Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/10/2026, 01:44
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-10-22_a6d3d2e8f6ab76def87f0c32e388e266_elex_wannacry.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-10-22_a6d3d2e8f6ab76def87f0c32e388e266_elex_wannacry.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-10-22_a6d3d2e8f6ab76def87f0c32e388e266_elex_wannacry.exe
- Size 50KB
- Sample261024-b5s7bae14t
- SHA256 a54843d1cbf94e4f54a7ac5c6fafb3981b807cdd7567e385a06b7091ac9a8037
- MD5 a6d3d2e8f6ab76def87f0c32e388e266
- SHA1 ec5d64a607d208e443d0b964b9f2e624e5909028
- SHA512 81e43fe12cf9ef4b96f20038e4f8420dcb26e8a85b8e3d714aef300be4b4552d51fb0d0bc3ba20c3d489e43fdca27f9c8b6d539694aed7b0fb0d8ec2ee156050
- SSDEEP 768:F/3ed1zZN/zoy0rtsGA4i2BIHRmibsa4BI:FvWbzooeOsi4a4a
- TLSH T14533DB78AFD51972E377DEB9C9F2A5C3B822B0267D06580D40C25B450D23F52EDA2A4F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral2/memory/4616-0-0x0000000000400000-0x000000000040B000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x000a000000019cb3-4.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/4616-9-0x0000000000400000-0x000000000040B000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/3024-11-0x0000000000400000-0x000000000040B000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 3024 update_pdf.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname update_pdf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain update_pdf.exe - System Location Discovery: System Language Discovery 1 TTPs 2 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 2026-10-22_a6d3d2e8f6ab76def87f0c32e388e266_elex_wannacry.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language update_pdf.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4616 wrote to memory of 3024 4616 2026-10-22_a6d3d2e8f6ab76def87f0c32e388e266_elex_wannacry.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-22_a6d3d2e8f6ab76def87f0c32e388e266_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-22_a6d3d2e8f6ab76def87f0c32e388e266_elex_wannacry.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Users\Admin\AppData\Local\Temp\update_pdf.exe"C:\Users\Admin\AppData\Local\Temp\update_pdf.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:3024
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\update_pdf.exe
- Size 50KB
- SHA256 c3d04b49ba7bd56d64d148e86c0825ba8e95f4a3d4fd97801536d23fdc80f1ab
- MD5 55546b1037d6551873ca129ae13e75f3
- SHA1 20eed5ce8cd12415146b3b199468823f49ea2bff
- SHA512 82425413f04563a0cdf1b6020ebe1469b295412baffc0006927af30711314179615a4e5d6efd8189e481d41cce7c8c8a574fe38285d173898eeee31972e6a2c5
- SSDEEP 768:F/3ed1zZN/zoy0rtsGA4i2BIHRmibsa4BH:FvWbzooeOsi4a4B
- TLSH T17333DA78AFD51972E377DEB9C9F2A5C3B822B0267D06580D40C25B450D23F52EDA2A4F
- MD5 SHA1 SHA512 SSDEEP TLSH