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
19/07/2026, 01:56
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-19_427724a043192294325a490f9783e671_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-19_427724a043192294325a490f9783e671_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-19_427724a043192294325a490f9783e671_cryptolocker_elex.exe
- Size 1.0MB
- Sample260719-cc6sdact2v
- SHA256 cd7d6b97eba3167fcfabba39ee020aabf9af1f2242bcc6513be6fb72a2aa45ed
- MD5 427724a043192294325a490f9783e671
- SHA1 4329a74ff1e8d6c0e3cdc49e0196888dd4f47b07
- SHA512 1fea42be39154bd6635a0f7241a6dcca318f7cf3b9c4a0f467ff7c359224730f7951756717bf3e650ca2cb8f3eb38627abb0e9ce4bfcaa5c17686ab5d1389f7e
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqk:bGbvflT/ZFIjBzhxwOgXKarY1iBN
- TLSH T1AA2519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1812-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001136a-13.dat CryptoLocker_rule2 behavioral2/memory/5552-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5552-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5552 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 2026-07-19_427724a043192294325a490f9783e671_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 1812 wrote to memory of 5552 1812 2026-07-19_427724a043192294325a490f9783e671_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-19_427724a043192294325a490f9783e671_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-19_427724a043192294325a490f9783e671_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1812 -
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:5552
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 0d90b380ddee1175a456ede9bd34f1926afc8bf819fa9591b39a8ce4262eb418
- MD5 7a9a84ba906c028018e2d8e7460bb71a
- SHA1 04a074afd8ef2f97452a697249fd5a83be53e665
- SHA512 87b023eb0598fbdfd8355f92929769ff20417209d9ab99fd65037e32a6c0bb21d3c8f71b9fe0b14158ff4119c158901009092168fc06e0af359a2e9b6644c459
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqy:bGbvflT/ZFIjBzhxwOgXKarY1iBH
- TLSH T1232509BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH