Analysis
- max time kernel
149s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
27/08/2026, 03:35
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe
- Size 45KB
- Sample260827-d5s8esdk6v
- SHA256 39df9cf03ea33d73d2e2d189a4a07b1baf510542695df6e3f66c70c48f286b22
- MD5 ef20375e7d4ddf837435187c759ebde3
- SHA1 31413fb062aea6fdfd0093dcfd2b5045581cdb32
- SHA512 80dbe5705a1ddb58a66c6f8193cad4196b5776051c62a97574bdc503a78ce4bdc4ce7b76bb9d5ad8fd860a5476808a7b41a1b2f79c9b1dfa471c95dac60be7be
- SSDEEP 384:Iv/JYSrFQjGYzfNHP1zZYpMYUzMk9hBcecy/xotcsHP4BiM5tQi0Ciu32HKO:I/3Yd1zZN/zoy/WtvABVtx0CiuGHD
- TLSH T1572331B4AFD519B1D377DE79C9F2A5C3B972B02A3C06680D00C25B450D23B56EDA2A4F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2316-0-0x0000000000400000-0x000000000040B000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000500000002318b-5.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2316-10-0x0000000000400000-0x000000000040B000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2500-9-0x0000000000400000-0x000000000040B000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2500-12-0x0000000000400000-0x000000000040B000-memory.dmp INDICATOR_EXE_Packed_MPress - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation 2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe - Executes dropped EXE 1 IoCs
pid Process 2500 update_pdf.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 2026-08-26_ef20375e7d4ddf837435187c759ebde3_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 2316 wrote to memory of 2500 2316 2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-26_ef20375e7d4ddf837435187c759ebde3_elex_wannacry.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Users\Admin\AppData\Local\Temp\update_pdf.exe"C:\Users\Admin\AppData\Local\Temp\update_pdf.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2500
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\update_pdf.exe
- Size 45KB
- SHA256 ae305093512c28e58a8f370847e4c823971d5226c490f75733c04c9f1a82151a
- MD5 3323f30d44ba99d0a0a591cdb535b610
- SHA1 03446b88e3a0efcb9c3bd690524caa4c4be6156f
- SHA512 f8e37c22fbd4b380617272165f43cdf7a7752cb124f4f6ab7d519bd6b96e79d0fad26a9b93f261e5f7e39e7eddfe31d587e5b1a970c10dc4a80943c583a79b7b
- SSDEEP 384:Iv/JYSrFQjGYzfNHP1zZYpMYUzMk9hBcecy/xotcsHP4BiM5tQi0Ciu32HKd:I/3Yd1zZN/zoy/WtvABVtx0CiuGHM
- TLSH T1462331B4AFD519B1D377DE79C9F2A5C3B972B02A3C06680D00C25B450D23B56EDA2A4F
- MD5 SHA1 SHA512 SSDEEP TLSH