Analysis
- max time kernel
149s - max time network
169s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
04/05/2026, 07:54
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe
Resource
win11-20260130-en
5 signatures
150 seconds
General
- Target 2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe
- Size 48KB
- Sample260504-jrt6fsev5x
- SHA256 6155dfff1a176310eb9ad2a67c50d5a26168cbd4b3fd219872f6d6dc7e8c5346
- MD5 fac6cec64508958f72048f1b06ed7165
- SHA1 fa4c04a32d4c87da19cb2ee4c87f51d6aa8bcbd4
- SHA512 3e5f8deedaee58840d4cf06169e7d6b48ae69a46dcc3c501d8bbf81031ce110a23f3321e912d9f5909fc862b84b0d2f63007ff77b92a81dee868ef0aec29e47e
- SSDEEP 768:bxNQIE0eBhkL2Fo1CCwgfjOg9Uy0+1o80hKUAjRhMNmy1fHC:bxNrC7kYo1FxfFWhKU82ffi
- TLSH T153230939BDD61C72D37B8F7584F360C7A5B9B8123D15898E54CA138D0C26B22ED6125E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/436-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000002a8d2-13.dat CryptoLocker_rule2 behavioral2/memory/2216-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2216-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2216 pissa.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 2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language pissa.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 436 wrote to memory of 2216 436 2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:436 -
C:\Users\Admin\AppData\Local\Temp\pissa.exe"C:\Users\Admin\AppData\Local\Temp\pissa.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2216
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\pissa.exe
- Size 48KB
- SHA256 592c6280dc1ca3aa9a5f69b124a7cc5ef26e55ba07fa10754da2d417403d210c
- MD5 b086458cdc1e1f12559e250beb7ab858
- SHA1 ce2fabc4ad988ef87eab0e87cf9454e4faa90b38
- SHA512 26918eec7f2a1fcb07894daf2874e91eaeb58e66c098693a10af36c7ef88aefd9305537258ec0a088ad2145eb07a4c87a1e459629a3735a5bdaf1f20075a0c08
- SSDEEP 768:bxNQIE0eBhkL2Fo1CCwgfjOg9Uy0+1o80hKUAjRhMNmy1fHx:bxNrC7kYo1FxfFWhKU82ffR
- TLSH T1F9230939BDD51C72E3BB8F7584F360C7A5B9B8123D15898E54CA13890C26F22ED6125E
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\pissec.exe
- Size 114B
- SHA256 6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
- MD5 e89f75f918dbdcee28604d4e09dd71d7
- SHA1 f9d9055e9878723a12063b47d4a1a5f58c3eb1e9
- SHA512 8df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0
- TLSH T1EEB092DDBC61E48018E535511EA3B60D146A22EBB9018B4018C00836A96035F8D0AAC5
- MD5 SHA1 SHA512 TLSH