66119fb9e79a1af91e6c70485decb7f2228b858b05828e81a2742e81dd3c17f8

Analysis

max time kernel
31s
max time network
38s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2024 13:44

Sharing

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Reason

Machine shutdown

Report Analysis Logs

General

Target

8e2d67b366b34bc1b2b69edbbbb88800N.exe
Size

46KB
MD5

8e2d67b366b34bc1b2b69edbbbb88800
SHA1

0eb31110f46b458492a0c695dcf4429d8846e0a5
SHA256

66119fb9e79a1af91e6c70485decb7f2228b858b05828e81a2742e81dd3c17f8
SHA512

3d0450be6fc0223af3be2e7054bd8c84e0a828c6d5d5c586e50a1be1e3455cd3a7f262878a6f6f941995adb0a79d29c53b39c4e285fe78d273f5963818bd91c7
SSDEEP

768:kBT37CPKK1EXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rcu90TKe+0TKeinMdA:CTWUnMdyGdy4AnAP4N

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (996) 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/4196-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0008000000023458-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/4196-864-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-heap-l1-1-0.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Pipes.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XmlDocument.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee100.tlb.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.Encoding.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.FileSystem.Primitives.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\7-Zip\Lang\da.txt.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\System\ado\en-US\msader15.dll.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.NETCore.App.deps.json.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.CSharp.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TipTsf.dll.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.TypeExtensions.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XmlSerializer.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Input.Manipulations.resources.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-2-0.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Text.Encoding.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Ping.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-file-l1-1-0.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.Tools.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Linq.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\7-Zip\Lang\nl.txt.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\micaut.dll.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\UIAutomationClient.resources.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\tipresx.dll.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\System\ado\msado27.tlb.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Emit.Lightweight.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.HttpListener.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.InteropServices.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Principal.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\System.Xaml.resources.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hu-hu.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscorrc.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\7-Zip\descript.ion.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\7-Zip\Lang\sk.txt.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\7-Zip\Lang\sq.txt.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\7-Zip\Lang\tg.txt.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ShapeCollector.exe.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TextWriterTraceListener.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.DataAnnotations.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Configuration.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\InputPersonalization.exe.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hr-HR\tipresx.dll.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\lt-LT\tipresx.dll.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Ping.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.NameResolution.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Claims.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\WindowsFormsIntegration.resources.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-runtime-l1-1-0.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\SubsystemController.man.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.TraceSource.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Pipes.AccessControl.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Drawing.Primitives.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.pt-pt.dll.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.cab.cat.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipRes.dll.mui.tmp	8e2d67b366b34bc1b2b69edbbbb88800N.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	8e2d67b366b34bc1b2b69edbbbb88800N.exe

C:\Users\Admin\AppData\Local\Temp\8e2d67b366b34bc1b2b69edbbbb88800N.exe
"C:\Users\Admin\AppData\Local\Temp\8e2d67b366b34bc1b2b69edbbbb88800N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4196

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
47KB

MD5
14146e58624abd26ed3849edd997b8ba

SHA1
8739ff0cf2cf7280beba010d27b418e37d8ab2ac

SHA256
09dc9bbf5dec760a37c608704c147df74e4d1c2b09910659ac1dc1d2348e248d

SHA512
81d005675b04732225b1960d9db36d968386e57f21314df438654eaa8987cdd0d2801f8225cd2030b5a97e5f8339a3921d6ac403d9a86af4092fdc074ae1236d

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

Filesize
146KB

MD5
9b6a8721e5248f081a2fac6006ea8ab2

SHA1
0627d27e572a94b30162eb0bd7b1fa9362153ef4

SHA256
da498cb73a120cb67088c229e7b33290059d1e948a813f9bbde3792a1002619f

SHA512
cf124f1a337ad2b64f378fc6941231def3d9da5e767b5eebeb6b88bfbecc9294ce141bdadd583e077206a7f538c55c7bf38414eb7b66c863e4e04ab3d440ccd7

Download Submit
memory/4196-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4196-864-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download