ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0

Analysis

max time kernel
150s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 04:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
Size

37KB
MD5

36f5fe9bfe7e7032efe57e08a0b7637f
SHA1

b5241e7bef7ee5c1d9a8cb387b3b22bc16729ec6
SHA256

ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0
SHA512

1872e1c53558bead122a43a0e40be3c88937c42973d983fb8b38d09ca78e43b7b45ede4194ce639547a542f915df3049ebc970ae70edd4ebef33bf1093666ace
SSDEEP

768:kBT37CPKKdJJ1EXBwzEXBwdcMcI9NCQy5vhgCy5vhgw3N:CTW7JJ7Tugtgw3N

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (5279) 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/2040-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x0009000000023482-2.dat	upx
behavioral2/files/0x000400000002291b-6.dat	upx
behavioral2/memory/2040-1029-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jre-1.8\lib\deploy\[email protected]	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jre-1.8\lib\jvm.hprof.txt.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ul-oob.xrm-ms.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-synch-l1-2-0.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Web.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\PresentationUI.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jre-1.8\lib\meta-index.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000027\assets\Icons\[email protected]	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.es-es.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Reflection.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_HK.properties.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\7-Zip\Lang\va.txt.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_OEM_Perp-ul-phn.xrm-ms.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Custom.propdesc.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jre-1.8\bin\javaws.exe.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardMSDNR_Retail-ppd.xrm-ms.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WordNaiveBayesCommandRanker.txt.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\OneNote\SendToOneNoteFilter.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\UIAutomationClient.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l2-1-0.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jdk-1.8\legal\javafx\public_suffix.md.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusiness2019VL_MAK_AE-ul-oob.xrm-ms.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Microsoft.Win32.Registry.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Windows.Forms.Primitives.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Xaml.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\splashscreen.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial-pl.xrm-ms.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\7-Zip\Lang\cy.txt.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.hash.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\zh-CN\tipresx.dll.mui.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-pl.xrm-ms.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Storage.XmlSerializers.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\eu\msipc.dll.mui.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\EQUATION\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jdb.exe.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\VVIEWER.DLL.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Templates\1033\BillingStatement.xltx.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\PresentationUI.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\Microsoft.VisualBasic.Forms.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\SETLANG_F_COL.HXK.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\PersonaSpy\notice.txt.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\1033\ADO210.CHM.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-dayi.xml.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Serialization.Xml.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\msvcp140_1.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\CERTINTL.DLL.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\hu\msipc.dll.mui.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ODBC Drivers\redshift.ini.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsjpn.xml.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Writer.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\UIAutomationProvider.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.DLL.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\UIAutomationClient.resources.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-0018-0409-1000-0000000FF1CE.xml.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-core-timezone-l1-1-0.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\GrantLock.3gp.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\jcup.md.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-utility-l1-1-0.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Exchange.WebServices.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_kor.xml.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Private.CoreLib.dll.tmp	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.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	ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe

C:\Users\Admin\AppData\Local\Temp\ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe
"C:\Users\Admin\AppData\Local\Temp\ec6bac424b6f881860688884e4478216536f1720226f91f5f8a60403239759f0.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2040

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

Loading Replay Monitor...

Downloads

C:\$Recycle.Bin\S-1-5-21-1302416131-1437503476-2806442725-1000\desktop.ini.tmp

Filesize
37KB

MD5
f7319e2dec0ed843b8f52b9ffe8bb6b1

SHA1
2f210509dcc3c309d3a9fdeb4dbc049752c8d6d4

SHA256
34fd5a80a7a4331fa431cef26a269e82842d5067ae91d6b8cc0726b7bec429a4

SHA512
8f70ec5ad55c77a0c0507cdd30ea8720c8a53eb9ec5b20b617c7a17cb864ac0b17e77d30447de52047ac4e3f887adf4dc35c99af044898422a995ae983e96d6b

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

Filesize
136KB

MD5
ac080b13c027c807de76121b242f9a06

SHA1
7cbd44e4257db4beb1155c740828643e72941e3b

SHA256
48a801cb797d3792a977b61d312a3098d617d589a89fc3b2940264e6e588d9d0

SHA512
7dc54dda31192bc8b21c9dfbb93380e8cb72038ca6407dad9765ac528ac003c407406a3d37601c369bee45327c378fe1774d4bfab6dd2a53bb0f5afa33429335

Download Submit
memory/2040-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2040-1029-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download