445db8da09e7ca87ac6676e74df0607bf82f6d5decedb0b92e1205a5d4282888

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 20:47

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General

Target

04531f8aa932d74b036eb5a8ba1c2240N.exe
Size

47KB
MD5

04531f8aa932d74b036eb5a8ba1c2240
SHA1

15e26a797813eda44de8e6cba01b3ce856daf935
SHA256

445db8da09e7ca87ac6676e74df0607bf82f6d5decedb0b92e1205a5d4282888
SHA512

549b39e862418f4d0c4f688a1973a0c551a5bc2941323ac8fa3ebac0faee8984e097c472ae2fca4b9fb12397e9bb92a8df3d0e347f6aca8d0fb0c01a6adf1f30
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9NoN+OiJGfOiJfoN+OiJ5:V7Zf/FAxTWoJJ7TSbKby

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5204) 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/4720-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233ed-2.dat	upx
behavioral2/files/0x000a000000023438-6.dat	upx
behavioral2/memory/4720-904-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationCore.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_F_COL.HXK.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Ping.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Emit.Lightweight.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\colorimaging.md.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\profile.jfc.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-ppd.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.Win32.Primitives.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Primitives.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Trial-ul-oob.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.contrast-black_scale-80.png.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sk-sk.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ObjectModel.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001F-0C0A-1000-0000000FF1CE.xml.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\ANALYS32.XLL.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\Salesforce\lib\sbicuin58_64.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Crashpad\metadata.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.HttpUtility.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jsse.jar.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-ul-oob.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-ul-phn.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\osfFPA\addins.xml.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipRes.dll.mui.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Security.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\PresentationCore.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ReachFramework.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.contrast-black_scale-100.png.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\UIAutomationProvider.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019MSDNR_Retail-ppd.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\shaded.dotx.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1036\MSO.ACL.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clretwrc.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationProvider.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Integral.thmx.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_OEM_Perp-ppd.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\7-Zip\Lang\de.txt.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-pl.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PAGESIZE\PGLBL116.XML.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Fonts\private\MTCORSVA.TTF.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\WindowsBase.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationCore.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-ppd.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jdwp.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\rsod\powerpointmui.msi.16.en-us.boot.tree.dat.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\InkObj.dll.mui.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\InkObj.dll.mui.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.rll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Input.Manipulations.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140_1.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Fonts\private\MISTRAL.TTF.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Brotli.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.Xml.Linq.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Xaml.resources.dll.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe.config.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-ul-oob.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial3-pl.xrm-ms.tmp	04531f8aa932d74b036eb5a8ba1c2240N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\jopt-simple.md.tmp	04531f8aa932d74b036eb5a8ba1c2240N.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	04531f8aa932d74b036eb5a8ba1c2240N.exe

C:\Users\Admin\AppData\Local\Temp\04531f8aa932d74b036eb5a8ba1c2240N.exe
"C:\Users\Admin\AppData\Local\Temp\04531f8aa932d74b036eb5a8ba1c2240N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4720

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
48KB

MD5
284259e153e09553eaf2cab0444e9729

SHA1
112ebf353abdb029f03cd76c576d88e9f969982c

SHA256
520a86acbcba4b4fd79ec6771d624e3b05779cfa6a9cd3b0d0bbaccc8caaa65e

SHA512
177247bc2a591453667742d589d7afeebeeaf6488393ca97acb6315368f992930b9f21547a1c163309ff3b587e2c7730c00f7cd9efee53d1d30b73926fd7482e

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

Filesize
146KB

MD5
af6825a0d541c1648a67750ef3ca045a

SHA1
f93cc58458da71d45b29cba57d4eeecb7328ec50

SHA256
b0aaee983f48183d40aec90cdf7e21cda9acae3063e140fafd7715aaba93eb56

SHA512
4011d169fe59cb81241054e95f6ef3fa48e55a5f9d4bbe7135a1f402711721d6f6c5339ad561dc6b5d119c37ae1496c57b3fc968bf9cc55c10088e7fc935159e

Download Submit
memory/4720-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-904-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download