a3d8343a2049c060eda8f77b9b3ecb2c6e810395868d288e69a4e7b02f8d5773

Analysis

max time kernel
120s
max time network
121s
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, 13:35

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General

Target

9f33b354d83bbda48dac8e6be7c71080N.exe
Size

54KB
MD5

9f33b354d83bbda48dac8e6be7c71080
SHA1

ddf5c583cd8a467bd3253c0bbb38f844cb5a5d2f
SHA256

a3d8343a2049c060eda8f77b9b3ecb2c6e810395868d288e69a4e7b02f8d5773
SHA512

51dd87a7ca70e339ae51906aa0f33622f09cb8aca515045f0bb952988d1f8275b1f5516ceb1d620d9fe7955644a03bd145bde9760a400dc46c62f96d736b2bd0
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcI9gu:V7Zf/FAxTWoJJ7T2u

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4647) 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/3240-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000a0000000233fa-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/3240-922-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\clrgc.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\Microsoft.VisualBasic.Forms.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookVL_MAK-ul-oob.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART9.BDR.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\WindowsBase.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest4-pl.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_MAKC2R-pl.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\NL7MODELS0009.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-synch-l1-2-0.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Xaml.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-time-l1-1-0.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-convert-l1-1-0.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_Retail-pl.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.Design.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\de.pak.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jre-1.8\bin\zip.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019MSDNR_Retail-ul-oob.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CSS7DATA000A.DLL.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.scale-140.png.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Controls.Ribbon.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr.jar.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jre-1.8\bin\unpack.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudentR_OEM_Perp-ul-phn.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FilterModule.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Trial-ul-oob.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Common Files\System\ado\msado60.tlb.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\PresentationFramework.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\vcruntime140_cor3.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\include\jawt.h.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\ffjcext.zip.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\resources.jar.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RInt.16.msi.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-ul-phn.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-pl.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\GRAPH_F_COL.HXK.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.OData.Core.NetFX35.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscordaccore_amd64_amd64_7.0.1624.6629.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.Win32.Primitives.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationClient.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0000-1000-0000000FF1CE.xml.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Trial-ppd.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalPipcR_Grace-ul-oob.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsel.xml.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-environment-l1-1-0.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.Design.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win10_RTL.mp4.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-ul-phn.xrm-ms.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\7-Zip\Lang\sr-spc.txt.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Globalization.Calendars.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.Extensions.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.Xml.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\WindowsFormsIntegration.resources.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightDemiItalic.ttf.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash.gif.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.Primitives.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\blacklisted.certs.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jconsole.jar.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AUDIOSEARCHLTS.DLL.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-100.png.tmp	9f33b354d83bbda48dac8e6be7c71080N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Dynamic.Runtime.dll.tmp	9f33b354d83bbda48dac8e6be7c71080N.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	9f33b354d83bbda48dac8e6be7c71080N.exe

C:\Users\Admin\AppData\Local\Temp\9f33b354d83bbda48dac8e6be7c71080N.exe
"C:\Users\Admin\AppData\Local\Temp\9f33b354d83bbda48dac8e6be7c71080N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3240

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
54KB

MD5
7959cbac1715265df5425bbb50af4cf7

SHA1
03c4b5c4ee68a4a9d6b3c564ca1d5332ef97689e

SHA256
013b6809869120191ddf7acb9db6c64632f451d43191eccfe8415d6bef189432

SHA512
6d389187f15f6c89faf8e9e1ea1dce9d26a1f6bc1d0d3122ad8d892fff1247ea2af149c5f504f58f970e9ff9c3a3303120dd1221462fd9f9bb598f0db2050486

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

Filesize
153KB

MD5
6f8842509fd9259b55352254c21a4f78

SHA1
a20ab15bd6ed33998910b5a72c4adf307dce22cb

SHA256
f18dc463b22cb494625a228e43c20df15c83fcc67cddcceb298cf9aba45232e2

SHA512
4aeb101ac40b75f24a02463e350624ec2503c94715ad467f99f8107b62161239dd8c73b882244681774211d9fadf06a6fc5e4393f5127701dbad8fa3f4141294

Download Submit
memory/3240-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3240-922-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download