370304f27b0056c3a83d1958a302ec2a9fa7ae882366384d11541b891e015b8d

Analysis

max time kernel
120s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2024 08:03

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General

Target

59521a58510796162b59b241f12a74a0N.exe
Size

24KB
MD5

59521a58510796162b59b241f12a74a0
SHA1

9c6ac8ea0915c4eedb6e5a6e98282a659b46b59d
SHA256

370304f27b0056c3a83d1958a302ec2a9fa7ae882366384d11541b891e015b8d
SHA512

04fdf028786eec1c8d54c8dbc5990a0e6681b5c7d9f02da185cb4d2642e476b697e9abc68e8e8ac8fbfcc38969a0a33485f17dd1fce0d435adf32eae10510d18
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9tobWO8iJfobWO8iJU:CTW7JJ7TUE8

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4679) 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/3624-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023401-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/3624-938-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\linessimple.dotx.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-100.png.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l2-1-0.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jar.exe.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest1-ul-oob.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Office.Interop.Outlook.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Common Files\System\ado\fr-FR\msader15.dll.mui.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\System.Windows.Forms.Primitives.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ospintl.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MEDIA\WIND.WAV.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\UIAutomationClient.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\fa.pak.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdO365R_SubTrial-ppd.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ClientPreview_eula.txt.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Power Map Excel Add-in\POWERMAPCLASSIFICATION.DLL.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-private-l1-1-0.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sl.pak.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PersonalDemoR_BypassTrial180-ul-oob.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Trial-ppd.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ul-oob.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\7-Zip\Lang\eo.txt.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\PresentationCore.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hant\WindowsFormsIntegration.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\UIAutomationClient.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\PresentationUI.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\C2R32.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Retail-ul-phn.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-ul-oob.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.Primitives.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Xaml.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ReachFramework.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\ca.pak.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\DataStreamerLibrary.dll.config.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ul-oob.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcor.dll.mui.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-utility-l1-1-0.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Glow Edge.eftx.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\SIST02.XSL.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Collections.Specialized.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.Primitives.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_Subscription4-pl.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-namedpipe-l1-1-0.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-pl.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\LICENSE.txt.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Diagnostics.Contracts.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationFramework.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ja\System.Windows.Forms.Primitives.resources.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.IO.Packaging.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_LinkNoDrop32x32.gif.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Trial2-ppd.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Collections.Specialized.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.IO.Compression.Brotli.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Internet Explorer\it-IT\ieinstal.exe.mui.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_MAK-pl.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Common.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\it-IT\tipresx.dll.mui.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.rll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeServiceBypassR_PrepidBypass-ul-oob.xrm-ms.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\host\fxr\6.0.27\hostfxr.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clrjit.dll.tmp	59521a58510796162b59b241f12a74a0N.exe
File created	C:\Program Files\Internet Explorer\ja-JP\iexplore.exe.mui.tmp	59521a58510796162b59b241f12a74a0N.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	59521a58510796162b59b241f12a74a0N.exe

C:\Users\Admin\AppData\Local\Temp\59521a58510796162b59b241f12a74a0N.exe
"C:\Users\Admin\AppData\Local\Temp\59521a58510796162b59b241f12a74a0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3624

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-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

Filesize
24KB

MD5
a1287630bc2650303fe3e8726e947c1d

SHA1
e510e661d3234a85952a57835177df043aceda3a

SHA256
042f2c979a04937e77567db552e75605056f0344961273ad77cf8ffd2a292ef2

SHA512
0240359468e63579b26c1d19fe750fd33f51d73295e5024837def13f6f4e6177cce67bf7307add510349acc4fba32983e2ac8b0072b515e96634651c75d2ce69

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

Filesize
123KB

MD5
5ea4f7c333a393c095d7330b283f5b1b

SHA1
f854149b594613ea55d7bd43db6e49fee186881c

SHA256
352c3a2e26bde3518fbc8d1d734cf7c9f96e7d7a6cefa047a88d943c7e78c2c9

SHA512
6a723c45cd6577f7a2d987d8e20e4d22025ee86b534cd748544d1ca300055bd3b4d0fdd66bb4a98f1d27f7bf678ebd9a5bd71dd719468fe3af2e23c38aeba2da

Download Submit
memory/3624-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3624-938-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download