58b64a29c7e31d1d17551c36ace7e5ac062a1e3facb37d4d500eba8d4b3582a9

General

Target

9945e185b2865261ba9d3e83d22396b0N.exe
Size

120KB
MD5

9945e185b2865261ba9d3e83d22396b0
SHA1

487ec5def5bb041074518a2dc641766b345b577c
SHA256

58b64a29c7e31d1d17551c36ace7e5ac062a1e3facb37d4d500eba8d4b3582a9
SHA512

8e5449e118020ccedd6381be64e8f072f7998c47fffa1c8303bfa385f78b9904e4fa611d7270b779d0ce3a8f9adf2301eaab3af30835c9eb65adaae1824066bb
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8asUsK8/8HTWn1++PJHJXA/OsIZfzc3/D:fnyiQSohsUsxkDQSohsUsxkE

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (1893) 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

Processes:

resource	yara_rule
behavioral2/memory/2312-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
C:\$Recycle.Bin\S-1-5-21-464762018-485119342-1613148473-1000\desktop.ini.tmp	upx
C:\Program Files\7-Zip\7-zip.dll.tmp	upx
behavioral2/memory/2312-1402-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

Processes:

9945e185b2865261ba9d3e83d22396b0N.exe

description	ioc	process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.Win32.Primitives.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Royale.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\PresentationFramework.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-convert-l1-1-0.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\UIAutomationTypes.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\WindowsBase.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Luna.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp140.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\de-DE\msinfo32.exe.mui.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.Encoding.CodePages.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\System.Windows.Forms.Primitives.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Common.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationProvider.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\System.Xaml.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\PresentationCore.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Numerics.Vectors.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Formats.Tar.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\7-Zip\7zFM.exe.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-time-l1-1-0.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Numerics.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.IsolatedStorage.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\VSTO\vstoee.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.Client.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Xaml.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.WebSockets.Client.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\.version.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Aero.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationClientSideProviders.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationTypes.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msdaremr.dll.mui.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.Emit.ILGeneration.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Aero.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\PresentationUI.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.WindowsDesktop.App.deps.json.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\UIAutomationClientSideProviders.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.NameResolution.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Process.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Controls.Ribbon.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\UIAutomationClientSideProviders.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\resources.pak.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\System.Windows.Forms.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Design.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Cryptography.Xml.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\zh-CN.pak.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\de-DE\InkObj.dll.mui.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\PresentationCore.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\Microsoft.VisualBasic.Forms.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\Microsoft.VisualBasic.Forms.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.Royale.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\System\fr-FR\wab32res.dll.mui.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.FileSystem.Watcher.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\UIAutomationClient.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\mscorlib.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Forms.Primitives.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Input.Manipulations.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\offreg.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.ComponentModel.Primitives.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationProvider.resources.dll.tmp	9945e185b2865261ba9d3e83d22396b0N.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

Processes:

9945e185b2865261ba9d3e83d22396b0N.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 9945e185b2865261ba9d3e83d22396b0N.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9945e185b2865261ba9d3e83d22396b0N.exe

C:\Users\Admin\AppData\Local\Temp\9945e185b2865261ba9d3e83d22396b0N.exe
"C:\Users\Admin\AppData\Local\Temp\9945e185b2865261ba9d3e83d22396b0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2312

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-464762018-485119342-1613148473-1000\desktop.ini.tmp
Filesize
121KB

MD5
f0051ce9d46328976f6a79ac3f57c408

SHA1
f843999beacb35e27b2a8f1368ac9a74df2745a1

SHA256
c90b096d84f9a792a32da35cdacd05e7bfbf7e5ac8eec93588326d40d5ec938d

SHA512
31b85c2443bdec38052b99ed9d7dfdac3821f62c23355bfff8a4c4e4daae7b5140e281201da89222300fc5bc24d378fc9bbb81f3c1fb2cec4f1163290f71f327

Download Submit
C:\Program Files\7-Zip\7-zip.dll.tmp
Filesize
219KB

MD5
b4f75bbcefbea980c8afc3900875c6f1

SHA1
94491a78a4f47b7ddc74b21cffe1641db830d505

SHA256
603700019f675c9655fa091456fea80bd75d2ee69c67f9d432977c9c82e02e73

SHA512
0a98bb17bfb2343579d545384d682157e9f7bab35e5010cb951139f53d7045b95717557a58130249c685b5f6b10480d0273fa1a22e1009628eaed32fa68033a6

Download Submit
memory/2312-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2312-1402-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing