Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 11:39
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_a808c4ea9b0d70a03ef2806ab76555d9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_a808c4ea9b0d70a03ef2806ab76555d9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_a808c4ea9b0d70a03ef2806ab76555d9_cryptolocker_elex.exe
- Size 36KB
- Sample260820-nsn32sda33
- SHA256 cb01ee00646030597adb14b2071b4cb830a51e90a4708de5974994b751a18d21
- MD5 a808c4ea9b0d70a03ef2806ab76555d9
- SHA1 b70f6957abce70b2f280997bd7c3e548af1a2ac7
- SHA512 8086dd2ec41cb43fc0e592f76fbcc38c0541a27c2e69f3d83fed7c5d1b98ef3752e5e666ce977e625f12ca66c368a8f25b9c9cfbea919800b4fa3de64f3709df
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvaz+K/:bdDOw9Uiaw8fjR0STX73OBqgaz+K/
- TLSH T179F263387EE56972E37BEB7585F381C2A874B8127D15890E94CF67440833F62EC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000a000000011371-13.dat CryptoLocker_rule2 behavioral2/memory/1272-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 6056 lossy.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_a808c4ea9b0d70a03ef2806ab76555d9_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1272 wrote to memory of 6056 1272 2026-08-20_a808c4ea9b0d70a03ef2806ab76555d9_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_a808c4ea9b0d70a03ef2806ab76555d9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_a808c4ea9b0d70a03ef2806ab76555d9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:6056
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 36KB
- SHA256 803e3faec6fb6e244b3decde20f675db42766d1e1eb5dfacbe39b60b99bbcee2
- MD5 6e6c3d93ccd488b9a669939196c57a0b
- SHA1 79b80fc9815aca786de224125504ef5c647171d7
- SHA512 2201b0156c2767f040d1d424fe7be349f12ad991305edd3199c8224beff90207c1c2b0c5d35dfc6d5eeee7ea7de85ccf64ebdc521229cc7060beb05b56fdc17e
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvaz+KW:bdDOw9Uiaw8fjR0STX73OBqgaz+KW
- TLSH T19AF263387EE56972E37BEB7585F381C6A874B8127D15890E94CF67440833F62EC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH