Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 08:24
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-04_0f428e1b15a1007e17d5075504ecfeca_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-04_0f428e1b15a1007e17d5075504ecfeca_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-04_0f428e1b15a1007e17d5075504ecfeca_cryptolocker_elex.exe
- Size 4.6MB
- Sample260804-kanssagb22
- SHA256 8da5b6a023dc7d90c33e573ae9fe6a357bd351cbb5c572eab941a6da485cc4b1
- MD5 0f428e1b15a1007e17d5075504ecfeca
- SHA1 0e908aacca80601cb1659ca7165cbd4ad33d490c
- SHA512 92afbe4f2bd6a62a27d808a5a09e56aa21a9576dcad6bd5df670c111583a123357c00c6a1d4bccbb2783b345f833ad75fb82186e52ea523413da921956914f7f
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTi:w/ZFIjBzF/ZFIjBzPEUusi
- TLSH T1F2263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2400-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001400000001c462-13.dat CryptoLocker_rule2 behavioral2/memory/3484-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3484-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x001400000001c462-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 3484 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 2026-08-04_0f428e1b15a1007e17d5075504ecfeca_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 2400 wrote to memory of 3484 2400 2026-08-04_0f428e1b15a1007e17d5075504ecfeca_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-04_0f428e1b15a1007e17d5075504ecfeca_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_0f428e1b15a1007e17d5075504ecfeca_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400 -
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:3484
-
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 301df29de49b63652cf5ac59f7705bac65b1c4ed49dd8f79e831bd786fe23fdd
- MD5 33d9486a93bdeca94c00537a59e5d0f3
- SHA1 2530e960141bbec0ac5bc7e92486f43e475402c9
- SHA512 1f71ca47a9e6ad9c26db0638a3fb8e4a564f313fef0e4cfdaa85ea32ab7a561d0155de0b3efd2ac401a84acdcbd90cf5bc620585cd6d989d25e8ac1b406a8d0e
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTr:w/ZFIjBzF/ZFIjBzPEUusr
- TLSH T153263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH