Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
23/04/2026, 02:56
Behavioral task
behavioral1
Sample
2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe
- Size 873KB
- Sample260423-dfapsagx4l
- SHA256 ebcbb35b9f555f577ea7ca62e362e40165eea6ad8894845d989e7337d934cbee
- MD5 f3fe03a0e618c56577f71fc3190b8b38
- SHA1 892c1946c1b26c3560939c8f00d8a21cc8cf40d2
- SHA512 36f18ea33e4aec7f83e818b9e4c933f65b77bfe067d19a1724f345cbb2c182eda6b75abe5cf4148f32d6eba98fffad01384460bf53fdbc0c347a11bca1985f90
- SSDEEP 12288:sSvO2x9mONvKRhLSFtsOkx2LIaeyk5FAQjU/Lik8CQ3uEW:fvO2xJKRh2kOkx2LFxNcUQPxW
- TLSH T1F0156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral2/memory/4360-0-0x0000000000F30000-0x0000000000FBC000-memory.dmp UPX behavioral2/files/0x000f000000027102-2.dat UPX behavioral2/memory/2900-4-0x0000000000EB0000-0x0000000000F3C000-memory.dmp UPX behavioral2/memory/4360-18-0x0000000000F30000-0x0000000000FBC000-memory.dmp UPX behavioral2/memory/2900-20-0x0000000000EB0000-0x0000000000F3C000-memory.dmp UPX behavioral2/memory/2900-34-0x0000000000EB0000-0x0000000000F3C000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2900 ef4d1d3a - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 1 114.114.114.114 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe Destination IP 2 223.5.5.5 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe Destination IP 19 114.114.114.114 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe Destination IP 20 223.5.5.5 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ef4d1d3a File created C:\Windows\SysWOW64\ef4d1d3a 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ef4d1d3a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ef4d1d3a -
resource yara_rule behavioral2/memory/4360-0-0x0000000000F30000-0x0000000000FBC000-memory.dmp upx behavioral2/files/0x000f000000027102-2.dat upx behavioral2/memory/2900-4-0x0000000000EB0000-0x0000000000F3C000-memory.dmp upx behavioral2/memory/4360-18-0x0000000000F30000-0x0000000000FBC000-memory.dmp upx behavioral2/memory/2900-20-0x0000000000EB0000-0x0000000000F3C000-memory.dmp upx behavioral2/memory/2900-34-0x0000000000EB0000-0x0000000000F3C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\31a628 ef4d1d3a File opened for modification C:\Windows\4aa510 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ef4d1d3a - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ef4d1d3a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" ef4d1d3a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ef4d1d3a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ef4d1d3a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ef4d1d3a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix ef4d1d3a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ef4d1d3a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ef4d1d3a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ef4d1d3a - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2900 ef4d1d3a 2900 ef4d1d3a 2900 ef4d1d3a 2900 ef4d1d3a 2900 ef4d1d3a 2900 ef4d1d3a 2900 ef4d1d3a 2900 ef4d1d3a 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe Token: SeTcbPrivilege 4360 2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe Token: SeDebugPrivilege 2900 ef4d1d3a Token: SeTcbPrivilege 2900 ef4d1d3a
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-23_f3fe03a0e618c56577f71fc3190b8b38_amadey_coinminer_elex_remcos_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
PID:4360
-
C:\Windows\Syswow64\ef4d1d3aC:\Windows\Syswow64\ef4d1d3a1⤵
- 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
PID:2900
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ef4d1d3a
- Size 873KB
- SHA256 46fd0403dea7aaabe4796136471b5f800c60f83756b99b32181cb4156cd8cb51
- MD5 f45e75ef6e984c14928fcef705c716a2
- SHA1 ff599377c04eef6e421bd27272ed8c10d675dce8
- SHA512 22470970494f514b3166460cf79f8773fcaa1ef0fbaae3963be2a4313dcec4beec278720b9264caae2026bb1340c7b9d2e6cf574c38ef07c2d64010d7f06a779
- SSDEEP 12288:ZSvO2x9mONvKRhLSFtsOkx2LIaeyk5FAQjU/Lik8CQ3uEW:gvO2xJKRh2kOkx2LFxNcUQPxW
- TLSH T181156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH