Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
09/09/2026, 13:48
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe
- Size 28KB
- Sample260909-q4e1maxvfy
- SHA256 34bd3abe89b0e80b6749760b6374b2a54c92f5407d09821288a68e6e89512ab9
- MD5 ae73f724af9e413890e498b94bec3a95
- SHA1 bd2264953a5110cbf39e9f4a242d38217c7222e9
- SHA512 ce637d0e8642477d993e85208680be7f0bf34cb6f6df69cbfe92a3e301b67a9fc3fbd61c694fa14ccb84b8c4557744d53b66f8ff3d1d17764a03b4ac2666eaf0
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/XWdX/:bIDOw9UiaCHfjnE0SkX/
- TLSH T11BD2E839BEE96C62E1777B7054F79282A8797D413E28494FA8CF73890931E56FC2210D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2100-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b0000000243a5-12.dat CryptoLocker_rule2 behavioral1/memory/2184-17-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2184-25-0x0000000008000000-0x0000000008009000-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 2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 2184 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 lossy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2100 wrote to memory of 2184 2100 2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-09_ae73f724af9e413890e498b94bec3a95_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100 -
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:2184
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 28KB
- SHA256 84bee014452a778204d6092954e4785829a7cede44bc7db8618565a302eef0fb
- MD5 c4c8abe7fb4f77c8628d9404fa7e060d
- SHA1 e0d0d138dfd60b728187f4e581b737897561921b
- SHA512 2082288470f552383a3ae828200c9e376e4f4656909d996c16ed5cb4d65c7ffaf3acfd0d7714d33f54b7fdb147c33ad1b54e591bed6a001c388a002ac3dfd994
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/XWdXDN:bIDOw9UiaCHfjnE0SkXB
- TLSH T1EFD2E839BEE96872E177BB7054F39282A8797D413E24494F98CF73890931E56FC2210D
- MD5 SHA1 SHA512 SSDEEP TLSH