699be4bf4b1a6f74ceefb3477304b7c1bf66d63368fc947bf50efb94489bcaf2

Analysis

max time kernel
120s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 22:58

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General

Target

c2439060d88c9692eead16f5cf23f1d0N.exe
Size

68KB
MD5

c2439060d88c9692eead16f5cf23f1d0
SHA1

0b5074b41e9d9fe66f6a67a7ea90f3dec7f5fa58
SHA256

699be4bf4b1a6f74ceefb3477304b7c1bf66d63368fc947bf50efb94489bcaf2
SHA512

d1cf0912f5d2224a893ab259b962c69792c6506a8f21657f352c961f554a65e6d343a1b9d6d92fb6978c9679cd5b6e4e1f6713350924f22a29237cbd3da11da7
SSDEEP

1536:V7Zf/FAxTWoJJTU3UytJfOKI+h/YI+h/BhvUUvUa:fny1sI+h/YI+h/BhsUsa

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4499) 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/3392-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023424-2.dat	upx
behavioral2/files/0x000800000002347e-6.dat	upx
behavioral2/memory/3392-800-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InputPersonalization.exe.mui.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\.version.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Windows.Extensions.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\j2pkcs11.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.zh-cn.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ea-sym.xml.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\mscorlib.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\UIAutomationProvider.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\sunjce_provider.jar.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial2-ul-oob.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationCore.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp-ul-phn.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProVL_KMS_Client-ppd.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\WordVL_KMS_Client-ul-oob.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\fr\PresentationFramework.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\PresentationCore.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\Microsoft.WindowsDesktop.App.runtimeconfig.json.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\policy\unlimited\local_policy.jar.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems32.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.contrast-black_scale-180.png.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Common Files\System\ado\msado20.tlb.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msdasqlr.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-utility-l1-1-0.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OSMUX.OSMUX.x-none.msi.16.x-none.xml.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial3-ppd.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\offsyml.ttf.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.reportviewer.common.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.id-id.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019R_Grace-ul-oob.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessVL_MAK-pl.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\jvm.lib.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Slice.thmx.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\PresentationCore.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\zh-TW.pak.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\asm.md.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_Subscription-pl.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\UIAutomationClientSideProviders.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\nio.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\mscorlib.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Reflection.Extensions.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_OEM_Perp-pl.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Office.Interop.Outlook.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.ComponentModel.Annotations.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\Microsoft.VisualBasic.Forms.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pt-BR\WindowsBase.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\he.pak.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\dom.md.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Trial-pl.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStd2019R_OEM_Perp-ppd.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\nb-NO\tipresx.dll.mui.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Security.Cryptography.X509Certificates.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Resources.Extensions.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\ShapeCollector.exe.mui.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jli.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ExcelR_OEM_Perp-pl.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\UIAutomationProvider.resources.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework-SystemXml.dll.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\jpeg_fx.md.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessDemoR_BypassTrial365-ppd.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_Trial-pl.xrm-ms.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ONENOTE_F_COL.HXK.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\ISO690.XSL.tmp	c2439060d88c9692eead16f5cf23f1d0N.exe
File created	C:\Program Files\7-Zip\Lang\io.txt.tmp	c2439060d88c9692eead16f5cf23f1d0N.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	c2439060d88c9692eead16f5cf23f1d0N.exe

C:\Users\Admin\AppData\Local\Temp\c2439060d88c9692eead16f5cf23f1d0N.exe
"C:\Users\Admin\AppData\Local\Temp\c2439060d88c9692eead16f5cf23f1d0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3392

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-1-5-21-1302416131-1437503476-2806442725-1000\desktop.ini.tmp

Filesize
69KB

MD5
cbf2f61594973aac4a89d854c88b5438

SHA1
c4796d791fd3947fb64515f0e46df91b40bf9626

SHA256
a39048e1a16244a37a82bf6a0842787efa93263a50bda2bd45ba661a2a45f726

SHA512
38139916c3383347868136f6bd8b83bf94bf39855ea354aad54622e294817a1c5bbea52b2c04541945bba61a162575c9041825a0133bb409efec8d9a44dc3fe7

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

Filesize
168KB

MD5
831b7fe56df6d5c5d498868c3ace54f1

SHA1
50145348af637c01798be128ec87db785e549961

SHA256
42911feaeacf903665d54d84e438a9d056639ac4b5f27e6003ae905ad41d13e8

SHA512
95fac9f7fc809600e77618d26c9ff046559abc5578e7c4b0b5aaa125a80f7ab6138e9bd02eb30eb52acda5b6f77e4162ff2295c3e65ff9eb352f2fd303ea7300

Download Submit
memory/3392-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3392-800-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download