Analysis
- max time kernel
150s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
07/05/2026, 04:39
Behavioral task
behavioral1
Sample
2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe
- Size 576KB
- Sample260507-e92wssez5y
- SHA256 e23c603a21fcce10af82d878aafc7ac7370686d7dfeca3c93afd1b8011ab49e3
- MD5 41f15c1b463cf87f4227df232aa16365
- SHA1 c3a44a63f11caeebe15310e1350720a025a52bde
- SHA512 a101e2b48022510b857a7c7fb4c8d33714346fe10d9dfc568d52f9f5b5ecd546452f219f241d26a2784bea65abf6361b4aeb9307bca410e966330444bb73c6b5
- SSDEEP 12288:xqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3K:xjHPOSOkx2LFscUQPK
- TLSH T1EBC47C31E201C03AD1A74572C6FE0BAFA568BD24431562C7A3D479762FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureUPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral2/memory/5804-0-0x00000000009C0000-0x0000000000A49000-memory.dmp UPX behavioral2/files/0x000d00000002a8cf-2.dat UPX behavioral2/memory/6124-3-0x0000000000F60000-0x0000000000FE9000-memory.dmp UPX behavioral2/memory/5804-18-0x00000000009C0000-0x0000000000A49000-memory.dmp UPX behavioral2/memory/6124-23-0x0000000000F60000-0x0000000000FE9000-memory.dmp UPX behavioral2/memory/5804-36-0x00000000009C0000-0x0000000000A49000-memory.dmp UPX behavioral2/memory/6124-38-0x0000000000F60000-0x0000000000FE9000-memory.dmp UPX behavioral2/memory/5804-53-0x00000000009C0000-0x0000000000A49000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 6124 3ecf7bec - Unexpected DNS network traffic destination 6 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 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Destination IP 2 223.5.5.5 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Destination IP 24 114.114.114.114 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Destination IP 25 223.5.5.5 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Destination IP 64 114.114.114.114 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Destination IP 65 223.5.5.5 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\3ecf7bec 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3ecf7bec File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3ecf7bec -
resource yara_rule behavioral2/memory/5804-0-0x00000000009C0000-0x0000000000A49000-memory.dmp upx behavioral2/files/0x000d00000002a8cf-2.dat upx behavioral2/memory/6124-3-0x0000000000F60000-0x0000000000FE9000-memory.dmp upx behavioral2/memory/5804-18-0x00000000009C0000-0x0000000000A49000-memory.dmp upx behavioral2/memory/6124-23-0x0000000000F60000-0x0000000000FE9000-memory.dmp upx behavioral2/memory/5804-36-0x00000000009C0000-0x0000000000A49000-memory.dmp upx behavioral2/memory/6124-38-0x0000000000F60000-0x0000000000FE9000-memory.dmp upx behavioral2/memory/5804-53-0x00000000009C0000-0x0000000000A49000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\68d858 3ecf7bec File opened for modification C:\Windows\635dd8 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.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 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3ecf7bec - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3ecf7bec Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3ecf7bec Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3ecf7bec Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 3ecf7bec Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3ecf7bec Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3ecf7bec Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3ecf7bec Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 3ecf7bec Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3ecf7bec - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 6124 3ecf7bec 6124 3ecf7bec 6124 3ecf7bec 6124 3ecf7bec 6124 3ecf7bec 6124 3ecf7bec 6124 3ecf7bec 6124 3ecf7bec 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Token: SeTcbPrivilege 5804 2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe Token: SeDebugPrivilege 6124 3ecf7bec Token: SeTcbPrivilege 6124 3ecf7bec
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-07_41f15c1b463cf87f4227df232aa16365_amadey_coinminer_elex_remcos_smoke-loader.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-07_41f15c1b463cf87f4227df232aa16365_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
PID:5804
-
C:\Windows\Syswow64\3ecf7becC:\Windows\Syswow64\3ecf7bec1⤵
- 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:6124
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3ecf7bec
- Size 576KB
- SHA256 b83cb00140b0a068aed5f124697a2e9e92863fd13ef2e9b02008df2d6305ff84
- MD5 c4ed18c73f034283b4f0e64383a90e2b
- SHA1 961b727143424b320abeb485403dfda562dffd4e
- SHA512 8214752bd2bac294ebe4f9a12049eaa75c455e34d4f4ca24570c6717c01c7cb7a02745dde7412a23f4865661e41c46727a13482c6ab06042f6fcdd03592e24e1
- SSDEEP 12288:hqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3K:hjHPOSOkx2LFscUQPK
- TLSH T119C47C31E201C03AD1A74572C6FE0BAFA568BD24431562C7A3D479762FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH