99bba6ca2ea8d6315bccb87d2703530e3ef94fb748c543db5bc5921c644e8580

Analysis

max time kernel
120s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 22:13

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General

Target

a7709cd7b37e9912885cb59a6b481d50N.exe
Size

61KB
MD5

a7709cd7b37e9912885cb59a6b481d50
SHA1

f18b8d5f62bf12f4568fbb37a443e592d35bc1fd
SHA256

99bba6ca2ea8d6315bccb87d2703530e3ef94fb748c543db5bc5921c644e8580
SHA512

8a67aa552569d42748cb9c4a576aa9f7569c5a0c5671ba205abbe32d8c06598ebabfd2a282a70a3df005bb455ac80d96eb02e532698734eed0c9993c23e4d858
SSDEEP

768:W7BlpppARFbhjbhg42LcfpR42LcfpVF/MF/3Nw/Nwk0cEMdV8IEMdV85/w:W7ZppApBULcfpHLcfpX2/Nw/NwmxL

Score

9^/10

discovery ransomware

Malware Config

Signatures

Renames multiple (4217) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-pl.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\MEIPreload\manifest.json.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-runtime-l1-1-0.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\desktop.ini.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Grace-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Excel.BackEnd.XmlSerializers.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Channels.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Xaml.resources.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\dt_shmem.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\colorimaging.md.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp4-pl.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_MAK_AE-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_KMS_Client-ul.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-changjei.xml.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-console-l1-2-0.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-synch-l1-2-0.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest5-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.ServicePoint.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Internet Explorer\de-DE\iexplore.exe.mui.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.FileVersionInfo.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\WidevineCdm\LICENSE.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-math-l1-1-0.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-pl.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Retail-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcer.dll.mui.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Forms.Primitives.resources.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngcc.md.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jre-1.8\bin\keytool.exe.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ul-phn.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Common Files\System\Ole DB\oledbvbs.inc.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pkcs11.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win7.wmv.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Trial-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WordNaiveBayesCommandRanker.txt.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.Office.Tools.Excel.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Google\Chrome\Application\initial_preferences.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Garamond.xml.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\lt.pak.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial3-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Common Files\Services\verisign.bmp.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationTypes.resources.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\libpng.md.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-file-l2-1-0.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Trial-ppd.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Transactions.Local.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Java\jdk-1.8\include\win32\jni_md.h.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019VL_MAK_AE-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\mscordaccore.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Loader.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\ReachFramework.resources.dll.tmp	a7709cd7b37e9912885cb59a6b481d50N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessRuntimeR_PrepidBypass-ul-oob.xrm-ms.tmp	a7709cd7b37e9912885cb59a6b481d50N.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	a7709cd7b37e9912885cb59a6b481d50N.exe

C:\Users\Admin\AppData\Local\Temp\a7709cd7b37e9912885cb59a6b481d50N.exe
"C:\Users\Admin\AppData\Local\Temp\a7709cd7b37e9912885cb59a6b481d50N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2192

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-1-5-21-2392887640-1187051047-2909758433-1000\desktop.ini.tmp

Filesize
61KB

MD5
0d70b41700e1ed669f474dc399f6a3fc

SHA1
87af02d1b971d02964c1e5e4fd4af7be9779fd58

SHA256
77143a57a01bc9127b3aa99b06336862e1ad40938bdc5faa6ab88d60e902eb02

SHA512
e0cb72b11bc292af17e6324a13cf0779ecfa3de9448965062fa53e41cc2a09f911345fe83ef35f996a218d78d4e047c535f5267d315c61e326c8dd5fca76d75f

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

Filesize
160KB

MD5
c42630bfd0446b77045a6834a538ed7b

SHA1
d3d8ca01235efac744ecbe2d301856856ee7b710

SHA256
8b0be768fc2de4fc52d124d5cb17caebeaa191d62ab9a859e565f4dda096be93

SHA512
d02fcdf88bd41391bfc32c5e97a9bdb213295a4149ba246eaf995666567c2b52c67a42e0bf1ac02ef711cafba3d64f018524504f8b8504549be234d176fd3517

Download Submit