Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
03/05/2026, 12:11
General
- Target 2026-05-03_642b755d3f023bfbfb33f19aa145104e_amadey_coinminer_elex_remcos_smoke-loader.exe
- Size 576KB
- Sample260503-pcwcvsgy4x
- SHA256 291027d6267f8242fc0572940fc3112054d3811f3aaa4f952ee39cf22c68c110
Malware Config
Signatures
- UPX dump on OEP (original entry point) 8 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 8 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
- Modifies system certificate store 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-03_642b755d3f023bfbfb33f19aa145104e_amadey_coinminer_elex_remcos_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-03_642b755d3f023bfbfb33f19aa145104e_amadey_coinminer_elex_remcos_smoke-loader.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\Syswow64\5e5b65cfC:\Windows\Syswow64\5e5b65cf1⤵
- 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
5e5b65cf
memory/3256-4-0x0000000000DC0000-0x0000000000E49000-memory.dmp
memory/3256-12-0x0000000000DC0000-0x0000000000E49000-memory.dmp
memory/3256-22-0x0000000000DC0000-0x0000000000E49000-memory.dmp
memory/4444-0-0x0000000000520000-0x00000000005A9000-memory.dmp
memory/4444-10-0x0000000000520000-0x00000000005A9000-memory.dmp
memory/4444-21-0x0000000000520000-0x00000000005A9000-memory.dmp
memory/4444-34-0x00000000034F0000-0x00000000035EE000-memory.dmp
memory/4444-41-0x00000000034F0000-0x00000000035EE000-memory.dmp
memory/4444-49-0x0000000000520000-0x00000000005A9000-memory.dmp
memory/4444-50-0x00000000034F0000-0x00000000035EE000-memory.dmp