Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20250610-en -
resource tags
arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system -
submitted
02/07/2025, 19:23
Static task
static1
Behavioral task
behavioral1
Sample
2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe
Resource
win10v2004-20250610-en
General
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Target
2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe
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Size
41KB
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MD5
0a5b87cb514d71ed1dc64fa90d81ef0c
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SHA1
f6a60eb54d0fe3977c07bf2d7ab543004a920278
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SHA256
ce48054e59acc46fd4a6c1c31dabf926f2397c6868571332ab9d9b60d826c57f
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SHA512
5672561454da22d8209d57a5ff9e0b51816fa7502f40327797cf2051d9f36f49af01d2715e010dfc292e5c08b671b0439e9705163201c19a67813f10bbaf8d64
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SSDEEP
384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf6XT+0vJsg5b5U3O2PrV:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YY
Malware Config
Signatures
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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-1-5-21-815616237-4012932787-4224613991-1000\Control Panel\International\Geo\Nation 2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe -
Executes dropped EXE 1 IoCs
pid Process 1368 hasfj.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1776 wrote to memory of 1368 1776 2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe 86 PID 1776 wrote to memory of 1368 1776 2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe 86 PID 1776 wrote to memory of 1368 1776 2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2025-07-02_0a5b87cb514d71ed1dc64fa90d81ef0c_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1776 -
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:1368
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
41KB
MD59120b5445ad9bedcef725eb222421e9f
SHA1da416b4ed8c4f2079e6b5d9d09ecc5099a46b920
SHA256a934b89a3ddbd820b5a0a8298c58767a12f3646c98cc5f52f1ff750f62830d71
SHA512a05f8bc8bb35c402168d1f0e2fab43ccf1f329577d6b1d4793cae71ed8026d182b6de67667a4e96f08a322bf1398bd86c36d939d03bdc07cad3ea36c61e40526