1af4a7c8662406b22c5d04e14c7634c373bdb1c1a563316f3e5a999c134a3b6c

Analysis

max time kernel
120s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2024, 11:04

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General

Target

c4264923719e2711676bda87e55dac20N.exe
Size

47KB
MD5

c4264923719e2711676bda87e55dac20
SHA1

adcb9a22a66727a469dcd2e56442be2691c32a79
SHA256

1af4a7c8662406b22c5d04e14c7634c373bdb1c1a563316f3e5a999c134a3b6c
SHA512

1ed9d17c8d202e2402c8c95f1991ab77962dd1ca1fae85f6516c11eeff91a900d0bd9a8c842f64e85c7bf0764851e6c583a969e8668a7ada93d58317b4602dad
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJBZBZaOAOIB3jM2jMHrRr5:V7Zf/FAxTWoJJB7LD2I2IHtt

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4641) 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/5104-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002340f-2.dat	upx
behavioral2/files/0x0014000000022946-6.dat	upx
behavioral2/memory/5104-1826-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\bin\mlib_image.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Grace-ul-oob.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalR_Trial-pl.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-ppd.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART10.BDR.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\7-Zip\Lang\cy.txt.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\DataServices\DESKTOP.INI.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Private.Xml.Linq.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationTypes.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\pkcs11wrapper.md.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogoSmall.scale-100.png.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-heap-l1-1-0.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebClient.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\jcup.md.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\flavormap.properties.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.NetworkInformation.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\charsets.jar.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ul-phn.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Thread.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.Primitives.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\UIAutomationClient.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jre-1.8\lib\logging.properties.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Orange.xml.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\7-Zip\Lang\va.txt.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jps.exe.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\packager.jar.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Office.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Writer.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\dt_shmem.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Client\msvcp120.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\dbgshim.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\UIAutomationProvider.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\instrument.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\java_crw_demo.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Blue Warm.xml.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power View Excel Add-in\Microsoft.PowerBI.Diagnostics.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-100.png.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\7-Zip\Lang\gu.txt.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Common Files\System\ado\msado20.tlb.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Forms.Design.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Grace-ul-oob.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer2019_eula.txt.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\7-Zip\7-zip.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.AeroLite.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\ecc.md.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdCO365R_SubTrial-ul-oob.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Sort\YEAR.XSL.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.Emit.ILGeneration.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\WindowsBase.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_OEM_Perp-pl.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WINWORD.HXS.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\server\Xusage.txt.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Java\jre-1.8\bin\plugin2\vcruntime140.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_MAK-ul-oob.xrm-ms.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.AccessControl.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Pipes.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Controls.Ribbon.resources.dll.tmp	c4264923719e2711676bda87e55dac20N.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	c4264923719e2711676bda87e55dac20N.exe

C:\Users\Admin\AppData\Local\Temp\c4264923719e2711676bda87e55dac20N.exe
"C:\Users\Admin\AppData\Local\Temp\c4264923719e2711676bda87e55dac20N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5104

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-1-5-21-47134698-4092160662-1261813102-1000\desktop.ini.tmp

Filesize
47KB

MD5
4cfb86ee4ebcd9e6fb699ee333a7b265

SHA1
24d02165be2a35ac13acd12dfab0b015a4ad42c9

SHA256
9bdf72a22381c46c755179859295fa6b543b0b64a24cb5652d27988e25b2f681

SHA512
25faa811a2902b48e6eee5eecc74680e6ea63e062a66a84469f39276900a83c843e3093b56ca80a4a5d79088e540ba62e25bbe0ae283b9e6c27773eb4a337f92

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

Filesize
146KB

MD5
02d4affdc3a760b6c561c66a2d5154c0

SHA1
6bbaa860e364f99f56b03ceaad4fcd5bf1c9238a

SHA256
de4ca351e7cbcc784823f0fe0df33edcb8935af21293ebbf1172465866dfcbb6

SHA512
8561dcc2363921fd26e80aae01d92110a88eefc6bc3367a40ac36bdd7e7e549377b46d650c7a8eb721eebd48b1eb9a60cf096b50b37aaedcf01ef8dfc667b0ad

Download Submit
memory/5104-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5104-1826-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download