Analysis
- max time kernel
150s - max time network
150s - 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, 01:03
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_cee9381529a0309e83b39296e1fbd4dd_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_cee9381529a0309e83b39296e1fbd4dd_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_cee9381529a0309e83b39296e1fbd4dd_cryptolocker_elex.exe
- Size 29KB
- Sample260820-bem8daxcqd
- SHA256 af6b40b38cdf0f6d4129afd5da7752006b54cc628d0486ae8e2eb0ecf7d56bbf
- MD5 cee9381529a0309e83b39296e1fbd4dd
- SHA1 58d2320d389daf0cacaea3881d5a8ad600ef201b
- SHA512 614dc963c0c82e00273299be2676a0072a5d31f7826e81f177afadd42ce7d7e384646505053c3d237bce36e517ec491a7031d036587e043cf1aa9eaa708d2d46
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kH9rtmpRkp:bIDOw9UiaCHfjnE0S2kH9rk/g
- TLSH T14FD2E739BEE56832E1B7BB7554F39282AC747D523A24494E98CF73880931F66FC6210D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5752-9-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b00000001b844-13.dat CryptoLocker_rule2 behavioral2/memory/1708-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1708-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1708 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_cee9381529a0309e83b39296e1fbd4dd_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 5752 wrote to memory of 1708 5752 2026-08-20_cee9381529a0309e83b39296e1fbd4dd_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_cee9381529a0309e83b39296e1fbd4dd_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_cee9381529a0309e83b39296e1fbd4dd_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5752 -
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:1708
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 30KB
- SHA256 75e3374712ad6da981244cb2a558e307312a98e421531a494e1ae6be52f5b088
- MD5 f94f10a7866406df65456d29d732f367
- SHA1 17dcfefcb8f3cb188b9d5f1ec5aea7144d998073
- SHA512 4a5387c3029348f2c076acf3c9490d18839d07b9d9f8a093b992d5cd0625677e0f9d67cdd6a768b4327db1c11c29eac5120aea0bb4251f1a65f195b3d3fb60bb
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kH9rtmpRkOA:bIDOw9UiaCHfjnE0S2kH9rk/k
- TLSH T128D2E839BEE56832E277BB7554F39282AC747D523A24494E98CF73880931F66FC5220D
- MD5 SHA1 SHA512 SSDEEP TLSH