8a20bae575cc7ff740167b2b05c645f2f0142e4d75da55b2bfcf53a472419077

Analysis

max time kernel
120s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 18:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
Size

69KB
MD5

4d0f4bee023ea2d1ab1b0ece45891ed0
SHA1

3f4b1dcd945092ac4b0d9b1ed496e72bd870b8b3
SHA256

8a20bae575cc7ff740167b2b05c645f2f0142e4d75da55b2bfcf53a472419077
SHA512

1f4b71038ce22639187ade33f1b9a17f524a945bb07a02a74165cce64e6b8453baf4f5dbc476d0ab9d4ba0bc2f000fca982df2e720bd6a88e53bb6dcd1874812
SSDEEP

1536:a7ZyqaFAxTWH1++PJHJXA/OsIZfzc3/Q8Q8/8fCc:enaypQSoskv

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4416) 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/4948-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023631-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/4948-1798-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SLINTL.DLL.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sl-si.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationUI.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\prism_common.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\sunec.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\bci.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AuthoredExtensions.16.xml.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-ul-oob.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsesp.xml.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Quic.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.Watcher.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\SmallLogoBeta.png.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-GB\tipresx.dll.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\ShapeCollector.exe.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\libpng.md.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-pl.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msdaprsr.dll.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.officemuiset.msi.16.en-us.xml.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-ul-oob.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-pl.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\EventSource.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\sqmapi.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CHART.DLL.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Web.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dt_socket.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\ir.idl.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-002C-0409-1000-0000000FF1CE.xml.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\System.Xaml.resources.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ppd.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.cs-cz.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\netstandard.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\PresentationUI.resources.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\PresentationCore.resources.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Collections.Concurrent.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-ul-oob.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.Serialization.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Forms.Primitives.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\vcruntime140_1.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ul-oob.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\mshwLatin.dll.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\mshwLatin.dll.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\System\msadc\msadco.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.OpenSsl.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.Reporting.Common.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CSS7DATA0009.DLL.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Internet Explorer\uk-UA\iexplore.exe.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\rtscom.dll.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\System\ado\msadomd.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Controls.Ribbon.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\WindowsFormsIntegration.resources.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Forms.Design.resources.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\fr-FR\msdasqlr.dll.mui.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Metadata.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ppd.xrm-ms.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.scale-140.png.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\7-Zip\Lang\be.txt.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Windows.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Luna.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\EXCELPLUGINSHELL.DLL.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-string-l1-1-0.dll.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\webkit.md.tmp	4d0f4bee023ea2d1ab1b0ece45891ed0N.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	4d0f4bee023ea2d1ab1b0ece45891ed0N.exe

C:\Users\Admin\AppData\Local\Temp\4d0f4bee023ea2d1ab1b0ece45891ed0N.exe
"C:\Users\Admin\AppData\Local\Temp\4d0f4bee023ea2d1ab1b0ece45891ed0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4948

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=4444,i,6510295916244954942,10164894160290787457,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
1⤵
PID:1776

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

Loading Replay Monitor...

Downloads

C:\$Recycle.Bin\S-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
69KB

MD5
c7bd7d5c27f1d050781330de78e10daf

SHA1
2219ed14a56c0b6ac9e49445e08970261c0056e7

SHA256
950de02335c9f7305ffa0b0c31da507fd1d32a1dcf8dced1d75888916d82a06b

SHA512
9611a4625e0ae579c5521be746c634d00ab3ea7cd286c03c7288f68c4611cb02a708a7b41ab969757cb66a7a0a9e6f71812204c7239dd67b316a003b76f5cfd4

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

Filesize
182KB

MD5
ea37ccfb827508e1fbfdc339247cb315

SHA1
ac7782ac51d7a85a43ffcbe515989bf98bf832e0

SHA256
eecb90cdf6c4077e8b77f2e8dbaf81bb19d4ae92eaeef58c69c9c0e5f36a95f6

SHA512
cdfcbf9a2add3bef6e848da9fd85e8c8dd709ad0627311fdb84f8de2982af20f48415b03670dff027126bc0ca177c7d97efaff24ab9b34eee428baa1124cec16

Download Submit
memory/4948-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4948-1798-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download