Analysis
- max time kernel
150s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/07/2026, 22:47
Behavioral task
behavioral1
Sample
2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
8 signatures
150 seconds
General
- Target 2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe
- Size 311KB
- Sample260728-2qxt3ayamd
- SHA256 426475b41961213f934cd10835bc06078726a90813a3f47efa2829f94ecfc3b7
- MD5 6f81fd31e81152944bee7bba4cd8b7ed
- SHA1 3de4a7ad966f8d7369b88c36b03d0dd96a08947f
- SHA512 5a05f8e5d6d6c362eb63115db7d5953b75faf5bdc466aa77f35d087f6fc74710705f1b3d8c92ed849cdabe8620078eb887951ead4c266f46cec05180924c7f96
- SSDEEP 6144:PqFF2Ie+eFrAHrG3ZR/FWoQGlQ8yXhsVzES:iFF2rcK3ZR/soQsQ/hE
- TLSH T139645C86EB8EB8D3E3151235C9AF735D3A39FA805A929B333E6831745903EF19D46107
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Detects Cosmu payload 2 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral1/files/0x0010000000024419-11.dat family_cosmu behavioral1/files/0x000400000001dbe7-8.dat family_cosmu - Renames multiple (4910) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Executes dropped EXE 2 IoCs
pid Process 1608 Zombie.exe 3244 _zynap_service.exe - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Zombie.exe 2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe File opened for modification C:\Windows\SysWOW64\Zombie.exe 2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\Internet Explorer\en-US\ieinstal.exe.mui.tmp Zombie.exe File created C:\Program Files\Java\jre-1.8\bin\api-ms-win-core-console-l1-2-0.dll.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\WordR_Grace-ppd.xrm-ms.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\de\System.Xaml.resources.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\it\System.Windows.Forms.Primitives.resources.dll.tmp Zombie.exe File created C:\Program Files\Internet Explorer\IEShims.dll.tmp Zombie.exe File created C:\Program Files\Java\jdk-1.8\bin\jps.exe.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationTypes.resources.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework-SystemData.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Windows.Controls.Ribbon.resources.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationClient.resources.dll.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial4-pl.xrm-ms.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-white_scale-100.png.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Windows.Presentation.dll.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Tw Cen MT-Rockwell.xml.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial4-ppd.xrm-ms.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogoSmall.scale-100.png.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIntegration.dll.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ink\tipskins.dll.tmp Zombie.exe File created C:\Program Files\Common Files\System\msadc\fr-FR\msadcer.dll.mui.tmp Zombie.exe File created C:\Program Files\Java\jre-1.8\lib\fontconfig.properties.src.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.AppContext.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\PresentationFramework.Aero.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Tasks.dll.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.el-gr.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.CoreLib.dll.tmp Zombie.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\jce.jar.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019VL_KMS_Client_AE-ul-oob.xrm-ms.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_ca.xml.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ink\imjplm.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\UIAutomationClientSideProviders.resources.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\System.Windows.Forms.Primitives.resources.dll.tmp Zombie.exe File created C:\Program Files\Java\jdk-1.8\jre\legal\jdk\bcel.md.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Document Themes 16\Wisp.thmx.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019VL_MAK_AE-ul-phn.xrm-ms.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.15\System.Security.SecureString.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\PresentationFramework.Royale.dll.tmp Zombie.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\jp2ssv.dll.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-private-l1-1-0.dll.tmp Zombie.