Analysis
- max time kernel
149s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
05/05/2026, 03:58
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe
Resource
win10v2004-20260130-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe
Resource
win11-20260130-en
10 signatures
150 seconds
General
- Target 2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe
- Size 62KB
- Sample260505-ejj83af121
- SHA256 8fade851592b0f81b9140893b8bb12b899d48dcdce0e3e4cfd8af0a89bf71a66
- MD5 8aa0033274dc521d0d2a2dc2abbb4afd
- SHA1 ceca421438b53259b81c52b80cdc1063a1caee12
- SHA512 39c3e2c55212a85d85f886d0895b369c176fb15e9f90165caf6af3bba8393fc9cd801068784452d65c09b0294cfa9ac6f7154b1a6aaf66fdc400cb933da271f7
- SSDEEP 768:MDcpEBMLfQcub5Ep1PnGz96XyX9TdtldE9rsssgOOO8:MDcfLfIb5Ep1uzgyXVdtnysssK
- TLSH T10A5319A6F59184A7E41741348886F3F6E8A2BC35C50EAA42FFC0BF4F5C75A51F92450B
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule behavioral2/files/0x000e000000028e1b-2.dat INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA - Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 6024 attrib.exe - Executes dropped EXE 1 IoCs
pid Process 4024 riyhost.exe - Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
- Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Debug\riyhost.exe 2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe File opened for modification C:\Windows\Debug\riyhost.exe 2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe File opened for modification C:\Windows\Debug\riyhost.exe attrib.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 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 attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language riyhost.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 5012 2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 5012 wrote to memory of 6024 5012 2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe 78 PID 5012 wrote to memory of 2108 5012 2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe 81 - Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 6024 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-05_8aa0033274dc521d0d2a2dc2abbb4afd_elex_nitol_wannacry.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\riyhost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:6024
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
PID:2108
-
-
C:\Windows\Debug\riyhost.exeC:\Windows\Debug\riyhost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4024
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\debug\riyhost.exe
- Size 62KB
- SHA256 e57cc4d347b9a7609dc5710cd04965d251755ad713693abfa387226654770b74
- MD5 8daadff3d5bbc2fb08b5936930f8511a
- SHA1 7be76e3112e901e8ba81717a772dc51cc863dee0
- SHA512 e200b8a3df1428ba1491841f7dcc7bd1c6d6036c5eba836a50e601b0bca1e15a64be452e3f0904b71e33202cca3cb06ee7b164b46e83fe226f46452c96cfaad7
- SSDEEP 768:MDcpEBMLfQcub5Ep1PnGz96XyX9TdtldE9rsssgOOOm:MDcfLfIb5Ep1uzgyXVdtnysssM
- TLSH T1EB5319A6F59184A7E41741348886F3F6E8A2BC35C50EAA42FFC0BF4F5C75A51F92450B
- MD5 SHA1 SHA512 SSDEEP TLSH