Analysis
- max time kernel
149s - max time network
147s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
18/04/2026, 04:28
General
- Target 2026-04-18_7c9d5febdc4b64ce69f3e279af1cf8bb_amadey_coinminer_elex_remcos_smoke-loader.exe
- Size 576KB
- Sample260418-e343ksgw4s
- SHA256 5a8fd0a41deb8ea0ca1eb82a0844cf33574dd7aca52286084f2ec82124b4846f
Malware Config
Signatures
- Custom signatureUPX dump on OEP (original entry point) 9 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 17 IoCs
- UPX packed file 9 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\2026-04-18_7c9d5febdc4b64ce69f3e279af1cf8bb_amadey_coinminer_elex_remcos_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-18_7c9d5febdc4b64ce69f3e279af1cf8bb_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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\Syswow64\ab4b1bddC:\Windows\Syswow64\ab4b1bdd1⤵
- 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
ab4b1bdd
memory/3548-36-0x0000000002250000-0x000000000234E000-memory.dmp
memory/3548-35-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/3548-52-0x0000000002250000-0x000000000234E000-memory.dmp
memory/3548-51-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/3548-15-0x0000000002250000-0x000000000234E000-memory.dmp
memory/3548-18-0x0000000002250000-0x000000000234E000-memory.dmp
memory/3548-42-0x0000000002250000-0x000000000234E000-memory.dmp
memory/3548-14-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/3548-3-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/5020-40-0x00000000031A0000-0x000000000329E000-memory.dmp
memory/5020-34-0x00000000031A0000-0x000000000329E000-memory.dmp
memory/5020-33-0x0000000000B40000-0x0000000000BC9000-memory.dmp
memory/5020-49-0x0000000000B40000-0x0000000000BC9000-memory.dmp
memory/5020-50-0x00000000031A0000-0x000000000329E000-memory.dmp
memory/5020-0-0x0000000000B40000-0x0000000000BC9000-memory.dmp
memory/5020-12-0x0000000000B40000-0x0000000000BC9000-memory.dmp
memory/5020-58-0x00000000031A0000-0x000000000329E000-memory.dmp
memory/5020-64-0x00000000031A0000-0x000000000329E000-memory.dmp
memory/5020-66-0x00000000031A0000-0x000000000329E000-memory.dmp