Analysis
- max time kernel
150s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
23/08/2026, 11:43
Behavioral task
behavioral1
Sample
2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe
Resource
win11ltsc2024-20260710-en
windows11-ltsc_2024-x64
6 signatures
150 seconds
General
- Target 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe
- Size 27KB
- Sample260823-nvnkas1thx
- SHA256 9b97da523f693397e90806ac66571747942691e752f9dc97edc08d4eeb54926b
- MD5 1b8c37381abd2be2dff3872387467d2b
- SHA1 35fbaeebc4752bac38e72f125d10028e55bff26b
- SHA512 f65492905bf647c025585272163617dbecb50e694f62a675f6ac172464b564f0f5ebef13738df7aff920f92402b9b975846133f7357b542152cbf47f81e5c283
- SSDEEP 384:TBt7Br5xjL9AgA71Fbhv/r+k7ha3EzpsVvUaWq9C7E:37BlpppARFbh6qNpim2v
- TLSH T1C7C24B5E8B098033C39550305C2F78799CB7583C7F66DA6FAB178C1EAA767D0F828119
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Detects Cosmu payload 4 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral2/memory/4496-0-0x0000000000400000-0x0000000000409D5C-memory.dmp family_cosmu behavioral2/files/0x000b00000001b88f-2.dat family_cosmu behavioral2/files/0x000400000001b1b2-6.dat family_cosmu behavioral2/memory/4496-624-0x0000000000400000-0x0000000000409D5C-memory.dmp family_cosmu - Detects executables packed with eXPressor 4 IoCs
resource yara_rule behavioral2/memory/4496-0-0x0000000000400000-0x0000000000409D5C-memory.dmp INDICATOR_EXE_Packed_eXPressor behavioral2/files/0x000b00000001b88f-2.dat INDICATOR_EXE_Packed_eXPressor behavioral2/files/0x000400000001b1b2-6.dat INDICATOR_EXE_Packed_eXPressor behavioral2/memory/4496-624-0x0000000000400000-0x0000000000409D5C-memory.dmp INDICATOR_EXE_Packed_eXPressor - Renames multiple (4872) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\es\WindowsBase.resources.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Client\AppvIsvSubsystems64.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_Trial-pl.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Common Files\System\ado\msado60.tlb.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pt-BR\WindowsFormsIntegration.resources.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationNative_cor3.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-crt-string-l1-1-0.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp-pl.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp3-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail2-ul-oob.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PowerPoint2019R_Retail-ul-oob.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipRes.dll.mui.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.Compression.ZipFile.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\SkypeServiceBypassR_PrepidBypass-ul-oob.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\FPA_f3\FA000000003.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\OneNoteLogo.scale-140.png.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\SharedPerformance.man.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\WindowsFormsIntegration.resources.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-handle-l1-1-0.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_Trial-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Drawing.Primitives.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Diagnostics.EventLog.Messages.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStdVL_MAK-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\clrgc.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\tr\PresentationCore.resources.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework-SystemData.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\tr\UIAutomationClientSideProviders.resources.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jre-1.8\lib\accessibility.properties.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\ClientARMRefer_eula.txt.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\FORMS\1033\INFOML.ICO.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Xml.XPath.XDocument.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\ext\cldrdata.jar.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\MLCFG32.CPL.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jdk-1.8\jre\legal\jdk\ecc.md.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\deploy\messages_zh_HK.properties.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jre-1.8\lib\ext\sunmscapi.jar.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTrial-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.contrast-white_scale-140.png.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\mce.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Forms.resources.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\cmm\PYCC.pf.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp2-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Trial-ul-oob.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\SkypeforBusinessR_Retail-ul-oob.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\1033\ORGCHART.CHM.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ko\System.Windows.Controls.Ribbon.resources.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial-pl.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\StandardR_Trial-pl.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019MSDNR_Retail-pl.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial1-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp5-ul-oob.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_OEM_Perp-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lt-lt.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOMessageProvider.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jre-1.8\bin\jp2ssv.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectPro2019R_Retail-ul-phn.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProjectProCO365R_SubTest-ppd.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Microsoft Office\root\Licenses16\PublisherR_OEM_Perp-pl.xrm-ms.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.IO.FileSystem.Watcher.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\createdump.exe.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-file-l1-2-0.dll.tmp 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-22_1b8c37381abd2be2dff3872387467d2b_elex_wannacry.exe
Processes
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-2301830172-776172150-2531349243-1000\desktop.ini.tmp
- Size 27KB
- SHA256 fb68374b88e714ebd22d1a037347953ca1bfa41750befbb7a8b8380fa0987ba4
- MD5 9531dff162ecb51be7deffbfdd1a17a8
- SHA1 2ad820226a598ea491c2bc5edde3b3788cf26ce4
- SHA512 add86ae1bd638fa322557decba252aa2cb3bc7bf0b1bef4a6f69a03ac344883aff454c6ca5d0e6270b621541b1a8acdc0edf7e2ba139954503e558c56a6e07db
- SSDEEP 384:TBt7Br5xjL9AgA71Fbhv/r+k7ha3EzpsVvUaWq9C7O:37BlpppARFbh6qNpim2t
- TLSH T1B7C24B1E8B098033C35550305C2F78799DB7543C7F669A6FEB178C2EAAB63D0F828119
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\7-Zip\7-zip.dll.tmp
- Size 126KB
- SHA256 e33e25a3c1386dafada32858beda96eccfa789379539beb62e149ae741694ab2
- MD5 d177ee670b23d241962edf56fa2c0bc7
- SHA1 f491ea228ed56887203de8f614d9bdd9baf8be5a
- SHA512 3fc965318fd1939be63995f651cc2db793ccd04762be7d57f0e1fb685004b69ec487c9bad2e41f6ba78cb29c99919f8601c0765b7addc4bd393879d6e06492a4
- SSDEEP 3072:1pWp6qN65ZMfTiu66I3UwqSsMBlsWb4A+G:iTMMfTinqncsWp+G
- TLSH T11AC3F6607CAEF6A0CF4412396D6BBE83C305398F3C5ACE4676A519E3913CD910C9B4E6
- MD5 SHA1 SHA512 SSDEEP TLSH