Analysis
- max time kernel
148s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 04:18
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_33851a63bb7ddb1962d75db084a39ca9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_33851a63bb7ddb1962d75db084a39ca9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_33851a63bb7ddb1962d75db084a39ca9_cryptolocker_elex.exe
- Size 39KB
- Sample260802-ew4s8sdj8w
- SHA256 e3ac9effca33c07484a044cd4dc4935ae2aa78be3e4d00aa1f08cef1652920e8
- MD5 33851a63bb7ddb1962d75db084a39ca9
- SHA1 5e7e00ab9b920e29d6fae329ed744d967644d659
- SHA512 5128f827c099572e19332dd5d7bc0f6427e541432abc3bbc176967cd63f237d089743bce24fffd06aca9c987b01daf8d93eb95e2d96e8082871569eb8b303673
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVoGp6C0/zzodV7tkq4l8tFFxE2BodcAOjb829:btB9g/WItCSsA5dAXwr3BGub4PnPXHm
- TLSH T1830373347FE55A72D377C6B644F3E1C2A976BC227916DA1D91CEA3480833B02EC90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000600000001b867-13.dat CryptoLocker_rule2 behavioral2/memory/3104-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3104 gewos.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 2026-08-01_33851a63bb7ddb1962d75db084a39ca9_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language gewos.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2096 wrote to memory of 3104 2096 2026-08-01_33851a63bb7ddb1962d75db084a39ca9_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_33851a63bb7ddb1962d75db084a39ca9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_33851a63bb7ddb1962d75db084a39ca9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3104
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
- Size 39KB
- SHA256 7601805b16374f8b091357caf358d63310c7501d4abd25ac1398f0cef64f1a43
- MD5 da55e3340ccbd3218a1b70a81399c5f1
- SHA1 0d3e5975109e4492379caf144c5e3033c77345b0
- SHA512 daacfdf61597191b6c0134258e23c049e772bf273f06d7056da6f9fbf86fc4753a876b439a6247d459765a65d87b7f486e004ee17297607cdbf8d3862ddac539
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVoGp6C0/zzodV7tkq4l8tFFxE2BodcAOjb82Z:btB9g/WItCSsA5dAXwr3BGub4PnPXHy
- TLSH T1A90373347FE55A72D377C6B645F3E1C2A976BC227916DA1D91CAA3480833B02EC90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\gewosik.exe
- Size 4B
- SHA256 042aea10a0f14f2d391373599be69d53a75dde9951fc3d3cd10b6100aa7a9f24
- MD5 6de9439834c9147569741d3c9c9fc010
- SHA1 38170c08cb458fd4879c34b6f608294c50312bbb
- SHA512 be665179a17ceb7800fa02e7f44c9bcac7cc2715057c3c9e534cac6346f65a71996850dcef24082ea70ad550bc390221d10b80512bfa1b5b9e390d68e69ac98a
- MD5 SHA1 SHA512