Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/07/2026, 00:01
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-05_ce83e1299e8aacdf50ab616c55c00fb1_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-05_ce83e1299e8aacdf50ab616c55c00fb1_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
6 signatures
150 seconds
General
- Target 2026-07-05_ce83e1299e8aacdf50ab616c55c00fb1_cryptolocker_elex.exe
- Size 4.6MB
- Sample260706-aba8zagt5y
- SHA256 5fee359208d9b00f658f722cd7a3c5eee63ac9d0ad989abc390537d0112e7c00
- MD5 ce83e1299e8aacdf50ab616c55c00fb1
- SHA1 ee619c9a682e7b5bb87032f0671b3635cb4f76bd
- SHA512 899da9d86f506fb645a557758a3fad21d98b77f70b35f5bc5c345c208e99cc06d15001a4e15660211c6ac19cb947b3e509c16c9be87ea5770f0cc690f47d05b4
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTM:w/ZFIjBzF/ZFIjBzPEUusM
- TLSH T123263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3700-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00160000000118eb-13.dat CryptoLocker_rule2 behavioral2/memory/980-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/980-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x00160000000118eb-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 980 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 2026-07-05_ce83e1299e8aacdf50ab616c55c00fb1_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3700 wrote to memory of 980 3700 2026-07-05_ce83e1299e8aacdf50ab616c55c00fb1_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-05_ce83e1299e8aacdf50ab616c55c00fb1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-05_ce83e1299e8aacdf50ab616c55c00fb1_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3700 -
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:980
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 d763271692039620aa4470249b27a34c2c478475d387cca50b07ad6df44d5913
- MD5 02d10c25b0120df28e8bbbd1fcd61c26
- SHA1 bec6a5abdf25dacadd1e19e1d93cb93b602ae7bc
- SHA512 b9b41c4f52aadf90f96eb3261beaaf8741f14a0e8116221d055b786a6e76e87b450d8ae11a7b9751cf5bef0bc9ba4f9bd1c06ae49bc00b6f29e4cd566f36264b
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTJ:w/ZFIjBzF/ZFIjBzPEUusJ
- TLSH T191263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH