e67352ecd9be16a4def7fe35a8518284d0b3256b9adfac75a98f65a21a894c07

Analysis

max time kernel
120s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 14:52

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General

Target

ac4e461c1e51c1fb7af6ef714f7e8090N.exe
Size

49KB
MD5

ac4e461c1e51c1fb7af6ef714f7e8090
SHA1

abc83938f18bbd7761aa91fbb9476a025b6bd8ae
SHA256

e67352ecd9be16a4def7fe35a8518284d0b3256b9adfac75a98f65a21a894c07
SHA512

134aa316fe2c8085d116db67706c8c68a746c74f248f4e65e76fedbe25773a7aaa06eb31cc442277d6dbe6d96080911a1ea5b1f8138756f1e8d7c5c06f2114ba
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeinMdK:CTWUnMdyGdy4AnAP4n

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4680) 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/4536-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002348e-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/4536-971-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ink\nl-NL\tipresx.dll.mui.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\lt.pak.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\default.jfc.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Retail-ul-oob.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial2-pl.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-pl.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Quic.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\ucrtbase.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PenImc_cor3.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail2-ppd.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription5-ul-oob.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-pl.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\ReachFramework.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-180.png.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-utility-l1-1-0.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clretwrc.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140_2.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\javaws.policy.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TelemetryDashboard.xltx.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Sort\AUTHOR.XSL.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-white_scale-140.png.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msproof7.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Primitives.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Luna.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_ca.xml.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\uk.pak.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.EventBasedAsync.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ul-phn.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Retail-ul-phn.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationUI.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Loader.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.Win32.Registry.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Encoding.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Input.Manipulations.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2iexp.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\unicode.md.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-ul-oob.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.DataIntegration.TransformDataByExample.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\EXCELPLUGINCORE.DLL.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.nl-nl.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Common Files\System\ado\msadrh15.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationProvider.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Orange.xml.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\cpprestsdk.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CHAKRACORE.DLL.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\UIAutomationTypes.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\PresentationUI.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\PresentationCore.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Windows.Controls.Ribbon.resources.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-file-l1-2-0.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\asm.md.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ul-phn.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_Subscription-pl.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC_F_COL.HXK.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\rtscom.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\ShapeCollector.exe.mui.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentDemoR_BypassTrial180-ppd.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Trial-ppd.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ul-phn.xrm-ms.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.Office.Tools.Excel.dll.tmp	ac4e461c1e51c1fb7af6ef714f7e8090N.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	ac4e461c1e51c1fb7af6ef714f7e8090N.exe

C:\Users\Admin\AppData\Local\Temp\ac4e461c1e51c1fb7af6ef714f7e8090N.exe
"C:\Users\Admin\AppData\Local\Temp\ac4e461c1e51c1fb7af6ef714f7e8090N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4536

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-1-5-21-523280732-2327480845-3730041215-1000\desktop.ini.tmp

Filesize
49KB

MD5
19323063a1895f7c612b90a4c9698d4e

SHA1
a9d35ba3691296bc4387f776e2669e40ca53cf97

SHA256
4d72897a5c8eb799e17de3262a2fc5c163164cba259e7e9c24eb8af5553d4818

SHA512
15ec07fdd402861ad853f30c18c6b0c5b4692ea08641a9d3fb772a296ab8e71a59855986727dec936acb7da91a53799ab96ae01be1b8c1bd2a648608712d8f83

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

Filesize
148KB

MD5
f63bff64d7cd34b1bd0f9cc21296562c

SHA1
33320fa179c2e91c6de63120ed35f4d5193bea24

SHA256
0ac07c25cd893851e635a3c30ab05a043a608fc2114ce5e20e58e24277bb3659

SHA512
1604dfdb40fbf8b19078a613a9c4b15a07c210843618e0ca6b42800777a2f9ce9988c5d76c344f48e941686115bca006fb5a86674197ebdb809be93f252347c4

Download Submit
memory/4536-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4536-971-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download