45a007b67413484340ed8624b66b71e33480fef4f411dd83b137898923f3892e

Analysis

max time kernel
120s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 06:17

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General

Target

3931ab173fd83144e591fe8767baa710N.exe
Size

88KB
MD5

3931ab173fd83144e591fe8767baa710
SHA1

6ea23fe9aa7eaf6cdca175d740001f7ae5b9d60e
SHA256

45a007b67413484340ed8624b66b71e33480fef4f411dd83b137898923f3892e
SHA512

8d98a4fa0c89379f3d06a6268ae1276c61c8d05bc17945200e2a09c443dfb55aff71d23324194811599576188bc90f64179d89716e01fdc767bbf14deda68aca
SSDEEP

1536:V7Zf/FAxTWoJJZENTNyoKIKMTTW7JJZENTNyoKIKM4:fny1tE5KIK7tE5KIKv

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4244) 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/2648-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023444-2.dat	upx
behavioral2/files/0x0014000000022912-6.dat	upx
behavioral2/memory/2648-770-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\UIAutomationProvider.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_KMS_Client-ul-oob.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\as80.xsl.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\7-Zip\Lang\ja.txt.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.IsolatedStorage.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.InteropServices.JavaScript.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Memory.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ml.pak.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Common Files\System\ado\msadomd.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-heap-l1-1-0.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ppd.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_OEM_Perp-ul-phn.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-environment-l1-1-0.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.Win32.Primitives.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Input.Manipulations.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Numerics.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\UIAutomationClient.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Presentation.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\javafx_font.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\accessibility.properties.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jre-1.8\lib\fonts\LucidaTypewriterRegular.ttf.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremDemoR_BypassTrial365-ppd.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_KMS_Client-ul.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\7-Zip\Lang\sk.txt.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-runtime-l1-1-0.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.HttpUtility.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\ReachFramework.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Shims.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jre-1.8\bin\plugin2\npjp2.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00A1-0409-1000-0000000FF1CE.xml.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Retail-ul-oob.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Windows.Forms.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\System.Xaml.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\pkcs11cryptotoken.md.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\dnsns.jar.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Grace-ppd.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Grace-ul-oob.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\MSOUC_F_COL.HXK.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsymt.ttf.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.vi-vn.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Common Files\System\ado\msado27.tlb.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\System.Windows.Controls.Ribbon.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-conio-l1-1-0.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationCore.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Internet Explorer\de-DE\iexplore.exe.mui.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\awt.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_OEM_Perp-pl.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-pl.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.Concurrent.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.Linq.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_KMS_Client-ppd.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-processenvironment-l1-1-0.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.HttpListener.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\UIAutomationClientSideProviders.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Java\jre-1.8\bin\vcruntime140.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail2-ppd.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Trial-ul-oob.xrm-ms.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\ReachFramework.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\PresentationCore.resources.dll.tmp	3931ab173fd83144e591fe8767baa710N.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	3931ab173fd83144e591fe8767baa710N.exe

C:\Users\Admin\AppData\Local\Temp\3931ab173fd83144e591fe8767baa710N.exe
"C:\Users\Admin\AppData\Local\Temp\3931ab173fd83144e591fe8767baa710N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2648

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-1-5-21-786284298-625481688-3210388970-1000\desktop.ini.tmp

Filesize
89KB

MD5
f4b125633c76cb936a820d13baf48285

SHA1
34aabb7680ca224a49254f7c3b38fb9eac2f0bad

SHA256
c9b514fc7fc3c894eff6b2ba29854429f4f6491cbd2db7586a0a82a9c01fa7b7

SHA512
0e7ebf77cd410e3d4617f6c0de6de18f13ef2e6f75e9ed60fafa075badbd806acc5c5468e2f6fe0f3a4d17eedb47997d74a30c1afae13954b0cc311b6f91fd98

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

Filesize
188KB

MD5
a40524f86255b77cd9d4774674357f98

SHA1
31bb00723dc84d33146d80007afc235dac52d50b

SHA256
5c04d579dfcf3bf4435cdcfb1d0a27d4284dbaebcd6823fecda4f77e703c5918

SHA512
ae191175fefe046e1a69629e9259533b1858686aab2600dfbbb6101c55281fab34a470da433372146f74b1dba8631bb025e037e0670e16825beec12dd09db173

Download Submit
memory/2648-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-770-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download