Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
28/07/2026, 04:49
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-28_45432d16e667e0b976f6c929c8d155ad_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-28_45432d16e667e0b976f6c929c8d155ad_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
6 signatures
150 seconds
General
- Target 2026-07-28_45432d16e667e0b976f6c929c8d155ad_cryptolocker_elex.exe
- Size 4.6MB
- Sample260728-ff33fayyb1
- SHA256 d86da4e65144755808f2f42b4c7b9dbba7c6a9592068b9823a0dd73146665377
- MD5 45432d16e667e0b976f6c929c8d155ad
- SHA1 f5e43f5609854aede23fef75917763230f5c3338
- SHA512 355d519fd418570ca452c518ee8047805807c2221a9c34bda8c725665bb124968bb885cbd286435d5a054c18af9f5277f662e6345239078019e3616d7bce71a4
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT3:w/ZFIjBzF/ZFIjBzPEUus3
- TLSH T141263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4496-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001c5d7-13.dat CryptoLocker_rule2 behavioral2/memory/5544-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5544-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000d00000001c5d7-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 5544 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 2026-07-28_45432d16e667e0b976f6c929c8d155ad_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 4496 wrote to memory of 5544 4496 2026-07-28_45432d16e667e0b976f6c929c8d155ad_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-28_45432d16e667e0b976f6c929c8d155ad_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-28_45432d16e667e0b976f6c929c8d155ad_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4496 -
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:5544
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:4904
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 9cc84a84048ec16a66b8ef555fa0d3847001fcc218ddc2632a0301f89ec62d63
- MD5 87780eee5b681e240064e0322dfc8783
- SHA1 cc1044d385fdf4a72a72490a5586b4f924a0a067
- SHA512 5afa51437cf256907e5a2542e9818e5a4a936480574f4942c596e072ed29cb8d1a99c2f1620ea50a57bf98a58f720fac78fdf8a33930de185574e77aada1199e
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTA:w/ZFIjBzF/ZFIjBzPEUusA
- TLSH T139263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH