962f1e2b13aa2ce3a6b569afe7f628672ebfde6d3e6a3548bb6882819904c5a9

Analysis

max time kernel
120s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2024, 01:00

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General

Target

f5487bc22b1b03559f6211b1656a18b0N.exe
Size

94KB
MD5

f5487bc22b1b03559f6211b1656a18b0
SHA1

f2d5eaac38c89a87eb311f35af1a8622e4984419
SHA256

962f1e2b13aa2ce3a6b569afe7f628672ebfde6d3e6a3548bb6882819904c5a9
SHA512

a981eb9b7ad4fcba8e16bf85352ac463f23b9b1f1e0d6891ee4a6ce016ae57c214a7e694409f966b51a9bbd2645d214f7417d117e9eb21ced64183553eb1f79b
SSDEEP

1536:a7ZyqaFAxTWH1++PJHJXA/OsIZfzc3/Q8asUsJOLKc/xJtLJtTG/:enaypQSohsUsUKH

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4506) 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/1536-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000a0000000233e2-2.dat	upx
behavioral2/files/0x0004000000022922-6.dat	upx
behavioral2/memory/1536-860-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Trial-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.Expressions.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\mesa3d.md.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\deploy.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.scale-80.png.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationTypes.resources.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\UIAutomationClient.resources.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\management\snmp.acl.template.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Configuration\card_terms_dict.txt.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\ShapeCollector.exe.mui.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InkObj.dll.mui.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\colorimaging.md.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win7_RTL.wmv.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\mlib_image.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\7-Zip\Lang\vi.txt.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\DisconnectOut.ico.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Drawing.Common.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\PresentationCore.resources.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\es\WindowsFormsIntegration.resources.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Security.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\netstandard.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Channels.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_fr.properties.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription3-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProO365R_Subscription-pl.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_OEM_Perp-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\7-Zip\7zG.exe.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\tabskb.dll.mui.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\nashorn.jar.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe.config.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationTypes.resources.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\jopt-simple.md.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_OEM_Perp-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_KMS_Client_AE-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Data.DataSetExtensions.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_OEM_Perp-pl.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Input.Manipulations.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessVL_MAK-pl.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription1-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Timer.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-runtime-l1-1-0.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\WindowsAccessBridge-64.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.SPClient.Interfaces.DLL.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-black_scale-80.png.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipTsf.dll.mui.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Trial-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_Grace-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_SubTest-ul-oob.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.scale-140.png.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ppd.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalPipcR_OEM_Perp-pl.xrm-ms.tmp	f5487bc22b1b03559f6211b1656a18b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-140.png.tmp	f5487bc22b1b03559f6211b1656a18b0N.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	f5487bc22b1b03559f6211b1656a18b0N.exe

C:\Users\Admin\AppData\Local\Temp\f5487bc22b1b03559f6211b1656a18b0N.exe
"C:\Users\Admin\AppData\Local\Temp\f5487bc22b1b03559f6211b1656a18b0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1536

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-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini.tmp

Filesize
94KB

MD5
c2840dd9b525b3a803f0954f0bcb4d8c

SHA1
68280b72b2daf2f5af3e65d06d027871d3f5e5df

SHA256
ddcbdd44c7e226e93698416fbb374d8262fa259f02d4322e2f5822731ab02587

SHA512
74762089bd34012946f02690cfd2b6864ddd31b4e9863e6a0de716e01b5e37c9ab7b142a354a8c0643054394efa6253c5847fb53d43c88e15367ea290805e01d

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

Filesize
193KB

MD5
7b0781bde871962af699300c53094517

SHA1
18f0f37e66b69d3232527459a213e5ca565629e0

SHA256
83be48d6bded6c95a45797863806b8b060c43db372abb35f9b323dc0fff09860

SHA512
e6afb499bc97f96a3924293b9232dd71c7e4474198282948ceea02fc2ce39e80a51f8b5b5ec2d197f8d02363c8550fa4e57f7ecd18bc4d5264ad119be7cdfc11

Download Submit
memory/1536-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1536-860-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download