Analysis
- max time kernel
149s - max time network
125s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
01/06/2026, 07:29
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-06-01_8872255b14316b55fab2799849d55e9b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-01_8872255b14316b55fab2799849d55e9b_cryptolocker_elex.exe
Resource
win11-20260513-en
5 signatures
150 seconds
General
- Target 2026-06-01_8872255b14316b55fab2799849d55e9b_cryptolocker_elex.exe
- Size 40KB
- Sample260601-jbcapsex8s
- SHA256 ab85b8b31f1b97c30b3d9ea5a505f46c202db75b1bc8dad123058341f037b090
- MD5 8872255b14316b55fab2799849d55e9b
- SHA1 7008acba671d38dc574ad90147ac2c37004928be
- SHA512 a122fef71ccc8b001c05def6195b9bb8026686a529787295d091f693760f047e73b169ade8147de6b6f76e03431c1a0630dec01100ebe21f96b0510542576844
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVoGp6C0/zzodV7tkq4l8tFFxE2BodcAOjb82y:btB9g/WItCSsA5dAXwr3BGub4PnPXHSQ
- TLSH T1971373347FE55A72D377C6B645F3E1C2A976BC227916DA1D91CEA3480833B02EC90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x002800000002b2c0-13.dat CryptoLocker_rule2 behavioral2/memory/2508-19-0x0000000000400000-0x0000000000408000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2508 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 2026-06-01_8872255b14316b55fab2799849d55e9b_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 2984 wrote to memory of 2508 2984 2026-06-01_8872255b14316b55fab2799849d55e9b_cryptolocker_elex.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-01_8872255b14316b55fab2799849d55e9b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-01_8872255b14316b55fab2799849d55e9b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984 -
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:2508
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
- Size 41KB
- SHA256 963dbdb3d5bbff9bbe11a26fc1b8a36222980f4886d9f0046e87bfe4606c3fa2
- MD5 3269bdb4847579ddb7683c09b4d136d7
- SHA1 3467201ee8cd70ee7f6fc158a100f3acc979e077
- SHA512 1f1c03ebe901390ee0b057e7bf18bb846824a2645c916e1870b44b535c3856eb0bc94df0eb873108fa76d35058105086a2feb0f3d4da0b5ebb75f6daa3140405
- SSDEEP 384:btBYQg/WIEhUCSNyepEjYnDOAlzVoGp6C0/zzodV7tkq4l8tFFxE2BodcAOjb82Q:btB9g/WItCSsA5dAXwr3BGub4PnPXHSi
- TLSH T1D81372347FE55A72D377C6B645F3E1C2A976BC227916DA1D91CEA3480833B02EC90A1D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\gewosik.exe
- Size 184B
- SHA256 849b1d83457eb210e3f4502416cce50b5dc447d74ea9a4aa3796e5a3b07678ee
- MD5 8afd74f318942344a5dad3bf2924c8f1
- SHA1 7642a9779abd7a1541c88e27b1b50f3070410a09
- SHA512 9cfe15343f88fa5570bcabd96a3a5b342a4b5f7196fd2a0d5e4bb4bc007f2124443f92d07ac6baf96e658c7b96687131598faf5fd9599add561c9789f9197ac3
- TLSH T1F8C080F6D9548C5F292537129CA3B3165561AF08DEC05C30D5C539D8CFF4F625E11A54
- MD5 SHA1 SHA512 TLSH