3f592f5fb10f63081efcb866540f9f1e9d5db254f77f7b8c03fecf0f36edafaf

Analysis

max time kernel
120s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 18:22

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General

Target

16dff8bc7961e4b6a64cec93fcb80540N.exe
Size

33KB
MD5

16dff8bc7961e4b6a64cec93fcb80540
SHA1

87a5c36bf285ed1bf30a3533256572bc56239e06
SHA256

3f592f5fb10f63081efcb866540f9f1e9d5db254f77f7b8c03fecf0f36edafaf
SHA512

5247296bb9b08d3fd2fac17dd57a4eb786a74152b6ffc6766a729900af089149c56c30b334c38b464c52eaa38aae7ca9c3ed38c117d472c3af0ad2063d472146
SSDEEP

384:QOlIBXDaU7CPKK0TIhfJJPbUSzsOVCjT+:kBT37CPKKdJJTUNOQT+

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4649) 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/2020-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x00090000000233d1-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/2020-855-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Controls.Ribbon.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\CLICK.WAV.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Forms.Design.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jre-1.8\bin\pack200.exe.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\WinWordLogo.contrast-black_scale-180.png.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\TipRes.dll.mui.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msadcor.dll.mui.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Security.Cryptography.X509Certificates.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Drawing.Design.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.Primitives.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTrial-pl.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest1-pl.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Diagnostics.StackTrace.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.Design.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\nashorn.jar.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jre-1.8\bin\dt_socket.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ppd.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.WebClient.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\UIAutomationClient.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\VisualElements\Logo.png.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordVL_KMS_Client-ul-oob.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Internet Explorer\en-US\hmmapi.dll.mui.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Internet Explorer\es-ES\ieinstal.exe.mui.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\INTLDATE.DLL.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\rtscom.dll.mui.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Intrinsics.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XPath.XDocument.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jre-1.8\bin\mlib_image.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdVL_KMS_Client-ul.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jre-1.8\lib\content-types.properties.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Trial-ul-oob.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdCO365R_Subscription-pl.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\ReachFramework.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\cacerts.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jre-1.8\bin\lcms.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\dom.md.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tiptsf.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Common Files\System\ado\de-DE\msader15.dll.mui.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\public_suffix.md.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\ecc.md.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\word2013.dotx.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_kor.xml.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Extensions.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Diagnostics.EventLog.Messages.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Permissions.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jhat.exe.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GRAPH.ICO.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\WindowsFormsIntegration.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\WindowsBase.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\resource.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\w2k_lsa_auth.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-ul-oob.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdR_Grace-ppd.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Data.Recommendation.Client.Picasso.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\PresentationUI.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\ReachFramework.resources.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\awt.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\cryptix.md.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019VL_KMS_Client_AE-ul.xrm-ms.tmp	16dff8bc7961e4b6a64cec93fcb80540N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\api-ms-win-core-localization-l1-2-0.dll.tmp	16dff8bc7961e4b6a64cec93fcb80540N.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	16dff8bc7961e4b6a64cec93fcb80540N.exe

C:\Users\Admin\AppData\Local\Temp\16dff8bc7961e4b6a64cec93fcb80540N.exe
"C:\Users\Admin\AppData\Local\Temp\16dff8bc7961e4b6a64cec93fcb80540N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2020

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
34KB

MD5
f2767e91f97cce54ff883c85f5b1931e

SHA1
16372231fdb1a75673ba93266e70d8ae06cbe7d1

SHA256
872b04d94d65b27f526efb66b59b6fb6c6c96d34feb39525798877b3d38d052a

SHA512
a347711aeb25bd813fbfb8aee326ce07cabefe55a30f1bf43fd95e416c1efd4b241e8a427ae49c09f1db3375499e773857490ed6cc0f3128bf801aedc139dedf

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

Filesize
132KB

MD5
e170b1405c334944b40d4268c5fd5f65

SHA1
2007ad3bc293a0ed58b797a67046ab4f6ebe1b6d

SHA256
87a9f768cdf8d8a329cdaa0f7ced83d49853fddd87a13fa8350fa45c85eda5bd

SHA512
fe7d4f402aea7e2982b47f9aacb079e385619bf9120af8a294107a234f74f1707389c5823d106adcfebeafd45609128a2477288c9c89906f0a7dcbe370dd2695

Download Submit
memory/2020-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2020-855-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download