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\fontmanager.dll.tmp Zombie.exe File created C:\Program Files\Java\jre-1.8\bin\javaw.exe.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Integration\SPPRedist.msi.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Office16\Library\Analysis\ANALYS32.XLL.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.CodeDom.dll.tmp Zombie.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-libraryloader-l1-1-0.dll.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_Retail-ul-oob.xrm-ms.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\sql70.xsl.tmp Zombie.exe File created C:\Program Files\Java\jdk-1.8\jre\lib\amd64\jvm.cfg.tmp Zombie.exe File created C:\Program Files\Microsoft Office\AppXManifest.xml.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-pl.xrm-ms.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_SubTrial-ul-oob.xrm-ms.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ink\es-ES\tipresx.dll.mui.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\es\System.Xaml.resources.dll.tmp Zombie.exe File created C:\Program Files\Java\jre-1.8\lib\psfontj2d.properties.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\c2rpridslicensefiles_auto.xml.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp4-ul-oob.xrm-ms.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_Subscription-ul-oob.xrm-ms.tmp Zombie.exe File created C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTest3-ppd.xrm-ms.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\concrt140.dll.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\RepoMan.dll.tmp Zombie.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwritalm.dat.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Private.Uri.dll.tmp Zombie.exe File created C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationUI.resources.dll.tmp Zombie.exe - System Location Discovery: System Language Discovery 1 TTPs 3 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 2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Zombie.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language _zynap_service.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2228 wrote to memory of 1608 2228 2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe 89 PID 2228 wrote to memory of 3244 2228 2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-28_6f81fd31e81152944bee7bba4cd8b7ed_elex_wannacry.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\Windows\SysWOW64\Zombie.exe"C:\Windows\system32\Zombie.exe"2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1608
-
-
C:\Users\Admin\AppData\Local\Temp\_zynap_service.exe"_zynap_service.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3244
-
Network
MITRE ATT&CK Enterprise v16
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-668679576-120646659-2289335452-1000\desktop.ini.exe
- Size 85KB
- SHA256 fe59843cab90618f8a70cf68dc04657f26c79b28693681c51370d797a8b5fa8e
- MD5 8a908f2f23f84c25431625d83dfd5f6f
- SHA1 8950b681a81edf323b37f8501f193318480a1872
- SHA512 f4ef28b3fdbfb178153afc409fba1fcb47984cd62747130aa75d208a997c1984726c3234e6696305d16c4615249d1f45b4344d9e8b91eff299890ff893c657e1
- SSDEEP 1536:W7ZppApUFpEhLfyBtPf50FWkFpPDze/qFsxEhLfyBtPf50FWkFpPDze/qFsAcEhP:6pWpUFpEhLfyBtPf50FWkFpPDze/qFsS
- TLSH T1B983292E9DEEF0D3F3AA2170D92B769C9C1ABC0AADF6BC763E4135D51801EB2450514B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\_zynap_service.exe
- Size 225KB
- SHA256 4196836930ca8fede9b73a776799612a9355a954f8846f8246d615a8b0d76da6
- MD5 3f761645c1ac390afed939827b7cbd47
- SHA1 c4c45b292adacfca5e38f4132c952243c08c63a8
- SHA512 3443435e9c36aab507ab718c31c5d451b16c79e97248f8af5987451bd17f07de80adfa7ded379eae7aa17e55966313ad6a165c026573dba8aadf5ddaf0391290
- SSDEEP 3072:o0kmPHrG3cWR/FzSDsEzt4lQM0QZkrXhsVzeLRfv2iYp:QAHrG3ZR/FWoQGlQ8yXhsVzEY
- TLSH T14C345C87FB86ACA7E605073AC9EF835D3339E3D056869B135E7C71385A476C0AD87206
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\Zombie.exe
- Size 85KB
- SHA256 23c655f830f7623ae49b29409d1c739efb418185e65bc75de723863dce80296c
- MD5 1072ac07c4a018b69a0bd12c57f83cd0
- SHA1 30082f42ee7bc55d4a3b778a7026b376f12b92e5
- SHA512 5f55f80a1a4a177b516a14c437e6258c7c27d605d36f4c28aaf178ba3865a1ad632e15bbf31b16597ff0653dd972fb8b5d7a81261b2021c2bd5a0720fa814a76
- SSDEEP 1536:W7ZppApUFpEhLfyBtPf50FWkFpPDze/qFsxEhLfyBtPf50FWkFpPDze/qFsAcEhT:6pWpUFpEhLfyBtPf50FWkFpPDze/qFsi
- TLSH T1F5833A2E9DEEF0D3F3EA2270D92B769C9C19BC0AADF6BC763E4135951801EB2450514B
- MD5 SHA1 SHA512 SSDEEP TLSH