07551474a3d5deb5c593e8eb2fa36b69f919e22c43fe7d464c127e30ccf01725

Analysis

max time kernel
120s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 20:08

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General

Target

4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
Size

57KB
MD5

4e02ec3338e9f3ce79d9bf0bf7fbfb40
SHA1

5096d259d8ed2dc4c1b03e5b4285dee26d7f6f4f
SHA256

07551474a3d5deb5c593e8eb2fa36b69f919e22c43fe7d464c127e30ccf01725
SHA512

c06e86e54f412952eb65d873acb78fc12e1be47bd7695b907a7fd0cffa61d881d7e84f548cad52bda2750a6506b4077843c04778d69e1a024982561ded95d7d8
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2r/:V7Zf/FAxTWdiE

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (2939) 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/1460-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000233f5-2.dat	upx
behavioral2/files/0x000600000001e5db-6.dat	upx
behavioral2/memory/1460-1592-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\clrgc.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\Microsoft.VisualBasic.Forms.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\fre\StartMenu_Win8_RTL.mp4.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.Http.Json.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.XPath.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Tasks.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Accessibility.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsdan.xml.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\tipresx.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\System\Ole DB\sqloledb.rll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\pkcs11wrapper.md.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\UIAutomationProvider.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_ko.properties.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-xstate-l2-1-0.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-pl.xrm-ms.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\Microsoft.NETCore.App.runtimeconfig.json.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\ReachFramework.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Security.Cryptography.Xml.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\UIAutomationProvider.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\mesa3d.md.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-root.xrm-ms.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcor.dll.mui.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Controls.Ribbon.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemDrawing.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\microsoft shared\VC\msdia90.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\ReachFramework.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\Microsoft.WindowsDesktop.App.deps.json.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-heap-l1-1-0.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hu-hu.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationClientSideProviders.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\relaxngdatatype.md.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Aspect.xml.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\System.Xaml.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ul-phn.xrm-ms.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hi-in.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.VisualBasic.Core.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Handles.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Emit.Lightweight.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\PresentationCore.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.InteropServices.JavaScript.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\javaws.jar.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jre-1.8\bin\awt.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\splash.gif.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msadcor.dll.mui.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Client\vcruntime140.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Retail-ul-phn.xrm-ms.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.Parallel.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.ThreadPool.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\UIAutomationClient.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019VL_MAK_AE-ppd.xrm-ms.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.DataContractSerialization.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\UIAutomationTypes.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.dcfmui.msi.16.en-us.xml.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Windows.Input.Manipulations.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationClient.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.Annotations.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\Microsoft.VisualBasic.Forms.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\PresentationUI.resources.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\Locales\ml.pak.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Internet Explorer\iexplore.exe.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-localization-l1-2-0.dll.tmp	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.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	4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe

C:\Users\Admin\AppData\Local\Temp\4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe
"C:\Users\Admin\AppData\Local\Temp\4e02ec3338e9f3ce79d9bf0bf7fbfb40N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1460

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-1-5-21-1705699165-553239100-4129523827-1000\desktop.ini.tmp

Filesize
57KB

MD5
ec01d68b942d9fb18778dd4c15d65178

SHA1
2fe788de44c556df04b5cfb67d2cbe2264e61d40

SHA256
90d4cdb3a8979ff964cff133a013769185b2990f2da7f4aac2e8a394d12e2b84

SHA512
d2a0b18beaef210b8a0a841cef1681b42ab90e5fb340c29b6756165ef04a9b07ae5075957084ce4f68107597b863f18962ab412fbfb88f539715cc19fb35a540

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

Filesize
156KB

MD5
2e7ff4154bcd67f628287c84d13fbd7c

SHA1
7b0de25347c03e1c5c3cf70bd26979b4e846111c

SHA256
e5f8ca323665c71267d021807faf245b7620e52410890ce0ff02ce61d2e35904

SHA512
35721648a1efb0d2ed20d5e303f09a67bfc145e2109beb8b90dfd7178cb2b9403c3b6cf81f57c79b8e0fa330fca7ed79de2fa640ff1405b9dbe3b39ceac065c3

Download Submit
memory/1460-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1460-1592-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download