937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e

Analysis

max time kernel
150s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-08-2024 00:40

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Report Analysis Logs

General

Target

937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
Size

98KB
MD5

9a96cfaec6b1626cbb40310a6d223811
SHA1

1c0a33c6de9b1b911feb795cdbb65cbe64ff47f4
SHA256

937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e
SHA512

dd2fd62ddfcd931ff66e18de2d3f50d5600c936b966f3e5023fb93f7aa1dae0a0cdd50989bb1f055da1bd2dcd383cd7ebfecfec32b3fef06b17b41f82eadb222
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxtjm8sv:fnyiQSoojmHv

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5029) 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/692-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233cf-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/692-1822-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\.version.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Forms.resources.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\awt.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Frosted Glass.eftx.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ONENOTEIMP.DLL.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PROOF\msspell7.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\vccorlib140.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.NonGeneric.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.VisualBasic.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\PresentationUI.resources.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-pl.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.Tracing.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages.properties.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_OEM_Perp-ul-phn.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Exchange.WebServices.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\pt\msipc.dll.mui.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\7-Zip\7-zip.chm.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jre-1.8\bin\msvcp140.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\xmlresolver.md.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.contrast-white_scale-80.png.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription4-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tipskins.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\System.Windows.Forms.resources.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationClientSideProviders.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\SmallLogo.png.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\plugin.jar.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.scale-180.png.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoev.exe.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\7-Zip\Lang\ba.txt.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\he-IL\tipresx.dll.mui.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Xaml.resources.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_LinkNoDrop32x32.gif.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\Delete.White.png.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Common Files\System\Ole DB\it-IT\sqlxmlx.rll.mui.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\limited\US_export_policy.jar.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_KMS_Client-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_KMS_Client-ul-oob.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\WIND.WAV.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Trial-ul-oob.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTrial-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL082.XML.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD_COL.HXC.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL093.XML.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.Xml.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationCore.resources.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_OEM_Perp-ul-oob.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Grace-ul-oob.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Common Files\System\msadc\de-DE\msadcer.dll.mui.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Serialization.Primitives.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clrjit.dll.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_KMS_Automation-ul-oob.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial1-ppd.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-pl.xrm-ms.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\7-Zip\7zCon.sfx.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base.xml.tmp	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.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	937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe

C:\Users\Admin\AppData\Local\Temp\937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe
"C:\Users\Admin\AppData\Local\Temp\937ebf9ba683966d8a5cee2839a5ff4c75e7d0779aab7a7c3367d00d799bda6e.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:692

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
98KB

MD5
8e57251a5de25a8977d9122a6b36467e

SHA1
4f40f6077e442ddc46a19328002609e02414e89c

SHA256
04181ec7b64b6aba71bd1eab5306e9821baad545b318f33bdc43b83cd4d25530

SHA512
4a66da92a39c33011baff4632ded8d046b8cbe7d834f0ffb33d6f2a1bbed25954a3db89d4c03097670d1a59a0b890d200697fbd96165bae95814b6212066e9a0

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

Filesize
197KB

MD5
72c4ad2d827f02ce9a180c19f01065cb

SHA1
ed9183cd2398733ab9da04300e86e5dfc4dbbbc7

SHA256
914935a2d083cf6e8c61fd9e8c28f04af4d113367dfa12596b9d7abda84e7ede

SHA512
c4e1e0ed9b0461bfa68135491cb63bba0042d41c0cf3addcd1a170ab7b162a42083625beca0377fd7aa8c3a6ca26b1f0a50214f3599fcb363845169b1de4b195

Download Submit
memory/692-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/692-1822-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download