Analysis
- max time kernel
149s - max time network
132s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
29/05/2026, 12:33
General
- Target 2026-05-29_b285d792da52be67cc74025435a3b6d2_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe
- Size 832KB
- Sample260529-prhejsbx4y
- SHA256 fad66ca4f7ef8db59c441f4094ec0eed5f5817d9bcc55bd48984ed040a7af833
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
- Custom signatureDetection of Cryptolocker Samples 1 IoCs
- Custom signatureUPX dump on OEP (original entry point) 6 IoCs
- Executes dropped EXE 1 IoCs
- Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Drops file in System32 directory 5 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Windows directory 2 IoCs
- 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.
- Modifies data under HKEY_USERS 8 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-29_b285d792da52be67cc74025435a3b6d2_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-29_b285d792da52be67cc74025435a3b6d2_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\Syswow64\1ca7075C:\Windows\Syswow64\1ca70751⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
1ca7075
memory/4028-4-0x0000000000E60000-0x0000000000EEC000-memory.dmp
memory/4028-11-0x0000000000E60000-0x0000000000EEC000-memory.dmp
memory/4028-16-0x0000000000E60000-0x0000000000EEC000-memory.dmp
memory/4048-0-0x0000000000E30000-0x0000000000EBC000-memory.dmp
memory/4048-10-0x0000000000E30000-0x0000000000EBC000-memory.dmp