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
29/10/2026, 19:04
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-10-28_c589b773b4ec16d987283673eb6fe199_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-10-28_c589b773b4ec16d987283673eb6fe199_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-10-28_c589b773b4ec16d987283673eb6fe199_cryptolocker_elex.exe
- Size 71KB
- Sample261029-xrbwrssvcx
- SHA256 ec3052c3c81ce77499113a494b546ba75a61c032562af578357b7750d4f2e439
- MD5 c589b773b4ec16d987283673eb6fe199
- SHA1 ff412a27d4606b512b1f448a1a87e2d17e2c692e
- SHA512 489dd62724986d1bc587f7ecc9ae2ca541ccd27af2d0aa365a0c4918079bd37a634a54711ee70aebe53cfd435ef240a94debeca0f1e0f45e394d6d48addbd3d4
- SSDEEP 768:be89g/WItCSsAGjXa7IESOcWNEhxQYsloEUYdW2EtwDsznqHDe9N8oLokd:be89g/xtCSKxcNGQYAoafewIbQSftokd
- TLSH T1DD63D6357FD50B72D37342B215F7A1C2BA2ABC727616CA5D908EA30D0173F19A9B1A0D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/files/0x000c000000019cb7-11.dat CryptoLocker_rule2 behavioral2/memory/2372-20-0x0000000000400000-0x000000000040D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2372-22-0x0000000000400000-0x000000000040D000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2372 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 2026-10-28_c589b773b4ec16d987283673eb6fe199_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 6076 wrote to memory of 2372 6076 2026-10-28_c589b773b4ec16d987283673eb6fe199_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-28_c589b773b4ec16d987283673eb6fe199_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-28_c589b773b4ec16d987283673eb6fe199_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6076 -
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:2372
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
- Size 71KB
- SHA256 4add3dd0f1f114abec594f71a73209a77815c3b161afeff7678c91f78ccd4d5d
- MD5 aeee55623ab96f518a6c44526ee75c5e
- SHA1 4e22e72002ddff51482f4a7a6e59abdd47e99240
- SHA512 f66580a94b1609034d2e15539992f743f990cdb41424ddd45581fa40ab00d7c3a7b80449833c1f97068734a94942439617ac64b8a45d606d867e06c18a924289
- SSDEEP 768:be89g/WItCSsAGjXa7IESOcWNEhxQYsloEUYdW2EtwDsznqHDe9N8oLok9:be89g/xtCSKxcNGQYAoafewIbQSftok9
- TLSH T1B863D6357FD50B72D37382B215F7A1C2BA2ABC727616C95D908EA30D0133F19A9B1A0D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\gewosik.exe
- Size 183B
- SHA256 3c44d7d26d938238d723f3b15963930162071c823200c2e0f6fa279619cca044
- MD5 7377ab12a1e9615919d3d819236b8acc
- SHA1 a5941b5d568248df0ae5ceed49ea393d50886db8
- SHA512 d1a67efd060de6d918c49332b5b1acdaac660ee253b4e25cbed90ff27c63b05b111b820697d605e17eadeff0c111e4832f5bba0501301357a7ff0fc76d62759d
- TLSH T107C0C0F28C10DC67441033628C41322666277D08EE401C30C0C935CEC6F0B721D01500
- MD5 SHA1 SHA512 TLSH