Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
11/08/2026, 05:09
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe
- Size 47KB
- Sample260811-ftdppsgm2z
- SHA256 e476f1ed742cd1c82bd0e838c188033406f698ad08c0c92e26706c4802f62305
- MD5 97312088eeb58ec742f0412a3a42a2c0
- SHA1 48d82c25179ad2af6fdbc49ecc1a73cd09b4a84f
- SHA512 f84ee7471cf177d10b7420163cd2e2aea0d97144bee42bcccb9803a09ea2bbf601ada39d665d700c9f4a0d7e8952b99ca13b7516ab41bc849b8c7b80dc743585
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhA:bgGYcA/53GAGgIvF7EC
- TLSH T1FD2321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/4296-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000024621-13.dat CryptoLocker_rule2 behavioral1/memory/2436-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2436-19-0x0000000008000000-0x000000000800A000-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-1-5-21-2937465464-4167303362-2236413517-1000\Control Panel\International\Geo\Nation 2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 2436 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 2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4296 wrote to memory of 2436 4296 2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-11_97312088eeb58ec742f0412a3a42a2c0_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4296 -
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:2436
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 c99d3b8ad8e9356500f77e8e6dfbde522fc022f2de5c46a596af7be10be9df94
- MD5 35e8ccac25250c540467b4fcd23a806e
- SHA1 84fce8ad0180844dadc327c2a959f1b90da9873e
- SHA512 d482664824ecaedd9646818da015c639615909cb1647ea28d634a474c4083fa122aa6d68c5a9fa2c4a0c28bbc09bf17cd9772ccaa1e529f36e03bb9371e311b4
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhG:bgGYcA/53GAGgIvF7Es
- TLSH T1312321387FE52932D37BDFB586F691C6B975B8223D16980D40CA43444833F66ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH