernel
120s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27/07/2024, 21:57

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General

Target

0873264f148f0903959e31f7aa3ff310N.exe
Size

21KB
MD5

0873264f148f0903959e31f7aa3ff310
SHA1

5ac7f1647da4f99ed718cc9c7c14335efa5b1378
SHA256

4c7fed2888a66270fc219b7336acee03ef1a2332884fb946cbea74e46ce23df5
SHA512

afca53ce13769a725c5af932644fdfd7084046236af97088e23d22102c2d0e9256a249ce2ae1f3e955bb22e841a313a4d55dad18de02c4c94fc988c51e7a4cec
SSDEEP

384:QOlIBXDaU7CPKK0TIhfJJcbQbf1Oti1JGBQOOiQJhAT17XwL2iO/2iOs:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJs

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (2536) 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/4924-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233e2-2.dat	upx
behavioral2/files/0x001400000002292d-6.dat	upx
behavioral2/memory/4924-508-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\bin\sunmscapi.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemXml.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\chrome.exe.sig.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightRegular.ttf.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R64.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\PresentationUI.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Calendars.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\7-Zip\Lang\mr.txt.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscorrc.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_d3d.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\limited\local_policy.jar.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jconsole.jar.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l1-2-0.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationClient.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\ReachFramework.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dtplugin\npdeployJava1.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaTypewriterRegular.ttf.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\nashorn.jar.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\7-Zip\Lang\an.txt.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\WindowsFormsIntegration.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.Client.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\PresentationUI.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationClientSideProviders.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\WindowsBase.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-processthreads-l1-1-0.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\7-Zip\Lang\az.txt.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.UnmanagedMemoryStream.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Controls.Ribbon.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\icu.md.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipshi.xml.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Principal.Windows.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsplk.xml.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationFramework.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationClientSideProviders.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_ja.properties.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\7-Zip\Lang\cs.txt.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msix.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Forms.Primitives.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.CodeDom.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationClient.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.VisualBasic.Forms.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationProvider.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Forms.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\UIAutomationClient.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\VisualElements\LogoDev.png.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Internet Explorer\images\bing.ico.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\pt-BR\tipresx.dll.mui.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\ant-javafx.jar.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TraceSource.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\UIAutomationTypes.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationProvider.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\chrome_pwa_launcher.exe.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\unlimited\US_export_policy.jar.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TabTip.exe.mui.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\System\ado\de-DE\msader15.dll.mui.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.resources.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\keytool.exe.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\Common Files\System\msadc\msadcer.dll.tmp	0873264f148f0903959e31f7aa3ff310N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.CodePages.dll.tmp	0873264f148f0903959e31f7aa3ff310N.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	0873264f148f0903959e31f7aa3ff310N.exe

C:\Users\Admin\AppData\Local\Temp\0873264f148f0903959e31f7aa3ff310N.exe
"C:\Users\Admin\AppData\Local\Temp\0873264f148f0903959e31f7aa3ff310N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4924

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-1-5-21-1750093773-264148664-1320403265-1000\desktop.ini.tmp

Filesize
21KB

MD5
6aab3a4115ce181ade5bc341b109852b

SHA1
415abe4f1a4fc5b328ad96a931e46fd61b485565

SHA256
6e4dd1bca1f0f4cc4f1a77488461ea52a804e89a0862db389f803dd73e13633b

SHA512
13099c66186594e669aac991b8034c76f2c67b7d4b2140776ef57807749361d80b760323d8aea9ef3f11df6362622a9cc3d8ef28f1cb8f46d67681db2eb9f4f7

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

Filesize
120KB

MD5
2372705a1a2f8a8627b23b970b1c630f

SHA1
2e72134cd7cfb320c54e8e0c3fdd1db1c97cad47

SHA256
e482ad7c6e91c3722fdc6a62f358c91302a8d1eb31ba5d7a3c7a20ac84e3462a

SHA512
f2bd79ee939ae1c758820b06ce6932d3260ceb07cf25ad5d243d0d6040e7f1c3d17d240b22b1d897942a6a79bdc29738042859075b09fcc0769830766dc871f8

Download Submit
memory/4924-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4924-508-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download