5f1a28b87f66788389e5fee150eac7e5c163937de141161990ac99f60ede5cbe

Analysis

max time kernel
120s
max time network
108s
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, 00:14

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General

Target

88e934e8ca7578457f2203c4e22cb7b0N.exe
Size

86KB
MD5

88e934e8ca7578457f2203c4e22cb7b0
SHA1

d6318e863b6716085eb3846654d2406e9e7492ad
SHA256

5f1a28b87f66788389e5fee150eac7e5c163937de141161990ac99f60ede5cbe
SHA512

a50aa477f443d33fc070114bb8a92ab15fe7841af5adacb360f8a5f2c962d9c23171afd5d34c5efeacfce86919f4521f05c1c76c2a473a25dd895f75a65921fd
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxQiKJAWJA+:fnyiQSoJ

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4309) 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/3204-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023463-2.dat	upx
behavioral2/files/0x00080000000234c3-6.dat	upx
behavioral2/memory/3204-808-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\vccorlib140.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encodings.Web.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-interlocked-l1-1-0.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.OleDbProvider.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.Queryable.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Slice.thmx.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Trial-ppd.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_SubTest-ppd.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordR_Trial-ppd.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.TraceSource.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationFramework.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.DataWarehouse.Interfaces.DLL.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\UIAutomationClient.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\PresentationUI.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_Trial2-ppd.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProVL_MAK-ppd.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentVNextR_Trial-pl.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-pl.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebProxy.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationClientSideProviders.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Windows.Input.Manipulations.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jpeg.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jaas_nt.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Process.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems32.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-stil.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\InkObj.dll.mui.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.CoreLib.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Web.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\Microsoft.VisualBasic.Forms.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Algorithms.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\WindowsFormsIntegration.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AUDIOSEARCHSAPIFE.DLL.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientVolumeLicense_eula.txt.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Windows.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\cs-CZ\tipresx.dll.mui.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\vcruntime140_1.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0016-0409-1000-0000000FF1CE.xml.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Trial-ppd.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ppd.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-pl.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\7-Zip\Lang\hr.txt.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.ReaderWriter.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Windows.Forms.Design.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\THIRDPARTYLICENSEREADME-JAVAFX.txt.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\coreclr.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\PresentationFramework.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteVL_MAK-ul-oob.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_OEM_Perp-pl.xrm-ms.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\mscordbi.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscordbi.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationProvider.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sl.pak.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientLangPack2019_eula.txt.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tr-TR\tipresx.dll.mui.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\Microsoft.VisualBasic.Forms.resources.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\Common Files\System\ado\msado20.tlb.tmp	88e934e8ca7578457f2203c4e22cb7b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-string-l1-1-0.dll.tmp	88e934e8ca7578457f2203c4e22cb7b0N.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	88e934e8ca7578457f2203c4e22cb7b0N.exe

C:\Users\Admin\AppData\Local\Temp\88e934e8ca7578457f2203c4e22cb7b0N.exe
"C:\Users\Admin\AppData\Local\Temp\88e934e8ca7578457f2203c4e22cb7b0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3204

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-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp

Filesize
86KB

MD5
5cef8067cea1feabd81fd19171594177

SHA1
a8106f1e83339c13db9a4e09836f3d2e34368eb9

SHA256
66abf7ec3022fa6fb8337ce78d18a0c9662467b8b5bd709e3265248bab806879

SHA512
8af532f66bdd8e96c9bebc7bed18774da0f172ebe1dc20d3c92dc967e4e7c162a1b65b9aa5506cba7ec26ec59de9daffd035f243ac7d16d720a9c5e19d6814a4

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

Filesize
185KB

MD5
ac67106673bc2e0a8a361c6747bab963

SHA1
4fea493e04a44f43b5527df1f74295ae4bb54eab

SHA256
6010458356d5daeda72b9bee4377b303870fcfcc26745d594010fe132f8bec30

SHA512
1756551ffbd23bc7e0ad5f17f30a78da8d1ec4704ef7343c3fe857246be18536537ddf74f8311e69e0fc9f65cf5c49cf8b784c06c66eb4efbf9cbfac8d93b7c7

Download Submit
memory/3204-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3204-808-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download