Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/08/2026, 01:57
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-07_0b7e6b7427469aae72e1668707a40a59_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-07_0b7e6b7427469aae72e1668707a40a59_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-07_0b7e6b7427469aae72e1668707a40a59_cryptolocker_elex.exe
- Size 52KB
- Sample260807-cdncesem5w
- SHA256 e02b95bcc0008554c50ef1fcf32aeeb8c57f57542cacde01fa92192f3b62f772
- MD5 0b7e6b7427469aae72e1668707a40a59
- SHA1 4902076af568053b7d70a5e29715c2cf5a304145
- SHA512 d6de22745501816f82ccf004e7bc1c99d8421d36822e010af3cd2a8a4e1656061cf782ddac6af7a88f3b622dfe5da5a0918f8d397f8ebf8270cb7ede76c0ec3d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycK/:bgGYcA/53GAGgIvFW17A
- TLSH T1F63301387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6140-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001b840-13.dat CryptoLocker_rule2 behavioral2/memory/1952-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1952-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1952 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 2026-08-07_0b7e6b7427469aae72e1668707a40a59_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 6140 wrote to memory of 1952 6140 2026-08-07_0b7e6b7427469aae72e1668707a40a59_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-07_0b7e6b7427469aae72e1668707a40a59_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-07_0b7e6b7427469aae72e1668707a40a59_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6140 -
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:1952
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 52KB
- SHA256 21c983005a1e95e549a9eaa88fa59537ac3d2001fb5f60cd41168ca6ceb487a5
- MD5 0c12016aea9eac6b6183cd4f2a1ea329
- SHA1 8a1210e99de7f26e18bac12fe364f89d3e7d5b21
- SHA512 1eda4be7e2f7083c3064076a09f18fafcd2b646b584d5507dba199b7efbd3882dde990d4432d9ec69373aed771b7749d0aaed944d61edede60d75d3c13307cb2
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ1J1ycKf1:bgGYcA/53GAGgIvFW17S1
- TLSH T1A93301387BE52932E37BDFB586F691C6B935B8223D16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH