Analysis
- max time kernel
150s - max time network
154s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
04/05/2026, 11:17
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-05-04_986540b1a1a0d2f648c523b807b3a69f_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-04_986540b1a1a0d2f648c523b807b3a69f_cryptolocker_elex.exe
Resource
win11-20260130-en
6 signatures
150 seconds
General
- Target 2026-05-04_986540b1a1a0d2f648c523b807b3a69f_cryptolocker_elex.exe
- Size 481KB
- Sample260504-ndwvcahx21
- SHA256 856bbc9bba0b8489326f67acd30f7c09a16c555b85cfff0601c368c04f85013b
- MD5 986540b1a1a0d2f648c523b807b3a69f
- SHA1 2caf6d5cbb78b7cd277c7fcc2fc8d16ab2dc1e8c
- SHA512 1da44fb2a73ccd4b475ca1fe5d56e6d3046a502920d26977375ea0925e8c678f403118e7fcb0364268ad7390550d413acdbc9c2b13af5d4b133a033b3ada536f
- SSDEEP 6144:KCjsJJ7JRJ2JiJ2JGJ2J1J2JuJ2JDJ2JTJwJ2JTJEJJJ2JTJEJ7J2JTJEJTJ2JT0:GFv
- TLSH T179A485A746DC8AE2E04F2BBC14F1897BCD40BE78087657132AE0A4EF599DFCA461C751
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4040-2-0x0000000000500000-0x0000000000587000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4040-3-0x0000000000500000-0x0000000000587000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000000437-14.dat CryptoLocker_rule2 behavioral2/memory/1620-27-0x0000000000500000-0x0000000000587000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral2/memory/4040-2-0x0000000000500000-0x0000000000587000-memory.dmp CryptoLocker_set1 behavioral2/memory/4040-3-0x0000000000500000-0x0000000000587000-memory.dmp CryptoLocker_set1 behavioral2/files/0x0008000000000437-14.dat CryptoLocker_set1 behavioral2/memory/1620-27-0x0000000000500000-0x0000000000587000-memory.dmp CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 1620 misid.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 2026-05-04_986540b1a1a0d2f648c523b807b3a69f_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4040 wrote to memory of 1620 4040 2026-05-04_986540b1a1a0d2f648c523b807b3a69f_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-04_986540b1a1a0d2f648c523b807b3a69f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-04_986540b1a1a0d2f648c523b807b3a69f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4040 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1620
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 482KB
- SHA256 fda97f9ea31987d21688c857b9c169351e9bb9530a90e14afed5d945d486aeac
- MD5 930500fc45d106f97ca745031cc855c6
- SHA1 ea3bd10c790889eb08353198dee87e097de00421
- SHA512 6a58febb5248b4627d5cd10f1c17b4f62a570772f0a0ab85879339d7d8e12d7b9b3eb73f7f7573202c1886e7c9a81f6058b90be7c7e6cdd5096f6fd61d151ffd
- SSDEEP 6144:KCjsJJ7JRJ2JiJ2JGJ2J1J2JuJ2JDJ2JTJwJ2JTJEJJJ2JTJEJ7J2JTJEJTJ2JT4:GFb
- TLSH T1C8A485A746DC8AE2E04F2BBC14F1897BCD40BE78087657132AE0A4EF599DFCA461C751
- MD5 SHA1 SHA512 SSDEEP TLSH