f0723dd1fcbff1ca653426812a63fb8fde5e24660af90cb02b37206024bd94de

Analysis

max time kernel
119s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/08/2024, 03:03

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

3e465ac04da773a88ef9d92960092540N.exe
Size

32KB
MD5

3e465ac04da773a88ef9d92960092540
SHA1

4d3be85556b85d83d5e4a5bc8da0736b4ff4f226
SHA256

f0723dd1fcbff1ca653426812a63fb8fde5e24660af90cb02b37206024bd94de
SHA512

dfe1f5f3d5485ccfce73cc5f25985c1e42e018d1ca61225054f2e598553fd77552b01ec944362ba03f2171e44b3d57d43cee33641936cd3981e25ca6dfb9509c
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeIiKxf:CTWJGpG0

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4650) 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/4548-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233c3-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/4548-1218-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.EventLog.Messages.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaSansDemiBold.ttf.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-oob.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-100.png.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-pl.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ea-sym.xml.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.Win32.Primitives.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\vcruntime140_cor3.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Presentation.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationClient.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2iexp.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Java\jre-1.8\lib\psfontj2d.properties.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\xalan.md.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WordNaiveBayesCommandRanker.txt.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-180.png.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoia.exe.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Core.NetFX35.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\WPFEXTENSIONS.DLL.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Resources.Writer.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.DataContractSerialization.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Client\concrt140.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-ppd.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.SecureString.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\PowerPivotExcelClientAddIn.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_OEM_Perp-ppd.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Common Files\System\msadc\en-US\msdaremr.dll.mui.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.runtimeconfig.json.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\System.Windows.Forms.Design.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\resources.pak.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ServiceProcess.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationUI.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.PowerBI.Diagnostics.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsBase.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.scale-80.png.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7cm_es.dub.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Forms.Design.Editors.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-0409-1000-0000000FF1CE.xml.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\HarvardAnglia2008OfficeOnline.xsl.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\7-Zip\Lang\va.txt.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Diagnostics.EventLog.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_OEM_Perp-ul-oob.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-ul-oob.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.DLL.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.NETCore.App.runtimeconfig.json.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\PresentationFramework.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.DirectoryServices.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ppd.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Dynamic.Runtime.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\PresentationUI.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\flavormap.properties.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_KMS_Automation-ppd.xrm-ms.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationProvider.resources.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\officeinventoryagentfallback.xml.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Document.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\WHOOSH.WAV.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\7-Zip\Lang\hr.txt.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.Specialized.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.Expressions.dll.tmp	3e465ac04da773a88ef9d92960092540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Ping.dll.tmp	3e465ac04da773a88ef9d92960092540N.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	3e465ac04da773a88ef9d92960092540N.exe

C:\Users\Admin\AppData\Local\Temp\3e465ac04da773a88ef9d92960092540N.exe
"C:\Users\Admin\AppData\Local\Temp\3e465ac04da773a88ef9d92960092540N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4548

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-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

Filesize
32KB

MD5
dfdef54a41267687ae9d93cbc0786175

SHA1
e76abecbee5348763c23d95776290b80af328350

SHA256
f6967125e315063b3e5bc6e249e21a94ca869cd2e31dcc6a2433f4a152207cd3

SHA512
a7a8d41cdac603f4a930d75e06a4e08c6a7abe14e5faa070b53d31ca23fb8db56d3dcf11dfdd0587bc270bed26ee09dbe39662d5fba6e307a42e546eb679cb0c

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

Filesize
131KB

MD5
27bce08e2a528ade86df372fe0d0de18

SHA1
6a5a1709633db78d05f3b69c11fc02d2c03c8ac6

SHA256
a7f1129623a74fce183f865e8706acdf297275581530a2a510c65381b0514849

SHA512
9ac059ddca1ba7ff28f6780de2837ab150572aa3415550dd8ed51a315b1f1e9d4704d7de3ae1e0c9cbe795a3651f9211bfee3684e8d0893b6d3cf3c6825f03b9

Download Submit
memory/4548-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4548-1218-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download