Analysis
- max time kernel
149s - max time network
136s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
28/05/2026, 19:53
General
- Target 2026-05-28_1fcf25b61ff81d27c35076452ad61366_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
- Size 1.1MB
- Sample260528-yl2exacv41
- SHA256 1414d88edc537b06501b5e3701ff86686f4f1de716ceabc3edb0f525cb7a890b
Score
9/10
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 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\2026-05-28_1fcf25b61ff81d27c35076452ad61366_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-28_1fcf25b61ff81d27c35076452ad61366_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\b7ac5b94C:\Windows\Syswow64\b7ac5b941⤵
- 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
b7ac5b94
memory/1320-0-0x0000000000270000-0x00000000002FC000-memory.dmp
memory/1320-10-0x0000000000270000-0x00000000002FC000-memory.dmp
memory/3924-4-0x0000000000F30000-0x0000000000FBC000-memory.dmp
memory/3924-11-0x0000000000F30000-0x0000000000FBC000-memory.dmp
memory/3924-16-0x0000000000F30000-0x0000000000FBC000-memory.dmp