16a8e2d6d3342cedeeeb8068773318eb15e44c2fe6074a0d95b681edbaf66cdd

Analysis

max time kernel
120s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 13:48

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General

Target

af3667169c3cf6d37d716e0d45608160N.exe
Size

69KB
MD5

af3667169c3cf6d37d716e0d45608160
SHA1

5ebf758857065ffb5b3cec8e4f138619fa20bf72
SHA256

16a8e2d6d3342cedeeeb8068773318eb15e44c2fe6074a0d95b681edbaf66cdd
SHA512

57d812d497ec1413ac0baffcfe5bad2e8d594bf652d8abfc6c547514f0f91e547803b1dd169d4e7cccbbcd5345b15ec91b09ad78f1c2f68c51635e50f7520bc7
SSDEEP

1536:a7ZyqaFAxTWH1++PJHJXA/OsIZfzc3/Q8Q8/8fCp:enaypQSoske

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4635) 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/5000-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002339d-2.dat	upx
behavioral2/files/0x0014000000022936-6.dat	upx
behavioral2/memory/5000-1948-0x0000000000400000-0x000000000040B000-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.Reflection.Primitives.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\PresentationCore.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.scale-80.png.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\UIAutomationProvider.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\ext\cldrdata.jar.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogo.scale-100.png.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\OFFICE.DLL.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\GFX.DLL.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Linq.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\System.Xaml.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\fxplugins.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Glossy.eftx.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\en\LocalizedStrings.xml.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsel.xml.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Common Files\System\msadc\fr-FR\msadcer.dll.mui.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\WindowsBase.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Drawing.Primitives.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Garamond-TrebuchetMs.xml.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.Proof.Culture.msi.16.en-us.xml.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Java\jre-1.8\bin\api-ms-win-crt-time-l1-1-0.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\policy\limited\local_policy.jar.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.SqlServer.Types.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WacLangPack2019Eula.txt.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\hostpolicy.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\PresentationCore.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessDemoR_BypassTrial365-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusR_SubTrial3-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\TellMeWord.nrr.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Grace-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\DataStreamerLibrary.dll.config.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\offreg.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Native.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\UIAutomationClient.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-00E1-0000-1000-0000000FF1CE.xml.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\UIAutomationTypes.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Subscription-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\ExcelLogoSmall.scale-100.png.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-processthreads-l1-1-1.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\netstandard.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019XC2RVL_MAKC2R-ul-oob.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp-ul-phn.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\calendars.properties.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_MAK_AE-ul-oob.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Data.SapClient.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\7-Zip\Lang\eo.txt.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\uk-UA\ShapeCollector.exe.mui.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Net.WebClient.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\PresentationUI.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\serialver.exe.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogoSmall.contrast-black_scale-100.png.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\System.Windows.Forms.Primitives.resources.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-ul-oob.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdO365R_Subscription-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSIPC\et\msipc.dll.mui.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\host\fxr\8.0.2\hostfxr.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Data.Common.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Runtime.Intrinsics.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial2-ppd.xrm-ms.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\Microsoft.VisualStudio.OLE.Interop.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.AnalysisServices.Excel.Common.FrontEnd.dll.tmp	af3667169c3cf6d37d716e0d45608160N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE.tmp	af3667169c3cf6d37d716e0d45608160N.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	af3667169c3cf6d37d716e0d45608160N.exe

C:\Users\Admin\AppData\Local\Temp\af3667169c3cf6d37d716e0d45608160N.exe
"C:\Users\Admin\AppData\Local\Temp\af3667169c3cf6d37d716e0d45608160N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5000

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-1-5-21-2412658365-3084825385-3340777666-1000\desktop.ini.tmp

Filesize
69KB

MD5
087dd937f41f2ddcec447be64757785c

SHA1
0b901b06acab67eec0f7a5a48cfec1a2fb3df09c

SHA256
7560410498c8e9b8d62620f4f9383c3e15b6b0e3448d42deb166cdf0fab8c4a9

SHA512
b983ffadcfd54933c9cae879f7cb4ecbaec6c51f1c01772b7fbfdaefcdb3f3c8650a2f73f5466b1a50090fea36a61f6ab36c92d3821d412bfb9df0412ce57509

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

Filesize
168KB

MD5
38dfc15d345177d79ee26147715a64c3

SHA1
a35a0a945f1fe193b4146c32fbfebe66de7e835f

SHA256
7f843a259d7a1f43f0232da11e888b6ad04167f7e5e7dc16ef3750b0a8b44f16

SHA512
a40df457a6c8c077eb267e494d424c367cb908461c42ee73d1b4010735d77bec50282c9bb78dc77b65a59063c0ea4d0a3f4102be39bab4ef67da476a6ba22edb

Download Submit
memory/5000-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-1948-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download