Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/07/2026, 17:40
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-22_6b19d964ade95020d04a59acc6b9cf40_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-22_6b19d964ade95020d04a59acc6b9cf40_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-22_6b19d964ade95020d04a59acc6b9cf40_cryptolocker_elex.exe
- Size 1.0MB
- Sample260722-v9bydaab38
- SHA256 d4e2d02769e155f69afe622a31d8b5bb6b1969fbacadc4f50006a04538005c48
- MD5 6b19d964ade95020d04a59acc6b9cf40
- SHA1 993fcff84bf245f8dfd3a82f40c75e6c6790694a
- SHA512 b13b376787f9a1cb1482041e35f4b59cc6487f4ce570ce4ee5a89aa29a4e823ec0bebe42f5de5469bd82d5af6cd288e5213a118293f0c629452a10e927709434
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq0:bGbvflT/ZFIjBzhxwOgXKarY1iBd
- TLSH T1E72509BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5668-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000019ce0-13.dat CryptoLocker_rule2 behavioral2/memory/3620-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3620-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3620 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 2026-07-22_6b19d964ade95020d04a59acc6b9cf40_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 5668 wrote to memory of 3620 5668 2026-07-22_6b19d964ade95020d04a59acc6b9cf40_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-22_6b19d964ade95020d04a59acc6b9cf40_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-22_6b19d964ade95020d04a59acc6b9cf40_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5668 -
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:3620
-
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 3fbbeae316205774b91af5742f1966123144934cca20b0147e591c981f943372
- MD5 929447f43041f3a35812e6f8073a1635
- SHA1 2158cd31d92ddc39e7f678349282ab8b161ed53b
- SHA512 3e7da98486f0de88509d792854a075462c8a708f6c0b85602eb064f83092551c9e8bd621012392b805d83f81acf016cf2eb627d5b82e0e1a9cfd9c4992949e7b
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqa:bGbvflT/ZFIjBzhxwOgXKarY1iB/
- TLSH T1882509BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH