Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
17/04/2026, 03:47
General
- Target 2026-04-17_699aed2db5f059e7f42889d06d9fd4fa_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
- Size 1.1MB
- Sample260417-echrnaew3n
- SHA256 b7cf61bc3de1d32d9abe62d598ff813cf0b7980a7f5e0c547cc0255926107fa9
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
- Detection of Cryptolocker Samples 1 IoCs
- UPX 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 15 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 9 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-17_699aed2db5f059e7f42889d06d9fd4fa_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-17_699aed2db5f059e7f42889d06d9fd4fa_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.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\ead88a00C:\Windows\Syswow64\ead88a001⤵
- 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
ead88a00
memory/4584-0-0x0000000000B50000-0x0000000000BDC000-memory.dmp
memory/4584-18-0x0000000000B50000-0x0000000000BDC000-memory.dmp
memory/4584-19-0x0000000001500000-0x000000000154A000-memory.dmp
memory/4584-20-0x0000000001360000-0x0000000001367000-memory.dmp
memory/4584-42-0x0000000001500000-0x000000000154A000-memory.dmp
memory/4992-4-0x0000000000E30000-0x0000000000EBC000-memory.dmp
memory/4992-23-0x0000000000E30000-0x0000000000EBC000-memory.dmp
memory/4992-22-0x00000000004C0000-0x00000000004C7000-memory.dmp
memory/4992-21-0x0000000000830000-0x000000000087A000-memory.dmp
memory/4992-56-0x0000000000E30000-0x0000000000EBC000-memory.dmp