Analysis
- max time kernel
148s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
15/10/2026, 22:54
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-10-15_f52372d226fc6ecdcbc39b87723be07d_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-10-15_f52372d226fc6ecdcbc39b87723be07d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-10-15_f52372d226fc6ecdcbc39b87723be07d_cryptolocker_elex.exe
- Size 35KB
- Sample261015-2vybdsttct
- SHA256 16e04566ad5e1e57ff9f6433d184630f12d3bbd806c98a696b742203fa6e1aa1
- MD5 f52372d226fc6ecdcbc39b87723be07d
- SHA1 163e06a69944d01de294539148a0b514617dba18
- SHA512 6813c173f67a6042d835cb3a1ff4e901793b3150b857e1012244b89e1ee72f1e9697006db9de1e65bc5c3cebdc18de04721177ba38973b54243f2d5f36838f89
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVoGp6C0/zzodV7tkq4l8tFFxE2BodcAOjb823:btB9g/WItCSsA5dAXwr3BGub4PnPI
- TLSH T170F2B6347FE55E62D237C5B644F3E1C2AA66BD2275178A1EA2CFB3490973B02EC4091D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x000900000001b846-12.dat CryptoLocker_rule2 behavioral2/memory/5248-20-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5248-22-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5248 gewos.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname gewos.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain gewos.exe - 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 2026-10-15_f52372d226fc6ecdcbc39b87723be07d_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 996 wrote to memory of 5248 996 2026-10-15_f52372d226fc6ecdcbc39b87723be07d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-15_f52372d226fc6ecdcbc39b87723be07d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-15_f52372d226fc6ecdcbc39b87723be07d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:996 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:5248
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
- Size 35KB
- SHA256 043201f73419c4776bb97dc068445d118eb3956bcbf18e74b30aafe2415ecc1a
- MD5 cad6376de66b000bdfd383773a279627
- SHA1 22bd165eedb157d40e238ec925fc11185ec26c93
- SHA512 b2d132dda5aad641f81165a6dda5b47a7bbeaae398cf1b1ac1a435eb541cf4f72cafa2a6546cc95058269bac980277171524b0e981f2e989bf84598ae1a478b1
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVoGp6C0/zzodV7tkq4l8tFFxE2BodcAOjb82J:btB9g/WItCSsA5dAXwr3BGub4PnP6
- TLSH T1A6F2B5347FE55E62D237C5B644F3E1C2AA66BD2275178A1EA2CFB3490973B02BC4091D
- 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