remcos | 931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 15:04

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General

Target

931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
Size

1.2MB
MD5

96d2106a3a6f64335ef5777aad854e50
SHA1

589ed8bfb973cd55162d021923ac35d2a0013758
SHA256

931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726
SHA512

3cd9920e070a2414ef25cbab7d00a3f3243d9f2a9504c59d140da4ca10e35f283276013c12ef75900152739ff52237b6881e6d81e07685e0a1ca8d3dc397387c
SSDEEP

12288:jtkSYXY7QFVwd6e7MBiJvISMwFiHsJ0fofBz7J5BP/+POgWldmjDjTrTv3iTG7QJ:h2dkwBjShyfE75BP/+mgWdm/bTAXLKx

Score

10^/10

remcos work discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

WORK

netflixyoutubebrowser.duckdns.org:34043

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
remcos
mouse_option
false
mutex
Rmc-CDDRK8
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4852	windowss.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windowss = "C:\\Users\\Admin\\AppData\\Roaming\\windowss.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4852 set thread context of 3624	4852	windowss.exe	100

System Location Discovery: System Language Discovery 1 TTPs 9 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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windowss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4708	PING.EXE
1032	PING.EXE
2476	cmd.exe
2248	PING.EXE
912	cmd.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
2248	PING.EXE
4708	PING.EXE
1032	PING.EXE

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
4852	windowss.exe
4852	windowss.exe
4852	windowss.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
Token: SeDebugPrivilege	4852	windowss.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 2476	3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	82
PID 3156 wrote to memory of 2476	3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	82
PID 3156 wrote to memory of 2476	3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	82
PID 2476 wrote to memory of 2248	2476	cmd.exe	84
PID 2476 wrote to memory of 2248	2476	cmd.exe	84
PID 2476 wrote to memory of 2248	2476	cmd.exe	84
PID 3156 wrote to memory of 912	3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	87
PID 3156 wrote to memory of 912	3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	87
PID 3156 wrote to memory of 912	3156	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	87
PID 912 wrote to memory of 4708	912	cmd.exe	89
PID 912 wrote to memory of 4708	912	cmd.exe	89
PID 912 wrote to memory of 4708	912	cmd.exe	89
PID 2476 wrote to memory of 4100	2476	cmd.exe	93
PID 2476 wrote to memory of 4100	2476	cmd.exe	93
PID 2476 wrote to memory of 4100	2476	cmd.exe	93
PID 912 wrote to memory of 1032	912	cmd.exe	98
PID 912 wrote to memory of 1032	912	cmd.exe	98
PID 912 wrote to memory of 1032	912	cmd.exe	98
PID 912 wrote to memory of 4852	912	cmd.exe	99
PID 912 wrote to memory of 4852	912	cmd.exe	99
PID 912 wrote to memory of 4852	912	cmd.exe	99
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100
PID 4852 wrote to memory of 3624	4852	windowss.exe	100

C:\Users\Admin\AppData\Local\Temp\931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
"C:\Users\Admin\AppData\Local\Temp\931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 16 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "windowss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\windowss.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2476
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 16
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2248
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "windowss" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\windowss.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:4100
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 29 > nul && copy "C:\Users\Admin\AppData\Local\Temp\931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe" "C:\Users\Admin\AppData\Roaming\windowss.exe" && ping 127.0.0.1 -n 29 > nul && "C:\Users\Admin\AppData\Roaming\windowss.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 29
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4708
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 29
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1032
- - C:\Users\Admin\AppData\Roaming\windowss.exe
    "C:\Users\Admin\AppData\Roaming\windowss.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4852
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:3624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\windowss.exe

Filesize
1.2MB

MD5
96d2106a3a6f64335ef5777aad854e50

SHA1
589ed8bfb973cd55162d021923ac35d2a0013758

SHA256
931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726

SHA512
3cd9920e070a2414ef25cbab7d00a3f3243d9f2a9504c59d140da4ca10e35f283276013c12ef75900152739ff52237b6881e6d81e07685e0a1ca8d3dc397387c

Download Submit
memory/3156-6-0x0000000004DD0000-0x0000000004DF6000-memory.dmp

Filesize
152KB

Download
memory/3156-2-0x0000000005240000-0x00000000057E4000-memory.dmp

Filesize
5.6MB

Download
memory/3156-3-0x0000000004C90000-0x0000000004D22000-memory.dmp

Filesize
584KB

Download
memory/3156-4-0x0000000004D30000-0x0000000004DCC000-memory.dmp

Filesize
624KB

Download
memory/3156-5-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3156-0-0x000000007518E000-0x000000007518F000-memory.dmp

Filesize
4KB

Download
memory/3156-7-0x0000000005230000-0x000000000523A000-memory.dmp

Filesize
40KB

Download
memory/3156-8-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3156-9-0x000000007518E000-0x000000007518F000-memory.dmp

Filesize
4KB

Download
memory/3156-10-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3156-12-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1-0x0000000000150000-0x000000000027E000-memory.dmp

Filesize
1.2MB

Download
memory/3624-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3624-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4852-18-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/4852-19-0x00000000005C0000-0x00000000006EE000-memory.dmp

Filesize
1.2MB

Download
memory/4852-28-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/4852-23-0x0000000009AC0000-0x0000000009AC6000-memory.dmp

Filesize
24KB

Download
memory/4852-22-0x0000000007470000-0x000000000748A000-memory.dmp

Filesize
104KB

Download
memory/4852-21-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/4852-20-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download