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
09/08/2026, 00:05
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_c7d40b994bfe42c6397f130d3a169829_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_c7d40b994bfe42c6397f130d3a169829_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-08_c7d40b994bfe42c6397f130d3a169829_cryptolocker_elex.exe
- Size 36KB
- Sample260809-adpt5ser6s
- SHA256 aabbdf6a92f1d14ddf063f662ec1e8077e9033caf68fb87249af7b87a762b3f6
- MD5 c7d40b994bfe42c6397f130d3a169829
- SHA1 57ccf7cf9b473574979e66c1eebd8719f6b83bb4
- SHA512 843dc8c7e0f9492d4098c48395d727e42a4b874e6e4ec41e7e5a9f1dcf13d32a794689105d4def02bcfcdf7c617b22f64e659d5eb79704133749ab188a225a62
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflNGesjw:bG74zYcgT/Ekd0ryfjWlNGvw
- TLSH T1C5F2D435FBEA3822DA3BAEF491F640F1BB3F7819791078CE049BE34D4872611995D109
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/4900-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4900-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb8-14.dat CryptoLocker_rule2 behavioral2/memory/4400-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4400-21-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4400 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 2026-08-08_c7d40b994bfe42c6397f130d3a169829_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 4900 wrote to memory of 4400 4900 2026-08-08_c7d40b994bfe42c6397f130d3a169829_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_c7d40b994bfe42c6397f130d3a169829_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_c7d40b994bfe42c6397f130d3a169829_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4900 -
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:4400
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 36KB
- SHA256 2ad517ac4744e2a9517460da91a4d145a40cf87b299071a08c1015b087cbf140
- MD5 03519efaf2f192fefa2e3db58f382faa
- SHA1 f6b9b9b548fcc9257249ecbb13ca350826c0fe04
- SHA512 43aba376754fd57213dca9eba506f212fcc6a72c98a3f5eab585dc27e2bea8aa3db89cf15a1bd02570a410a8c2ba8adff4f495241e73445035f3f3235f6f7541
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuaBflNGesjm:bG74zYcgT/Ekd0ryfjWlNGvm
- TLSH T17C03D535FBEA3822DA3BAEF491F640F1BB3F7819791078CE049BE34D4872611995D509
- MD5 SHA1 SHA512 SSDEEP TLSH