Analysis
- max time kernel
149s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
09/10/2026, 15:00
General
- Target Notification BRI.js
- Size 1.2MB
- Sample261009-sdkjjay16p
- SHA256 4f6356b3a390f404083330ddfa4d891275c5ec89b2a6fe967370e7df103768c4
Malware Config
Extracted
-
remcos
-
7.3.1 Pro
-
Education
-
103.83.87.47:3838
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-8I7A5I
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
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.
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Suspicious use of SetThreadContext 1 IoCs
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 1 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 WriteProcessMemory 7 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Notification BRI.js"1⤵
- Reads the TCP/IP host and domain name from the registry
-
C:\Windows\system32\wscript.exewscript.exe1⤵
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe -NoPr -NonI -WindowStyle Hidden -C "[scriptblock]::Create([IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\52448.ps1')).Invoke()"1⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
52448.ps1
__PSScriptPolicyTest_yoyeymdd.fdv.ps1
memory/3168-16-0x00000000061B0000-0x00000000061CE000-memory.dmp
memory/3168-17-0x0000000006260000-0x00000000062AC000-memory.dmp
memory/3168-6-0x00000000058D0000-0x0000000005936000-memory.dmp
memory/3168-7-0x0000000005940000-0x00000000059A6000-memory.dmp
memory/3168-4-0x00000000052A0000-0x00000000058C8000-memory.dmp
memory/3168-15-0x0000000005B70000-0x0000000005EC4000-memory.dmp
memory/3168-2-0x0000000002BB0000-0x0000000002BC0000-memory.dmp
memory/3168-5-0x00000000051F0000-0x0000000005212000-memory.dmp
memory/3168-3-0x0000000004C30000-0x0000000004C66000-memory.dmp
memory/3168-19-0x000000000A860000-0x000000000AEDA000-memory.dmp
memory/3168-20-0x000000000A1A0000-0x000000000A1BA000-memory.dmp
memory/3168-21-0x000000000A1F0000-0x000000000A20A000-memory.dmp
memory/3168-22-0x000000000A430000-0x000000000A438000-memory.dmp
memory/3168-23-0x0000000002BB0000-0x0000000002BC0000-memory.dmp
memory/4416-24-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-25-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-26-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-27-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-28-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-29-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-32-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-33-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-34-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-36-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-37-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-38-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-39-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-40-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-41-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-42-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-43-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4416-44-0x0000000000400000-0x0000000000490000-memory.dmp