8c084d95ee734c9ea0f4b3cd628f4b0fb9c9321f0fbb1560a46120ff8111b659

Analysis

max time kernel
120s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 03:51

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General

Target

45b2f4f78f4218b517124d248e520180N.exe
Size

32KB
MD5

45b2f4f78f4218b517124d248e520180
SHA1

06d815da3915f759e3733a790a8d055694ee0da9
SHA256

8c084d95ee734c9ea0f4b3cd628f4b0fb9c9321f0fbb1560a46120ff8111b659
SHA512

d3427ca9214f06646233c254c7ad4c14d0935c3420b827252c65bb981eaa4480dbf1d785d5198c478d698484f54c2e965977a185cc2492fb3d812f2d1890415b
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeinv:CTWUnv

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4648) 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/544-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00080000000234e8-2.dat	upx
behavioral2/files/0x001400000002291a-6.dat	upx
behavioral2/memory/544-1136-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.Win32.Registry.AccessControl.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Classic.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-environment-l1-1-0.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019MSDNR_Retail-pl.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Calendars.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationClient.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jre-1.8\bin\javaw.exe.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-ul-oob.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Edm.NetFX35.V7.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.Xml.Linq.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\PresentationCore.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Retail-ul-phn.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\hostpolicy.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Forms.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\UIAutomationProvider.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ul-oob.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_KMS_Client-ul.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\LyncBasic_Eula.txt.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightRegular.ttf.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_OEM_Perp-ul-oob.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WWINTL.DLL.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.el-gr.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Common Files\System\ado\msador15.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\logging.properties.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Client\C2R32.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-ul-phn.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-ul-oob.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\7-Zip\Lang\nb.txt.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\mip.exe.mui.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\UIAutomationTypes.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationFramework.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\UIAutomationClient.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\PYCC.pf.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\WHOOSH.WAV.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.Extensions.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jre-1.8\bin\java.exe.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jre-1.8\lib\management-agent.jar.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Excel.Extensions.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\7-Zip\Uninstall.exe.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-timezone-l1-1-0.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Pipes.AccessControl.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Xaml.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.PerformanceCounter.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\libpng.md.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaSansDemiBold.ttf.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSO.ACL.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-math-l1-1-0.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Xaml.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jsound.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ppd.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\7-Zip\Lang\be.txt.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\tabskb.dll.mui.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.NameResolution.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Input.Manipulations.resources.dll.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_sv.properties.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_CopyNoDrop32x32.gif.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-ppd.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-pl.xrm-ms.tmp	45b2f4f78f4218b517124d248e520180N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-CA\tipresx.dll.mui.tmp	45b2f4f78f4218b517124d248e520180N.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	45b2f4f78f4218b517124d248e520180N.exe

C:\Users\Admin\AppData\Local\Temp\45b2f4f78f4218b517124d248e520180N.exe
"C:\Users\Admin\AppData\Local\Temp\45b2f4f78f4218b517124d248e520180N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:544

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-1-5-21-2990742725-2267136959-192470804-1000\desktop.ini.tmp

Filesize
32KB

MD5
a428ad187d9ef44e9841b313008e3cb9

SHA1
1ae648c3c47f78d82424931ed0d401344e83d375

SHA256
d57c1317c3fb7f64e7bec3129a5c02944e7b477d3be3e11c4023e48866e9fb1e

SHA512
bcd4db3ddeaec67bf34a4c2adb773811198fafc0b96403cc9c9ca4d34ea62eded6f2a94589b2369a6eb861a8230416b9af46279a789582167f207a00051e6ad9

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

Filesize
131KB

MD5
ec9b4206ed4ceabbd8b69d8878d2c150

SHA1
8677fb5eb04b8460ee0a1550681b45308fc5cf45

SHA256
e9c5d185a54afe8d28407169de634a63df6c9e1b4eba1a74717ae0ab718f9c3b

SHA512
b803f42ca4134b8b2967b6bb6c2e3d3c15c0381655da9a380b93c8b4f8af21c1a3a471febdbbb4cb70337850041632063d2a2ca569cafb22cdff7ac80e5c43e8

Download Submit
memory/544-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/544-1136-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download