Analysis
- max time kernel
148s - max time network
122s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/08/2026, 20:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-07_949abe9962e6a18b17906e103212df84_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-07_949abe9962e6a18b17906e103212df84_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-07_949abe9962e6a18b17906e103212df84_cryptolocker_elex.exe
- Size 67KB
- Sample260807-y54z5sshmg
- SHA256 5da868dffc079690696a13c1b1b7de8119c67fc175bd09744a37f17a5b1fc20b
- MD5 949abe9962e6a18b17906e103212df84
- SHA1 6020fcfe85257b5ed3474859bb8264d39cdcfe87
- SHA512 b77a45824df09a46ffafb95baf700e4607bd19275cfa775f827c459c469e6f3ca510f67a8e1295e7c629a5be52ca3097ecfc7b85f8f479d7f4972fa36c62de46
- SSDEEP 768:bYv9g/WItCSsAGmXWhaI9cZnIe9N0hunrknljKrCY1K3orW+/H:bYv9g/xtCSDx6A7f1rksrx1ZrW2H
- TLSH T1BC6353387FE51A72E337CAB685F791C2B935B8227906991D50CF53480833F56EDA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x000c000000016cd6-13.dat CryptoLocker_rule2 behavioral2/memory/1660-20-0x0000000000400000-0x000000000040C000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1660-31-0x0000000000400000-0x000000000040C000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1660 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 2026-08-07_949abe9962e6a18b17906e103212df84_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 4240 wrote to memory of 1660 4240 2026-08-07_949abe9962e6a18b17906e103212df84_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-07_949abe9962e6a18b17906e103212df84_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-07_949abe9962e6a18b17906e103212df84_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4240 -
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:1660
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
- Size 67KB
- SHA256 438f7cbaa8ff8331baefc259b68aec8d1d7fd66fc347902b3f202403cb29af3b
- MD5 0e5fc4b943343374cf0bd0038d1d40e7
- SHA1 6b68c68df9ce966d1317ea72d2cf629fe3a140cd
- SHA512 3262c48842744356f420da6846b2e5325197aea3094ae0f31e48f7dc9e3831c7203f80ee16984c6da91ad7ad6163da7ad7a7443e2975e897bf8325337cf0d78d
- SSDEEP 768:bYv9g/WItCSsAGmXWhaI9cZnIe9N0hunrknljKrCY1K3orW+/MP:bYv9g/xtCSDx6A7f1rksrx1ZrW2M
- TLSH T1496353387FE51A72E337CAB685F791C2B935B8227906991D50CF53480833F56EDA1A0E
- 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