85b0588663feaac2b26f73bdebfc966107124d79b52925a6576bc658a7587fa0

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 13:32

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General

Target

82ef7736f9071f8877833fb9f74097c0N.exe
Size

70KB
MD5

82ef7736f9071f8877833fb9f74097c0
SHA1

c644ab4064132ca484b041d0ba09ad7114ee4a88
SHA256

85b0588663feaac2b26f73bdebfc966107124d79b52925a6576bc658a7587fa0
SHA512

3bd08d0cc71c517017e2424856fa696c42c060729a87b707f82b1d379012514e9a415c6ad2b190637cf0ec529142c256023bb729f522990b21d187cd1f5fc52b
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rC:V7Zf/FAxTWtnMdyGdy4AnAP4W60F5

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4647) 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/1508-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023426-2.dat	upx
behavioral2/files/0x0004000000022933-6.dat	upx
behavioral2/memory/1508-866-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Pipes.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages.properties.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\jaccess.jar.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest2-ppd.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\PresentationFramework.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-CN.pak.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pkcs11.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\blacklist.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp3-ppd.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial4-pl.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.DataContractSerialization.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\Microsoft.VisualBasic.Forms.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Security.Cryptography.ProtectedData.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPointVL_KMS_Client-ul.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\insert.xml.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Input.Manipulations.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jre-1.8\bin\j2pcsc.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_Grace-ppd.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusVL_MAK-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Retail-ppd.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.XLHost.Modeler.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Data.Common.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Xml.XPath.XDocument.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Office Theme.thmx.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusDemoR_BypassTrial180-ppd.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-140.png.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.scale-100.png.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\pt\msipc.dll.mui.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.Extensions.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\tr\Microsoft.VisualBasic.Forms.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Retail-ul-phn.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-180.png.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\sl-SI\tipresx.dll.mui.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Core.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Resources.ResourceManager.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\calendars.properties.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_es.properties.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\sql70.xsl.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\System.Windows.Forms.Primitives.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jce.jar.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Red Violet.xml.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProMSDNR_Retail-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\es\msipc.dll.mui.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-multibyte-l1-1-0.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Common Files\System\ja-JP\wab32res.dll.mui.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Extensions.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\7-Zip\Lang\eo.txt.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\System.Windows.Forms.Design.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Grace-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.scale-100.png.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Windows.Controls.Ribbon.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Windows.Forms.Primitives.resources.dll.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\fonts\LucidaBrightItalic.ttf.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelVL_MAK-ul-oob.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectProR_Retail-ul-phn.xrm-ms.tmp	82ef7736f9071f8877833fb9f74097c0N.exe
File created	C:\Program Files\7-Zip\Lang\va.txt.tmp	82ef7736f9071f8877833fb9f74097c0N.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	82ef7736f9071f8877833fb9f74097c0N.exe

C:\Users\Admin\AppData\Local\Temp\82ef7736f9071f8877833fb9f74097c0N.exe
"C:\Users\Admin\AppData\Local\Temp\82ef7736f9071f8877833fb9f74097c0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1508

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
70KB

MD5
5c09befe05b8b9b81ecf593073e3b8eb

SHA1
0190dc6408530668b7ca530c64569b4aa3098393

SHA256
197ffec16fed6778896365edd869ade3b4dafe0fac36297558c9b15d3e9fcced

SHA512
304ac15fca0b401742b0b1857daf8c445638006ec20f6224538582a3983fd44ad538a06bf5701c696c0fbe652b581710a0f85850e788ff5d6a728d04f1ec6855

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

Filesize
169KB

MD5
099f16d55aa4c9c32d08235f178dbfc9

SHA1
6f1f18ce0d4768aac691dcc9d70a6230d6d1f7f5

SHA256
b9aa84d5e93588864a9582bd8f9661c2f0f3ca42ad8d001a85c8c9aa8d343862

SHA512
e751451b2619c142ad1f212af530abbd0424ce6508a7f1bc944c6a83a5d2b785aacf5c4438db9c0f15501b7b369fefe4f7955b1645406a74e6d11624082efb78

Download Submit
memory/1508-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1508-866-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download