Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 03:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_6407734299cd2c579da56a2d9e77d313_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_6407734299cd2c579da56a2d9e77d313_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-20_6407734299cd2c579da56a2d9e77d313_cryptolocker_elex.exe
- Size 34KB
- Sample260820-eb7dmayhkb
- SHA256 df4ea27f9a8fbc040ed15fcf246b20c48c32a9f84fefb23fddcaac703899686b
- MD5 6407734299cd2c579da56a2d9e77d313
- SHA1 11905ea08e234a6e65438b36e0c26041b58d4164
- SHA512 873e36a5fbdd0cf91eb985b6dffee0107c3fbb9844894cfbe43b6f6508e47a6059d3f7841c93e8a6511f9194b08a07846aac5bc799bbb55c0cdd69150f81f55c
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGOFc8:bG74zYcgT/Ekd0ryfjl
- TLSH T1A6F20735F7EA3826DE36AEF4A1F750B1773F7819791078DE08ABE74C84B2641991D00A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/4232-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4232-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb5-14.dat CryptoLocker_rule2 behavioral2/memory/3164-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3164-27-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3164 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 2026-08-20_6407734299cd2c579da56a2d9e77d313_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 4232 wrote to memory of 3164 4232 2026-08-20_6407734299cd2c579da56a2d9e77d313_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_6407734299cd2c579da56a2d9e77d313_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_6407734299cd2c579da56a2d9e77d313_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4232 -
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:3164
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 34KB
- SHA256 3c1c58ae992cfc5a2214334c50958dbe72c60cdf35b5d33a0cdbd1218a0bae0c
- MD5 bca3c0d507684374a1c0a0ca72a50cf9
- SHA1 8c32d344e974f950aab53080c6d4336af93757e4
- SHA512 093c6dc36adac98a4bff9f19bf9981bd0ca2742e75aa64c20572a69bf8f9cb14fa26bcca7bc5a46929014d2d3e43b1fa218f13cb20f30a33e69b785102cdd4c8
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGOFck:bG74zYcgT/Ekd0ryfjV
- TLSH T1AAF20835F7E63826DE36AEF4A1F750B1773F7819791078DE089BE74C88B2641991C40A
- MD5 SHA1 SHA512 SSDEEP TLSH