bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa

Analysis

max time kernel
149s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26/08/2024, 02:33

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General

Target

bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
Size

36KB
MD5

1d3b2e0592fbe098e8575779f2bab13f
SHA1

0fd0b8ea52df0d359550646c6fdb3a772baca626
SHA256

bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa
SHA512

888fd9b77d4cb41401e55179e5815f5bac92e4593468275201bc30c1abe5d4c7cbf2871d5b22cdac312504400e1eb05b5386b2ca8c1181210ef536e4318408e8
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9nGcjkK2rvVk8:CTW7JJ7T7jkKCVk8

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5191) 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/3912-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002346c-2.dat	upx
behavioral2/files/0x000f000000022902-6.dat	upx
behavioral2/memory/3912-907-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\ReachFramework.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue Green.xml.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ppd.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-ul-oob.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.MashupEngine.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\PresentationUI.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Windows.Forms.Design.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-ppd.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\LibCurl64.DllA\OpenSSL64.DllA\libcrypto-1_1-x64.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.ReaderWriter.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationUI.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Internet Explorer\ExtExport.exe.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Client\msvcp120.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.VisualBasic.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_MAK_AE-pl.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\WindowsFormsIntegration.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationClient.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\javafx.properties.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\plugin.jar.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ul.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMePowerPoint.nrr.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AdeModule.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationTypes.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\UIAutomationProvider.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jdk-1.8\include\jni.h.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ul-phn.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\MSHY7FR.DLL.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\sqlxmlx.rll.mui.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\CAMERA.WAV.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL109.XML.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\santuario.md.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\ExpandDismount.bmp.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\fxplugins.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\public_suffix_list.dat.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Windows.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Native.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\zh-CN\tipresx.dll.mui.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\System\wab32.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\ReachFramework.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsoundds.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeOneNote.nrr.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL119.XML.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\7-Zip\Lang\sr-spl.txt.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019XC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Sockets.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encodings.Web.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clretwrc.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\System\it-IT\wab32res.dll.mui.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\mshwLatin.dll.mui.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\tzmappings.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\offreg.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Java\jre-1.8\bin\jfxmedia.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremDemoR_BypassTrial365-ppd.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Core.NetFX35.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\cardview\lib\native-common\assets\[email protected]	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ro-ro.dll.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Glow Edge.eftx.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-ppd.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ul.xrm-ms.tmp	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.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	bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe

C:\Users\Admin\AppData\Local\Temp\bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe
"C:\Users\Admin\AppData\Local\Temp\bf74e011097da6432478f9b05a2903ff84e665253b8310591a6538dc6274acfa.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3912

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
36KB

MD5
7bee7755b7e8297325f6a8e9cce91285

SHA1
a84445da1336fe151c341cb5fa170108ad7a7bce

SHA256
89974ab3928bc85e5e0239c4a60a431243b079723ce373da8ca01d0e5d4aa309

SHA512
fb6c2606ec671218b74b8ce81409a149cb505596de030ba8c5889b9b4e3045520d1ebb108678e15860e811986e5bc89cf4a5db985f07e7e0ff460747ac7f6223

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

Filesize
135KB

MD5
755488ee7d390877c54437293542c9ee

SHA1
ae01308f9ebd4cba9e5ec69fc77e472ec723bee2

SHA256
d670bac62fbcdba34795cbbe017cfd6fc9e7159a674b9860ceb2767c36bb785f

SHA512
ca482d69079e6042d506f791ce90d6b9b94f48038aecbb218eda83e6029af3165f7cc472f736994e9f7861ae1a9e3af8499fb286cf68e6aa3b66733ebc090326

Download Submit
memory/3912-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3912-907-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download