Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
21/04/2026, 04:40
General
- Target 2026-04-21_fde8b2913591c321616de42f3509ca83_elex_wannacry.exe
- Size 66KB
- Sample260421-fa11wsbx81
- SHA256 b5734ef5957d1b989ea9b2acf98a41312e6afd4b2362a6183f748317c6ce99b7
Score
9/10
Malware Config
Signatures
- Detects Windows executables referencing non-Windows User-Agents 1 IoCs
- Executes dropped EXE 1 IoCs
- Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-21_fde8b2913591c321616de42f3509ca83_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-21_fde8b2913591c321616de42f3509ca83_elex_wannacry.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
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
-
-
C:\Windows\Debug\oqchost.exeC:\Windows\Debug\oqchost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
oqchost.exe
memory/1524-0-0x0000000010000000-0x000000001000A000-memory.dmp
memory/1524-11-0x0000000000AD0000-0x0000000000C1D000-memory.dmp
memory/5588-14-0x0000000001390000-0x0000000001397000-memory.dmp
memory/5588-13-0x0000000000960000-0x0000000000AAD000-memory.dmp