a7b9983f9a69f421b96ac34d740ca5976001ebae07daf4744ff7679ea211cb7a

Analysis

max time kernel
119s
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
14/08/2024, 02:54

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General

Target

cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
Size

69KB
MD5

cd8b60a6a5ff694b8491c45fa0cb6c30
SHA1

c9d411e02f7ed6a7e011a6aed38f011591f46333
SHA256

a7b9983f9a69f421b96ac34d740ca5976001ebae07daf4744ff7679ea211cb7a
SHA512

7e4dd888f5fc2bdc9b865eba0a3734123c1c40bdf162597b755ae2452054448b9c8b3eeda1e8da64043ae2b13a66f85e626f30806b9f40aa41f4d1300fcc9fcf
SSDEEP

1536:a7ZyqaFAxTWH1++PJHJXA/OsIZfzc3/Q8Q8/8fCZ:enaypQSoska

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4660) 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/4328-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233f0-2.dat	upx
behavioral2/files/0x000c0000000220a6-6.dat	upx
behavioral2/memory/4328-1914-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\ta.txt.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.Win32.Primitives.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp2-ul-oob.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\ReachFramework.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-locale-l1-1-0.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\unlimited\local_policy.jar.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-timezone-l1-1-0.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_MAK_AE-pl.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Data.ConnectionUI.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-100.png.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp120.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\ReachFramework.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXCEL_F_COL.HXK.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSOARIANEXT.DLL.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\7-Zip\Lang\da.txt.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Calendars.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\libffi.md.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16ConsumerPerp_Bypass30-ppd.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription3-ppd.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ppd.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsesp.xml.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Forms.Primitives.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-ul-oob.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-ppd.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Grace-ppd.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1036\MSO.ACL.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsptb.xml.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaBrightItalic.ttf.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoVL_KMS_Client-ul.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\zh-CN\tipresx.dll.mui.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\xerces.md.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-ppd.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\es-MX\tipresx.dll.mui.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\System.Windows.Forms.Design.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\System.Windows.Forms.Primitives.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\VISUALIZATIONENGINE.DLL.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\msvcr120.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\WindowsFormsIntegration.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-001B-0409-1000-0000000FF1CE.xml.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\UIAutomationClient.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2iexp.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaSansRegular.ttf.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfr.jar.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-pl.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-pl.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\images\default\linkedin_ghost_school.png.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\7-Zip\Lang\ru.txt.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.FileSystem.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Configuration.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Serialization.Xml.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.Pkcs.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\PresentationUI.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaTypewriterBold.ttf.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clrjit.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Xaml.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-ul-oob.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Principal.Windows.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationProvider.resources.dll.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ul-phn.xrm-ms.tmp	cd8b60a6a5ff694b8491c45fa0cb6c30N.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	cd8b60a6a5ff694b8491c45fa0cb6c30N.exe

C:\Users\Admin\AppData\Local\Temp\cd8b60a6a5ff694b8491c45fa0cb6c30N.exe
"C:\Users\Admin\AppData\Local\Temp\cd8b60a6a5ff694b8491c45fa0cb6c30N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4328

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
69KB

MD5
c618df8d9092cf5cab410c3803bbb842

SHA1
4343fa5da1f445c7962a15ab511798b098b5bf9c

SHA256
f181106763fc1bb5b3750ca5a6505fe3891dffc098ec757951a4ad4ce66ce045

SHA512
2edee6c78b968e9f8ba1f79efd985883459c14ff72936ed7204057748be081b50d0ceb0153870919fd946a07967b7ca38c68004399814b25d605bd63ba036e5e

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

Filesize
168KB

MD5
4fca82127b14f389ef03a095dcf0ceba

SHA1
a623ca98c50e33a402cf6ce3478de16c641aad07

SHA256
1400ace860813c54891ea37724a4df8ec44eba532929b4d503ffffbdc37752f2

SHA512
f6fccd8880d98bfa61c6e570c87dd52412c99d7b2c4b2c9c0bcced9738bdf52c34c9570bec0f91ce63d27d8a521ea50015b2520f210bf7fc0278ef31a2b0c915

Download Submit
memory/4328-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4328-1914-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download