Analysis
- max time kernel
149s - max time network
129s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 18:50
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe
- Size 59KB
- Sample260820-xhbjmstdnc
- SHA256 6c5cc0f73241a546e9569f3179033b0ba63b682213d5916ded78c6b0102ed81c
- MD5 c22cff1be74676208d0240e03ea244af
- SHA1 9b0ba8a17d70d1c5c055f9105ee43bf4bf09be23
- SHA512 6ef3490e2a61f378547155e502d5bc4b925d2f4dea3cbcf26e057a5f7b4a7881f9ab90fe56ccbea04239cabf94d420d3afd2b381e9803b1a326df3c864c18713
- SSDEEP 768:xW9+F8BPtElggggggLvggggggggUaocdF+qqPbNMugJI/xZ9dHtTFmd1MVZy0Fi:ekoqzqTNMDSpZ9fTKMTZi
- TLSH T1814349386AD51572E37BDEB585F251CAB96DBC1339035C0E40B2F3440AB3BD2ADA191E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral2/memory/3968-0-0x0000000000400000-0x000000000040C000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x0010000000019cbf-5.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/3968-10-0x0000000000400000-0x000000000040C000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/5128-11-0x0000000000400000-0x000000000040C000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 5128 btkba.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 2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language btkba.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3968 wrote to memory of 5128 3968 2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_c22cff1be74676208d0240e03ea244af_elex_upatre_wannacry.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968 -
C:\Users\Admin\AppData\Local\Temp\btkba.exe"C:\Users\Admin\AppData\Local\Temp\btkba.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5128
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\btkba.exe
- Size 59KB
- SHA256 8392e896b2c8459d01138caf4101d5212fda684945ae898a2fbe4b2828639afe
- MD5 b9034f942fe4994f85e9950cab13a98b
- SHA1 324c3617ac3d3005b24b919e2b3b8f27f7e81b3b
- SHA512 8bb249a8c1db653579fc94dcbddcabc6fbafae65571bab514c9083b6ff99f7f047f8ea7adaeeab5b88e1a9834ee918d51276b52309a47fc9129d11de65888e9a
- SSDEEP 768:xW9+F8BPtElggggggLvggggggggUaocdF+qqPbNMugJI/xZ9dHtTFmd1MVZy0F7:ekoqzqTNMDSpZ9fTKMTZ7
- TLSH T1D65349386AD51572E37BDEB585F251CAB96DBC1339035C0E40B2F3440AB3BD2ADA191E
- MD5 SHA1 SHA512 SSDEEP TLSH