Analysis
- max time kernel
149s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
27/07/2026, 04:01
General
- Target 3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe
- Size 330KB
- Sample260727-elf97ahb59
- SHA256 3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451
Malware Config
Extracted
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remcos
-
7.2.1 Pro
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RemoteHost
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130.12.182.113:2404
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audio_folder
MicRecords
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audio_path
ApplicationPath
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audio_record_time
5
-
connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
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hide_keylog_file
false
-
install_flag
true
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keylog_crypt
false
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keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-EFSCUH
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"C:\Users\Admin\AppData\Local\Temp\3eca2d75b0cfc8e13590a9d2e41691863dd3c7d3fe506f3ebf4c5bdacfd21451.exe"3⤵
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-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"5⤵
- Executes dropped EXE
-
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
remcos.exe
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
595CD0DCED5F6DE43A9C77C525C44511
DDE8B1B7E253A9758EC380BD648952AF_DF1A6565DCD908C2FD1C90E4018E7B7A
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
595CD0DCED5F6DE43A9C77C525C44511
DDE8B1B7E253A9758EC380BD648952AF_DF1A6565DCD908C2FD1C90E4018E7B7A
judaistic.txt
mallies.hem
playlets.txt
polit.ini
stumpe.txt
udrejsetilladelse.ter
unreverberating.ron
Dollbeer.txt
Networking.jpg
Opuntiaceae3.bay
Rullebjlker.ini
capitalizing.txt
csarismen.jpg
dampishly.fug
dikotomien.txt
formatindstillingens.nik
Dagligvarehandlen140.jpg
Stencillers
System.dll
memory/1812-22-0x0000000004FD0000-0x00000000081F1000-memory.dmp
memory/1812-23-0x0000000010004000-0x0000000010005000-memory.dmp
memory/2200-29-0x0000000001760000-0x0000000004981000-memory.dmp
memory/2200-38-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2200-28-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2200-24-0x0000000001760000-0x0000000004981000-memory.dmp
memory/2200-44-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2200-81-0x0000000001760000-0x0000000004981000-memory.dmp
memory/2652-100-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-95-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-101-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-102-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-103-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-104-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-105-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-106-0x0000000000470000-0x0000000001756000-memory.dmp
memory/2652-107-0x0000000000470000-0x0000000001756000-memory.dmp