b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2b

Analysis

max time kernel
120s
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
25/09/2024, 07:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
Size

56KB
MD5

217fc2fadf553fe243801db755479560
SHA1

1e3f55ea5db083a8a5c2b522ac99d0a5703ac351
SHA256

b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2b
SHA512

3fedf0f863c2a2af372b5f7cb9398fc9e00772b1bd55105beb248bd63a5b2b6aab4042095ca42eb0fc7833cdc3d666d8a28dc0fac6ab7dfd4bbb19870642ee72
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI97ykCtCW:V7Zf/FAxTWoJJ7TJykCtCW

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4263) 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/4964-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000234c9-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/4964-808-0x0000000000400000-0x000000000040B000-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.Net.WebClient.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\UIAutomationClient.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Windows.Forms.Design.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-pl.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_F_COL.HXK.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\oledb32r.dll.mui.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.Win32.Primitives.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Common Files\System\Ole DB\msdatl3.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.TypeConverter.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription2-ppd.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ul-phn.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\+Connect to New Data Source.odc.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Office.Interop.Outlook.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\7-Zip\7z.sfx.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-ul-phn.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsesp.xml.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Internet Explorer\ExtExport.exe.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-string-l1-1-0.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\dynalink.md.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-stdio-l1-1-0.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_PrepidBypass-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\bwnumbered.dotx.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\Microsoft.VisualBasic.Forms.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_OEM_Perp-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office15\pidgenx.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Luna.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-stil.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial5-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\EXCELPLUGINCORE.DLL.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\PresentationCore.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-ppd.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.Reporting.Common.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-runtime-l1-1-0.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-ul-phn.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ppd.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTrial-ppd.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_de.properties.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\ReachFramework.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Aero.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-process-l1-1-0.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\deploy.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\psfontj2d.properties.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\7-Zip\Lang\pl.txt.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_KMS_Client-ul.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-synch-l1-1-0.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Gothic-Palatino Linotype.xml.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.DispatchProxy.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-stdio-l1-1-0.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp120.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\public_suffix.md.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Java\jre-1.8\bin\server\classes.jsa.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Trial-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub_M365_eula.txt.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O17EnterpriseVL_Bypass30-ul-oob.xrm-ms.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Forms.Primitives.resources.dll.tmp	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.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	b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe

C:\Users\Admin\AppData\Local\Temp\b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe
"C:\Users\Admin\AppData\Local\Temp\b25fc951e37ac499b50dba5bb742f767cd61710e0129e36dfccace60b26cab2bN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4964

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
56KB

MD5
6863700b6a224ae461ece90f095c011c

SHA1
4dbdb152c9ed666994b8623c5b6bd7dba5504253

SHA256
9d775beb8cfd76513dfa2cf61d0c33497a6f8d539afca03fb5e9f53a53fef4ed

SHA512
a26f058ee49f68ecac625a1bad13f72194500c8c8d2c5588a3db7e5ff7f5c6d03fba3e0be0ad8b37706bf728bce1a738cebf9594fd51fda84f5a437292988a57

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

Filesize
155KB

MD5
7388089943aaace1ade0bfc0b5a52edf

SHA1
8b1d0ed177136f10fe0862f3cbbe2b3fba5e9e6f

SHA256
9d26674fac8d1a10ff30ee037da9428b53a8acaf99efb79bf795d1a8fb2bb6e8

SHA512
891eb9deb77de5af063e7e19a6ecda247ce307138d72858ac5f14a2ca454ffa4c5318a9980f5b7234564bbc7e93953b8c48818b2d09e55ddb7c5c764e9597821

Download Submit
memory/4964-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4964-808-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download