Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/07/2026, 08:31
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-08_6c132950280f3d81316763653650e259_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-08_6c132950280f3d81316763653650e259_cryptolocker_elex.exe
Resource
win11ltsc2024-20260706-en
16 signatures
150 seconds
General
- Target 2026-07-08_6c132950280f3d81316763653650e259_cryptolocker_elex.exe
- Size 44KB
- Sample260708-keytjset9r
- SHA256 68473e0b87f3be32b4f267426e50cca353a97ef394c009ea0a306017bfed9d0e
- MD5 6c132950280f3d81316763653650e259
- SHA1 844ab2826c5163824e351b57fca4ee0e1b4d9906
- SHA512 fa9293285288e591c92e90a3e6ced7ef5ad10aa7bf26841940f2d9b9946080cdff221a21b6e254704d47d5b24fe78817121db1a08351e00d5957c31953a00a5a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTx:bgGYcA/53GAGgIvFA
- TLSH T16D2365387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/3000-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000900000002449a-13.dat CryptoLocker_rule2 behavioral1/memory/4580-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4580-25-0x0000000008000000-0x000000000800A000-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 2026-07-08_6c132950280f3d81316763653650e259_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4580 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 2026-07-08_6c132950280f3d81316763653650e259_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 3000 wrote to memory of 4580 3000 2026-07-08_6c132950280f3d81316763653650e259_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-08_6c132950280f3d81316763653650e259_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-08_6c132950280f3d81316763653650e259_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000 -
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:4580
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 45KB
- SHA256 49dd80b0a762718655e235589be3b739b9d9bf0c4554ec18c56b0c3971cd62a1
- MD5 c65f7b43bdee953704a28a84e86c8dfa
- SHA1 79993f1491b9d42647912a91f7dee5ea6e307363
- SHA512 756800c0f1739d1edfd9da445ce5ff1cfb6d04a8cd393acbae4454d14c40288861d6c303b12704427a56c846b6bfaed1cc787497ddf23604b750e347047729a5
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTT:bgGYcA/53GAGgIvFW
- TLSH T1B92365387FE62972D37BDF7586F691C6B975B8223D16980D40CA43444833F66ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH