Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
10/09/2026, 04:29
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe
- Size 33KB
- Sample260910-e4h7haxfpa
- SHA256 a22dc8d9b1272afedf754fa3478e2b53dcd8d5a6f81b59194468150cab0fd8a5
- MD5 83c040a89b341ddfbd0172f011a3a919
- SHA1 3e94be0e8f7b982607075c1814d92e730cb7b47a
- SHA512 d5dffcd20aa1f8ae01ae2411b81a11d5f7701b4a9fc9cfa60c3b1a14886f3ce87f7970a279bfbdbc63973cd479226d47e8bab021e3e3dc311909c829e84b5bd3
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HKr42T3lJ/1cwve1nK8:bIDOw9UiaCHfjnE0SKrzBhwnK6i8
- TLSH T158F2B83C6EE56872D2B7AB7594F791C2A874B9123E25484E94CF63850D32F16FC6220E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/4368-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000024548-13.dat CryptoLocker_rule2 behavioral1/memory/4460-17-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4460-19-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - 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-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation 2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4460 lossy.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 2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4368 wrote to memory of 4460 4368 2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-08_83c040a89b341ddfbd0172f011a3a919_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4460
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 33KB
- SHA256 7b149edaafa3194d6aeaabf7d97b23044106edc4473b99d388fe36cfd9dd0e0b
- MD5 075fe9c652c7d33c83751472c76761fe
- SHA1 ddca220ae5fb5f79d34a78611181157cb9a96a0b
- SHA512 681162caa4e4239543016f610ae1fcd3f415be6d98d784a6a36b80d4cd1988dd2a166d7b183a58da73019ba7173f4e5488bfd371f5b004bfb3b3cc5e66e26926
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HKr42T3lJ/1cwve1nK/:bIDOw9UiaCHfjnE0SKrzBhwnK6i/
- TLSH T187F2B93C6EE56872E2B7AB7594F791C2AC74B9123E15484E94CF63850D32F16FC6120D
- MD5 SHA1 SHA512 SSDEEP TLSH