Analysis
- max time kernel
148s - max time network
147s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
08/08/2026, 08:54
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe
- Size 33KB
- Sample260808-ktwbzaxtct
- SHA256 3bfa42aeabdcfaaeef0b2b9e948f0433e9c8ee27a2d6eca4d796f5f87f087482
- MD5 61c0413e4302a242f5d4788455f18878
- SHA1 3a5db7ef29f4d33320a3d618bcb97bc69de20ee9
- SHA512 6deb8b486333dd95fc07050e1bb573eb9064006088b548ba12b3562e58f88098bf154e0ae11a488087d6612c4a2ee9c5563fbee5ff5b95d072113c0c825e8eb3
- SSDEEP 384:budbtjL8L1iE0eBhkzPbKAaomTqC9Mwf4fjDAg5:bGNQIE0eBhkL2Fo1CCwgfjkg5
- TLSH T1EDE24C22F4473CA2E47B0F3428BB612A61BE7DE037284BCFB99E775DBB712516011196
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5952-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0005000000016b47-13.dat CryptoLocker_rule2 behavioral2/memory/5640-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5640-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5640 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 2026-08-08_61c0413e4302a242f5d4788455f18878_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 5952 wrote to memory of 5640 5952 2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5952 -
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:5640
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\pissa.exe
- Size 33KB
- SHA256 e39015d5198e7d3758afaecad7287235f2ac633ddcc9710dc475c3242076315e
- MD5 1e0ae548d58049eb5ab0d49d1dace08d
- SHA1 4c55c6013115c593a57f25efa4abbe1ea10dbc8a
- SHA512 6b05508e9d79cba1495c28c5b8380cf04872b84cbad2d384e7d307e23fe42bf8d5c540c874bf760f6e62c6126247b92e8617a49d67311721d6a72b9f9ba7a90e
- SSDEEP 384:budbtjL8L1iE0eBhkzPbKAaomTqC9Mwf4fjDAg2J:bGNQIE0eBhkL2Fo1CCwgfjkg0
- TLSH T119E24C32F4873CA2E47B0F3428BB611A65BE7DE037284BCFB99E775CAB712516011196
- 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