5cabdaee88429a8f17428349ceb5f901a6912db015e816189a392bbdb0ee5ace

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 06:35

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General

Target

f5a9a3822676501f339a39abacdfd970N.exe
Size

37KB
MD5

f5a9a3822676501f339a39abacdfd970
SHA1

fb3f00b93719732167084ef0601d37bd2c0e8a75
SHA256

5cabdaee88429a8f17428349ceb5f901a6912db015e816189a392bbdb0ee5ace
SHA512

6da5da7023cdca5d46404dba84e8ceb53e0045f6eefd6303fc329154db7dbc63347b0cdc96bca5c4911f2e306c680ab88361ea38757b153762155814ffa04d32
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcwBcCBcw/tio/tih3y3uP9Py:CTW7JJ7TTQoQh3y3H

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4651) 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/3312-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002362a-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/3312-898-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Quic.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-ul-oob.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Primitives.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Claims.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\UIAutomationProvider.resources.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Trial-pl.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\glib.md.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest1-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Trial-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AUDIOSEARCHLTS.DLL.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\7-Zip\Lang\ug.txt.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-private-l1-1-0.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-phn.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Grace-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_MAK_AE-ul-oob.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\EntityPicker.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp-pl.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL.HXS.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.bg-bg.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.DataContractSerialization.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\en-GB.pak.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription5-pl.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ul-phn.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\GostName.XSL.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as90.xsl.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\CHIMES.WAV.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\InkObj.dll.mui.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\WindowsBase.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\UIAutomationTypes.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Retail-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\7-Zip\Lang\gl.txt.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Configuration.ConfigurationManager.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019VL_MAK_AE-pl.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.DataWarehouse.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Overlapped.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\PresentationFramework.resources.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l2-1-0.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Java\jre-1.8\lib\sound.properties.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.ReportingServices.AdHoc.Excel.Client.Entry.Interfaces.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.Primitives.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\7-Zip\Lang\hi.txt.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msxactps.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationProvider.resources.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Threading.AccessControl.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription2-ul-oob.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MicrosoftDataStreamerforExcel.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymb.ttf.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationProvider.resources.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems64.dll.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.dcfmui.msi.16.en-us.xml.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ul-oob.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Trial-pl.xrm-ms.tmp	f5a9a3822676501f339a39abacdfd970N.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	f5a9a3822676501f339a39abacdfd970N.exe

C:\Users\Admin\AppData\Local\Temp\f5a9a3822676501f339a39abacdfd970N.exe
"C:\Users\Admin\AppData\Local\Temp\f5a9a3822676501f339a39abacdfd970N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3312

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4336,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=3776 /prefetch:8
1⤵
PID:4564

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-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
38KB

MD5
dc444e2a55986727cbadf26621f64f6b

SHA1
caa96c80ba607b35d4984aca7b23003d46cbb8a0

SHA256
9222899a5181b4f7ded16162396358987f6b2866b6a9b1ed4a5809197bbbc595

SHA512
37777e51522c92db999874c5d34fe8cfc941f71a7a521ce143c99d1cc9914258ab961e50d998674723e1ccce49081360cfa99bc76f98c34c0185cc45b4012439

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

Filesize
150KB

MD5
bac7f4ecf45231329b75ebb881b8cd26

SHA1
4254268174a03c4b8ac67e8c1fbbbc64516798bf

SHA256
2150e91605434dccaa4faa341c5ca8806a3dc1bbcd51a6b887b8f7efee70f3f5

SHA512
56fdd7b6a723bd947a6905133bb35f1e482fc78df8e9809f84d35683b9bcbafeb0d06088f49f8eba8967fa7e2a320b49d7c937484806de12c9da60420e74299b

Download Submit
memory/3312-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3312-898-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download