Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
21/08/2026, 02:44
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_92c56c033a979b32d05c1b387af2017d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_92c56c033a979b32d05c1b387af2017d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_92c56c033a979b32d05c1b387af2017d_cryptolocker_elex.exe
- Size 49KB
- Sample260821-c8dfps1eqb
- SHA256 7e4f22e7e4ed2a01438a7d21540b36a42bbed6a0675f1a41a59db246bf136df7
- MD5 92c56c033a979b32d05c1b387af2017d
- SHA1 610f40293a7bc26cebfbcf62131818c7d85489b6
- SHA512 39c5652293deb1408a36bffdee4398a6f981863c27bcc4890c940f3eac536c6fd922e3fc07ea975a4e0079e45ad12eaf7effbf59f9eb571c38e2e6cdccd9ca53
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/dp:bgGYcA/53GAGgIvF9v2ZY
- TLSH T1533333387FE56972E37BCFB586F691C2B975B8223D16980D40CA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4504-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000019cb1-13.dat CryptoLocker_rule2 behavioral2/memory/4588-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4588-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4588 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 2026-08-20_92c56c033a979b32d05c1b387af2017d_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 4504 wrote to memory of 4588 4504 2026-08-20_92c56c033a979b32d05c1b387af2017d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_92c56c033a979b32d05c1b387af2017d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_92c56c033a979b32d05c1b387af2017d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504 -
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:4588
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 49KB
- SHA256 ed7312a91b4e0631f69c499eea6211c8743b626c75ebe97670e6d66f90a57c37
- MD5 38b0f9fb5362f19070219beab411dd9f
- SHA1 58aeb81d0ac382d7d366af21f630bdbbd4383caf
- SHA512 85ed7989cc618e48b790b36173585616cf96bf30f9a5c3811b1a33ec718157b5f161e073624f96da7333f747c6d632cfc123ea1e1897fc571f75108d64ac1653
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/dS:bgGYcA/53GAGgIvF9v2ZP
- TLSH T1523333387FE56932E37BCFB586F691C2B97578223D16980D40CA43844833F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH