Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
04/06/2026, 07:34
General
- Target _9a11fbeb0f04a6e5b4e8f3e29d4ee54f3680455091b28d2dc526715e6c1a5726.js
- Size 2.2MB
- Sample260604-jd7jmaa16t
- SHA256 9a11fbeb0f04a6e5b4e8f3e29d4ee54f3680455091b28d2dc526715e6c1a5726
Malware Config
Extracted
-
remcos
-
6.0.0 Pro
-
UDOK
-
macat433.duckdns.org:48214
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audio_folder
MicRecords
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audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
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connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
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delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-X5MFU3
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Suspicious use of SetThreadContext 1 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\_9a11fbeb0f04a6e5b4e8f3e29d4ee54f3680455091b28d2dc526715e6c1a5726.js1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command "& 'C:\Users\Admin\AppData\Local\Microsoft\Windows\00000000-2312dea3-bfad9718fc9c\Interface_LIB.ps1'"2⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\2ajgicfa\2ajgicfa.cmdline"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7F8B.tmp" "c:\Users\Admin\AppData\Local\Temp\2ajgicfa\CSC9C76E6A93A1410A8FBAF728CCA7FB3B.TMP"4⤵
-
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
Interface_LIB.ps1
2ajgicfa.dll
RES7F8B.tmp
__PSScriptPolicyTest_2mge3v5u.aot.ps1
2ajgicfa.0.cs
2ajgicfa.cmdline
CSC9C76E6A93A1410A8FBAF728CCA7FB3B.TMP
memory/3424-44-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-56-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-72-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-71-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-64-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-63-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-55-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-41-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-48-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-49-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-43-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-42-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-33-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-34-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-38-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3424-35-0x0000000000400000-0x0000000000480000-memory.dmp
memory/3892-5-0x0000000005280000-0x00000000052A2000-memory.dmp
memory/3892-32-0x00000000066E0000-0x00000000066E8000-memory.dmp
memory/3892-3-0x0000000004C40000-0x0000000004C50000-memory.dmp
memory/3892-1-0x0000000004C40000-0x0000000004C50000-memory.dmp
memory/3892-4-0x0000000005300000-0x000000000592A000-memory.dmp
memory/3892-15-0x0000000006100000-0x000000000611E000-memory.dmp
memory/3892-2-0x0000000004C90000-0x0000000004CC6000-memory.dmp
memory/3892-6-0x0000000005B60000-0x0000000005BC6000-memory.dmp
memory/3892-7-0x0000000005BD0000-0x0000000005C36000-memory.dmp
memory/3892-19-0x0000000006690000-0x00000000066AA000-memory.dmp
memory/3892-18-0x0000000007880000-0x0000000007EFA000-memory.dmp
memory/3892-14-0x0000000005C40000-0x0000000005F97000-memory.dmp
memory/3892-16-0x0000000006140000-0x000000000618C000-memory.dmp