b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ff

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 13:50

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General

Target

b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
Size

38KB
MD5

69f26e9d99efde4af0872226dc7481a0
SHA1

2dac8a49cbc2d1972f3c6e181739d304fcfd1e70
SHA256

b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ff
SHA512

65aa1366392b2d7bcbddaaa9649581aa65ba18c4960b1e103e18af3b272b81b9a2746d75803b31564585ea6bd737cb8d10d719aba426df8ecb6d6559395f4fde
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATBWvyBh85c54w/JYWJYZ:CTW7JJZENTBWv361JYWJYZ

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4678) 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/3436-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002347e-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/3436-930-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Resources\1033\PowerPivotExcelClientAddIn.rll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\7-Zip\Lang\sl.txt.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TextWriterTraceListener.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_KMS_ClientC2R-ppd.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SkypeForBusinessBasic2019_eula.txt.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp140.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp3-ppd.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Retail-ppd.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOSVG.DLL.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Common Files\System\Ole DB\ja-JP\msdasqlr.dll.mui.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.resources.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Extensions.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Java\jre-1.8\bin\jdwp.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART14.BDR.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\7-Zip\Lang\be.txt.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\jni_md.h.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-pl.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogoSmall.contrast-white_scale-100.png.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHSRN.DAT.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipRes.dll.mui.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Forms.Design.resources.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\LogoBeta.png.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial4-ul-oob.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Grace-ppd.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.Interop.Excel.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Java\jdk-1.8\include\jawt.h.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfxswt.jar.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription1-ppd.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\PresentationCore.resources.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Permissions.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\casual.dotx.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-white_scale-140.png.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\PUSH.WAV.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemXmlLinq.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Organic.thmx.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial-Times New Roman.xml.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Resources.ResourceManager.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-pl.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD.HXS.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Edm.NetFX35.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.InteropServices.RuntimeInformation.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XPath.XDocument.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\Microsoft.VisualBasic.Forms.resources.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_ConsumerSub_Bypass30-ul-oob.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\cmm\GRAY.pf.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProMSDNR_Retail-ppd.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\rtscom.dll.mui.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.AccessControl.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Security.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\WindowsFormsIntegration.resources.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription1-ul-oob.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ja\msipc.dll.mui.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoetwres.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\Microsoft.VisualBasic.Forms.resources.dll.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Internet Explorer\en-US\iexplore.exe.mui.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-white_scale-80.png.tmp	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.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	b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe

C:\Users\Admin\AppData\Local\Temp\b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe
"C:\Users\Admin\AppData\Local\Temp\b05fe0f2dd97e5f9a905aea6d418b2ca5e8800cea2435f70e69e4eb8006369ffN.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3436

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

Filesize
38KB

MD5
51cff4e9f95581630296c6a0893f3341

SHA1
164427b0c79a198d72f3f42393fe5559a6188f04

SHA256
fac8050627e4c0bc4330725f8a9d620cd7a434b51c1a0b50998d6864c84e96c6

SHA512
2d576db1b17f59ca6154ccdb4c2393f2595b12a28229c352d74d3b4d4a889d204f4bf100d63b451a80707e2ca121bff9c03863d6b62254e9f938d7d75a124d26

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

Filesize
137KB

MD5
faa7c1359e085f0601c010686156b9d3

SHA1
8ddf9eebf2cafa47dc9893bf07de17c835be6268

SHA256
b7661cb57b24d2a21f43f858a4b92dd3e7e5a90444610124c2435802c50e835d

SHA512
73e2ac2aeaea89db47eb47a8beb2a20bd54756ef52888ab0e0c776e177a79b02fec28eb2e9897b5877001826f756f7af69e7e998c868552cd9f8e273e5a292d4

Download Submit
memory/3436-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3436-930-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download