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
05/09/2026, 22:18
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-03_a80056aad68b58db4b46f2f5832639f9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-03_a80056aad68b58db4b46f2f5832639f9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-03_a80056aad68b58db4b46f2f5832639f9_cryptolocker_elex.exe
- Size 1.0MB
- Sample260905-18aa2sap8x
- SHA256 3324c45f5880d9783d5c2a44a401f4b97674fd0dd1db6505d199af75950c1dbe
- MD5 a80056aad68b58db4b46f2f5832639f9
- SHA1 6bb7178eff606119d7f7a8ca59a56f75db7af56f
- SHA512 62323e554f26b904c8a1603d99088b3be730b024c17630bfa67d9d5ad8237e711309e657422690a2c958048b5a7e316f027832b736dfe9f9b3c117ff31c526ed
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqf:bGbvflT/ZFIjBzhxwOgXKarY1iBK
- TLSH T1A52509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5564-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000800000001b1d0-13.dat CryptoLocker_rule2 behavioral2/memory/4136-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4136-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4136 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 2026-09-03_a80056aad68b58db4b46f2f5832639f9_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 5564 wrote to memory of 4136 5564 2026-09-03_a80056aad68b58db4b46f2f5832639f9_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-03_a80056aad68b58db4b46f2f5832639f9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-03_a80056aad68b58db4b46f2f5832639f9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5564 -
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:4136
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 420526a1b198861d52e8c612647f66e18eb684ea3e9f00114fa48b052c302d56
- MD5 448601399d0ee4640a5862d4acaab2b2
- SHA1 7dff4f0843c09a40517138a3dfa6aefce48e8f0c
- SHA512 9cbc04b4caf5e4816c9871d10213b5e32c2af6317fe8111c9a18a57412e92c519ae16cc4dc910c4c962a379739e32f583ec76817902225b4f1b1c5debf04ba8c
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqd:bGbvflT/ZFIjBzhxwOgXKarY1iBE
- TLSH T1022509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH