Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
10/09/2026, 22:54
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe
- Size 1.0MB
- Sample260910-2vpdgshp3v
- SHA256 c85168f7024486abc6be9cfaa4366663d290b8ab94ee157b4e2d424bb6e0b9b6
- MD5 d882b32734d6c12a5a8fc0a49cc95956
- SHA1 58baba4af20e560c759b1a6d16206104ec027f90
- SHA512 0556e971f7b3627989e9cae3d9f8e8959ca270a8ea18ca9086c30b3513c9161788e959a15491f6fc517d831ccb17db82aa3922274f43a8ab0efb48a34b7e9bc5
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq/:bGbvflT/ZFIjBzhxwOgXKarY1iBy
- TLSH T17F2509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/1864-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000024410-13.dat CryptoLocker_rule2 behavioral1/memory/4184-17-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4184-25-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation 2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4184 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1864 wrote to memory of 4184 1864 2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-09_d882b32734d6c12a5a8fc0a49cc95956_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1864 -
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:4184
-
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 fc483a9699b0c5efae52bc9db47561e90017986ef18511b7891f3686049fa45a
- MD5 67c476367444f03de346bc3ec1111663
- SHA1 bc80a960f7a0cec7d0d4b4011ed591707f7ec2ef
- SHA512 1b0f9f680beec7a4ef7e446769032643b6a583189a79495642d8769d2e81a18f008ce7f9da376af0696d00a538b03cf92bed846adc5902874f9c9a1eb30133e7
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqQ:bGbvflT/ZFIjBzhxwOgXKarY1iBR
- TLSH T1502509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH