bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68

Analysis

max time kernel
150s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 08:40

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General

Target

bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
Size

44KB
MD5

143685922828b76090efd7c974e0590f
SHA1

a408538fa4071b16f2fd7760549ece73da51bdd1
SHA256

bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68
SHA512

f8a45ee41f2af03a17e8631e037b6c23ff041ce5bd7639bfdacce443c8d5f695a8d9e64f8323019d5c24a4ca4c7a3bdbb8e35adb0caf6ac538ff3117eecbed62
SSDEEP

768:kBT37CPKKdJJTU3U2lRtJfOLP7Pki9Ei9F:CTW7JJTU3UytJfOL7k7Q

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5206) 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/2472-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233da-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/2472-957-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ppd.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Retail-ul-oob.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.FuzzyMatchingCommon.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\ARROW.WAV.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XPath.XDocument.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XPath.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Formats.Asn1.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Java\jre-1.8\lib\tzmappings.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ul-phn.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\Send2.16.White.png.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\ReachFramework.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\Microsoft.VisualBasic.Forms.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Input.Manipulations.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Retail-ppd.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Trial-pl.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_MAK_AE-ul-phn.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART3.BDR.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InkObj.dll.mui.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Redshift\lib\OpenSSL64.DllA\openssl64.dlla.manifest.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.scale-140.png.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Trial-ul-oob.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OUTLFLTR.DLL.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Trial-ppd.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.TypeConverter.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription2-ppd.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Storage.XmlSerializers.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Common Files\System\ado\ja-JP\msader15.dll.mui.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-pl.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\OFFICE.DLL.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Configuration.ConfigurationManager.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Xaml.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOARIA.DLL.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Primitives.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Forms.Design.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\jcup.md.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Trial-pl.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Retail-pl.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7es.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVPolicy.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Contracts.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dtplugin\npdeployJava1.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-80.png.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\TabTip.exe.mui.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Xaml.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\PresentationUI.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-ppd.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial5-pl.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_Retail-ul-phn.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_KMS_Client-ul-oob.xrm-ms.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Contracts.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\currency.data.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OFFSYMSL.TTF.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.AeroLite.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.VisualBasic.Core.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jsse.jar.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaSansRegular.ttf.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-locale-l1-1-0.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\UIAutomationProvider.resources.dll.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11wrapper.md.tmp	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.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	bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe

C:\Users\Admin\AppData\Local\Temp\bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe
"C:\Users\Admin\AppData\Local\Temp\bf38a3d7ba1084bca94ee3a423ce27addb6a35428527daa434192a5e435acc68.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2472

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
44KB

MD5
7ee9bbbe4613939e883a6b1c00273490

SHA1
6f93cf08755fc8792dd9681018ec7922ef82bfcb

SHA256
108f70f8c2d7eeb2f250bf618bf9fbc770ce16d4a8a19dbfd0a995e21fc141d0

SHA512
1c30809f9a1d3cc7498fc67c30c8ade9f4ef2fcca0cbbf38f2a7c02e09df010c591db23b8d72341e5d98a10a9ed6649999f31783850f789812853a412935886f

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

Filesize
143KB

MD5
487cc7d385495affa020f878cfd2a6d9

SHA1
3b2d736b6be4165fbd9b346074b6806972c8171b

SHA256
0f29622171a859ee262517b32e308297e8a6547f8bf29f25b704e02b1e1f5b07

SHA512
83818d0d88d7d8977917292ba700bc57b9ae1724d037706514a7a08d44f4095c549cdf3bfc64d10d4d80850e899378d5008326df93c72fee0145070c09cd03a6

Download Submit
memory/2472-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2472-957-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download