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
30/08/2026, 23:21
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-29_f6c72036b2776c45a30331df30413683_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-29_f6c72036b2776c45a30331df30413683_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-29_f6c72036b2776c45a30331df30413683_cryptolocker_elex.exe
- Size 1.4MB
- Sample260830-3cf5tstyhx
- SHA256 b4498eced42b44dadae089b75fc56e62251b07114e6d546092bad7644c1e8d01
- MD5 f6c72036b2776c45a30331df30413683
- SHA1 b4f4311e454f9c36565cee4c7ceb694eb53da583
- SHA512 8f08d62fd4f83dddb41e97085cecb868dd0c8602c2ea91766d2c5a0a1769c6f45f3154426fff148f02013210124db84ab61a5e0bc44d043d09c78ce1ad2b6c68
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq8ckjcvt:bGbvflT/ZFIjBzhxwOgXKarY1iBL74
- TLSH T1BF6508BE34A72649FE625C307FECF660DB57287ACB6BDAF14595A0301A210D2FC52817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4644-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00160000000115f5-13.dat CryptoLocker_rule2 behavioral2/memory/4728-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4728-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4728 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 2026-08-29_f6c72036b2776c45a30331df30413683_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 4644 wrote to memory of 4728 4644 2026-08-29_f6c72036b2776c45a30331df30413683_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-29_f6c72036b2776c45a30331df30413683_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-29_f6c72036b2776c45a30331df30413683_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4644 -
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:4728
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.4MB
- SHA256 9945149e968eb35f981e0d952e83b6adb11af6dad5c185774bc4b71ba292bde3
- MD5 df2e8d17b0395e9efc72994604832875
- SHA1 4659c5609160552746828e54dae8fef30b0853a6
- SHA512 075ec6095568fd8bf0d5c7606552d3d5739f52c1e320dda8ffc6d07780099e6fa34653c6450b3261def881a10b7760440b6d98704bb99e190ae82434c3604f71
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq8ckjcv2:bGbvflT/ZFIjBzhxwOgXKarY1iBL73
- TLSH T1456508BE34A72649FE625C307FECF660DB57287ACB6BDAF14595A0301A210D2FC52817
- MD5 SHA1 SHA512 SSDEEP TLSH