Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
07/08/2026, 01:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-07_94f928516f61ba25eb65302a9aedaf63_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-07_94f928516f61ba25eb65302a9aedaf63_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-07_94f928516f61ba25eb65302a9aedaf63_cryptolocker_elex.exe
- Size 47KB
- Sample260807-b7xyaavgnf
- SHA256 d2e3e37c9ca5f7834d06afcc181716de849ceea2940f8a841cb6bd78711b7642
- MD5 94f928516f61ba25eb65302a9aedaf63
- SHA1 39099721aa1bba602736f59c8ac8991c7d527c83
- SHA512 6012a211b569c64b240bd0a94bc6b614f19b1d6a6bd1872be2802132b845a76bb7f9442df84249a9e27ffe05f06ff4b45b9699c1de2d956608e67af424aef8d9
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKYCF:bgGYcA/53GAGgIvF9v2ZZCF
- TLSH T1682355387FE66972E37BCFB586F651C6B93578223D16980D40CA43844833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2228-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00130000000243aa-13.dat CryptoLocker_rule2 behavioral1/memory/660-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/660-19-0x0000000008000000-0x000000000800A000-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-1-5-21-2937465464-4167303362-2236413517-1000\Control Panel\International\Geo\Nation 2026-08-07_94f928516f61ba25eb65302a9aedaf63_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 660 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_94f928516f61ba25eb65302a9aedaf63_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 2228 wrote to memory of 660 2228 2026-08-07_94f928516f61ba25eb65302a9aedaf63_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-07_94f928516f61ba25eb65302a9aedaf63_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-07_94f928516f61ba25eb65302a9aedaf63_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2228 -
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:660
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 071ad2f2ac3124e17d1aa482471f75825299bedcb0528802affab7f59cdcdd07
- MD5 2a843a26b7140deb9a4ccaba2a9b0d6b
- SHA1 0bb671ab85e629343f67ee12e710dfca4297ab2d
- SHA512 b1a52345e90f9c71365bad58a0aaa28b35726fd6a23b16688159673b568d662050f88f09b8629c3c9500e725f308f2481ecdc0391c55e1165c472058160243af
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIKYCY:bgGYcA/53GAGgIvF9v2ZZCY
- TLSH T15C2355387FE66972E37BCFB586F651C6B93578223D16980D40CA43844833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH