def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789

Analysis

max time kernel
149s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-08-2024 03:16

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General

Target

def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
Size

61KB
MD5

d4dfde9d7cd93f7763e417f97f24b422
SHA1

c28e952f2a5e80ea32a17719e1d69c093f7b43d2
SHA256

def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789
SHA512

d0c05785633b0fa9b380cbf4def98ac8393b75b20e2e9f35e1cc4fdcbbfa9054960196b8a280c914f32ba7fa2c599e1bbef74208c93d5602e8b498ab4e6228c7
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyl2Sm0mdnwNSB4QB4h:fny1tE42rnwNSB6

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5200) 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/444-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023496-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/444-1958-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\sqlxmlx.rll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jdk-1.8\include\jni.h.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Grace-ppd.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-ES\TipRes.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\InputPersonalization.exe.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\UIAutomationClientSideProviders.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\javafx.properties.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial-ul-oob.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\System\ado\fr-FR\msader15.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.Design.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_OEM_Perp-ul-oob.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019R_Retail-ul-oob.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\sr-Latn-RS\msipc.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\UIAutomationTypes.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jre-1.8\bin\dt_shmem.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ppd.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-pl.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Excel.BackEnd.XmlSerializers.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe.config.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\sk-SK\tipresx.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Csp.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-memory-l1-1-0.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jre-1.8\bin\sunmscapi.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription1-ppd.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-ul-oob.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-ppd.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\PresentationFramework.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Retail-ul-phn.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_OEM_Perp-ul-oob.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN044.XML.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\SAEXT.DLL.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Common AppData\Microsoft Help\MS.SETLANG.16.1033.hxn.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msdaprsr.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encodings.Web.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointR_Retail-ul-oob.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGMN103.XML.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\rtscom.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XmlSerializer.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Cryptography.Pkcs.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\MsoAriaCApiWrapper.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\mscss7cm_es.dub.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-process-l1-1-0.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-ul-oob.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-file-l2-1-0.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\el\msipc.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.PowerPivot.ExcelAddIn.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\osknumpad\osknumpadbase.xml.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Common Files\System\Ole DB\es-ES\msdasqlr.dll.mui.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\WindowsFormsIntegration.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationNative_cor3.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\PresentationUI.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sk.pak.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jre-1.8\lib\images\cursors\win32_MoveDrop32x32.gif.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebProxy.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Input.Manipulations.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Java\jdk-1.8\bin\servertool.exe.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-phn.xrm-ms.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\Microsoft Office\root\Office16\wordvisi.ttf.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.EventBasedAsync.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationCore.resources.dll.tmp	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.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	def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe

C:\Users\Admin\AppData\Local\Temp\def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe
"C:\Users\Admin\AppData\Local\Temp\def2f6544842b0681d7d9e0c8113bbf37930e49bc285c4ac23dd5a788b665789.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:444

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-1-5-21-4182098368-2521458979-3782681353-1000\desktop.ini.tmp

Filesize
61KB

MD5
eec73190bf48e6cd6b3fa96e5b289a32

SHA1
62c0d2233f6baff8f257471ba7253ff9f32beebd

SHA256
3166b619c4798759f85035f6b7a21fe3e676353228c687bc9caeb0fd8ac4bce2

SHA512
b4cda220f4b2c32190dcd5c2be743a5e5fb48aef668f1a356f1c836bf363e240d4934d943e2275628ea815708c26e64c48160d3da03239ed97fad43296c5d754

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

Filesize
160KB

MD5
2783e33a83359b3f3c0966f5336ed9c7

SHA1
72f73ba05be88c5661a4e6efaf12a3f3c7ec7801

SHA256
f723308256a7bb5f0929d91cb40a7c68c64fb75aa4ec4406967f85987a85c780

SHA512
6d878be08c821666ee048bbdaab581581d902b4621bb69b66288da5560c31d43cc42587270d52dfb77b0dea3df55a36ed891da7d67bb2ca4a125268650a39a86

Download Submit
memory/444-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/444-1958-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download