5441ccd4cab23ad61bc96e5a763803839a21251d20fe4d89694b706010efd8ee

Analysis

max time kernel
120s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 19:54

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General

Target

55541c3ccdb8e617f2499c4074be60c0N.exe
Size

64KB
MD5

55541c3ccdb8e617f2499c4074be60c0
SHA1

d8ab1d16a34e732e13639508eabfdd102ee021f6
SHA256

5441ccd4cab23ad61bc96e5a763803839a21251d20fe4d89694b706010efd8ee
SHA512

c419cf034b85205d115ae2d7e54023f19b00f89b0c30560f900a026bc51e5c859dcd79562d94e5adc682893a64a3c02c69f8a595a435ba2303c2e9b1e951adea
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjyJJ1EXBwzEXBwdcMcwBcCBcw/tio/tiTBRiCwG7:V7Zf/FAxTWoJJ7TTQoQvTwDwl

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4645) 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/1360-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00080000000234d8-2.dat	upx
behavioral2/files/0x0014000000022913-6.dat	upx
behavioral2/memory/1360-860-0x0000000000400000-0x000000000040B000-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\de\System.Windows.Input.Manipulations.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Xaml.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.EventSource.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebSockets.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Drawing.Common.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\System.Xaml.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\hijrah-config-umalqura.properties.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\glib-lite.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\sunmscapi.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_Grace-ppd.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Text.RegularExpressions.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.IO.Packaging.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-synch-l1-2-0.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\BORDERS\MSART8.BDR.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\Microsoft.Win32.Registry.AccessControl.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jps.exe.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019DemoR_BypassTrial180-ul-oob.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.EventLog.Messages.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OSMUX.OSMUX.x-none.msi.16.x-none.xml.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Common Files\System\ado\msado21.tlb.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Overlapped.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.ProtectedData.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\UIAutomationClientSideProviders.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems64.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Localytics.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\PresentationFramework.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationProvider.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\PresentationFramework.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Gothic.xml.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\ru\msipc.dll.mui.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\vccorlib140.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\en-US\sqlxmlx.rll.mui.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\de.pak.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LivePersonaCard\lpc.win32.bundle.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Common Files\System\it-IT\wab32res.dll.mui.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-file-l2-1-0.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\id.pak.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-TW.pak.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jpeg.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\jsdt.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.office32mui.msi.16.en-us.xml.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\7-Zip\Lang\gu.txt.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.UnmanagedMemoryStream.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\ReachFramework.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\th\msipc.dll.mui.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_Subscription1-pl.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ul-oob.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\FilterModule.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.CompilerServices.VisualC.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.Primitives.resources.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\resources.jar.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-ul-oob.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\7-Zip\Lang\mng2.txt.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.pt-pt.dll.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\en-US\TipRes.dll.mui.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PSRCHLEX.DAT.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ppd.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial4-ppd.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_OEM_Perp-ppd.xrm-ms.tmp	55541c3ccdb8e617f2499c4074be60c0N.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	55541c3ccdb8e617f2499c4074be60c0N.exe

C:\Users\Admin\AppData\Local\Temp\55541c3ccdb8e617f2499c4074be60c0N.exe
"C:\Users\Admin\AppData\Local\Temp\55541c3ccdb8e617f2499c4074be60c0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1360

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
65KB

MD5
d684ef55da92a56958cc428829d515de

SHA1
6ac96d3c913211ce81ab8d6e4153d64c4f88f4b1

SHA256
a00a78ccbbb288c7314e3628d54d2610ebf4261ffec236192809f8e7d45de15c

SHA512
56c0f7c1179f6787fcdf22fe4116e12496c619ed0b0b2b87059c1d2f6fc61f20dddee09c07f396391741d26ed940e8af09054568ea97dbb04acb7ff49f3168aa

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

Filesize
164KB

MD5
d51d217c6e3016d34bf9861a361a4e0f

SHA1
358c43af9d899485266bdd86c11ec11d40abb809

SHA256
e0a8c4f5a00383135aa75c151f67b733577c9fd00558e2c4ad1f215293fba91c

SHA512
fab0445c4ca291513621bebcaa9b746f7f88c224cf6f08520d0f3b75c5497ce0c9c246440e35137492cdec348818c74079c8676e7d992f78a2f5f56f1763a5b2

Download Submit
memory/1360-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1360-860-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download