Analysis
- max time kernel
148s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
17/07/2026, 03:04
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-17_830eb0639980cd7c238395a966b3ca09_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-17_830eb0639980cd7c238395a966b3ca09_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-07-17_830eb0639980cd7c238395a966b3ca09_cryptolocker_elex.exe
- Size 41KB
- Sample260717-dkxp4sh17q
- SHA256 5b5688fd8a1ec207fc76eb61f7cb50f4ee2d5fff5e6b12213e7cdb457260107e
- MD5 830eb0639980cd7c238395a966b3ca09
- SHA1 3af97763c3e8a297b3c313def3313e5eb3f93535
- SHA512 5e755d66280aea9d99f08b004774e6b9eb592aaca7eebbe351e883716f1031fe33f4daeefd66e6eb5f331e5337b5948fb72c0b2f313121c19b0ae1d0ac133c7e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCI:bgGYcA/53GAGgIvF1
- TLSH T1F71374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F66DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2892-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0009000000011380-13.dat CryptoLocker_rule2 behavioral2/memory/2456-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2456-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2456 hasfj.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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-07-17_830eb0639980cd7c238395a966b3ca09_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2892 wrote to memory of 2456 2892 2026-07-17_830eb0639980cd7c238395a966b3ca09_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-17_830eb0639980cd7c238395a966b3ca09_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-17_830eb0639980cd7c238395a966b3ca09_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2456
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 a11fc0dc2c37c4c31090fe119b518caaa24ea5e7c5016b9acfcb97a669d4ab08
- MD5 0b08ffcc0dfd8869a1b0dc52f455e652
- SHA1 49b9687712d42f0caf9e3194b475b29cc40e56d4
- SHA512 a98bb9a24bdc93888da3fa3de5bd0a3c78c0c41c88678ca34a6ecd8325dea3cbef8ae14731d7222a64e5f9316007850414dfa8afd61a36c4b0e8f0c3079c5d19
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCd:bgGYcA/53GAGgIvFY
- TLSH T1711385387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F62DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH