a6950c674ec5b56f236be04066da3d5fa311fb551b9fc4191b083115f589c43f

Analysis

max time kernel
120s
max time network
120s
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, 19:46

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General

Target

ce784f0f41fb8c21b9b5e01f0022d220N.exe
Size

78KB
MD5

ce784f0f41fb8c21b9b5e01f0022d220
SHA1

8583d80bf1b973c6f3488e43c47571661e364400
SHA256

a6950c674ec5b56f236be04066da3d5fa311fb551b9fc4191b083115f589c43f
SHA512

400b5f936d6562a852a1dc8730a29ca948e567de1d26e75788844cd6c97314a64e09045e533bfbeea0bb6bb3851c77837d5d5baa7fc3b259d5661f813847a89b
SSDEEP

1536:V7Zf/FAxTWoJJ7TzJvTW7JJ7TzJixbDxb2:fny1+AxbDxb2

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4346) 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/4752-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x00090000000235a9-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/4752-820-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Java\jdk-1.8\jre\legal\javafx\jpeg_fx.md.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Trial-ppd.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalDemoR_BypassTrial180-ppd.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-pl.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-ul-phn.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Xml.XmlDocument.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jhat.exe.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sk.pak.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial-Times New Roman.xml.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp3-ppd.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-ul-oob.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Excel.DataWarehouse.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\bg-BG\tipresx.dll.mui.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Linq.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019R_PrepidBypass-ul-oob.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Common Files\microsoft shared\MSInfo\es-ES\msinfo32.exe.mui.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_Subscription-pl.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial2-ppd.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Client.Models.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Design.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\images\cursors\win32_CopyNoDrop32x32.gif.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProR_Trial-pl.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Common Files\System\uk-UA\wab32res.dll.mui.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessDemoR_BypassTrial365-ul-oob.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Input.Manipulations.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jfr\profile.jfc.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\security\trusted.libraries.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.hash.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Threading.Overlapped.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\PresentationFramework.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\StandardVL_MAK-pl.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Microsoft.Win32.Primitives.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\PresentationFramework.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\PresentationUI.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-ppd.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProCO365R_Subscription-pl.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\msquic.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemData.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\WindowsFormsIntegration.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-runtime-l1-1-0.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jre-1.8\bin\jp2ssv.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.DLL.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\cs\System.Windows.Input.Manipulations.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Encoding.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Word2019R_Trial-pl.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Retail-pl.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-ul-phn.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Retail-ppd.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\CERTINTL.DLL.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-core-timezone-l1-1-0.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Input.Manipulations.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-filesystem-l1-1-0.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\npt.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Client\api-ms-win-crt-conio-l1-1-0.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_Retail-ul-phn.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Retail-ul-oob.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\Bibliography\Style\ISO690Nmerical.XSL.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\hr-HR\tipresx.dll.mui.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\fr\System.Windows.Forms.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\it\ReachFramework.resources.dll.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Java\jre-1.8\README.txt.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Excel2019R_OEM_Perp-ul-phn.xrm-ms.tmp	ce784f0f41fb8c21b9b5e01f0022d220N.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	ce784f0f41fb8c21b9b5e01f0022d220N.exe

C:\Users\Admin\AppData\Local\Temp\ce784f0f41fb8c21b9b5e01f0022d220N.exe
"C:\Users\Admin\AppData\Local\Temp\ce784f0f41fb8c21b9b5e01f0022d220N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4752

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4348,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
1⤵
PID:4456

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-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
78KB

MD5
7de19c9b9d2182e640a3d4298e289339

SHA1
04301091ca77fc4e74ed37d8fe50103552cae326

SHA256
0ade44f54cde190ec9980ee5145a3a9135cecf6844f3000d2aa701ba494c3b67

SHA512
9f33d8eba772935ec96758e606fa056f388db19ead823d147a87ebf07645a95b8181d2245ee605971738f91f3b6c4c3f7cd579b99b835ce12ec244a4ca85e96c

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

Filesize
190KB

MD5
8db6d06702d5fb9db80930edf35b8457

SHA1
b9f8d6b9a4c4877532e8f89735273e9a616ce1d3

SHA256
3796d3b0f46c965f052f44fadd4577d75cc367a2cc61cd60f3eaa1bd620fa058

SHA512
021fb9da026790df43e3be4f255c7bf327680f4bc73188f529145cdae9f645b5a5521ad3f244dcdb74737eeaebd79016e82fe64064b020ad95906fe9ecc9d020

Download Submit
memory/4752-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4752-820-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download