remcos | 931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
2748	windowss.exe

Loads dropped DLL 2 IoCs

pid	Process
2832	cmd.exe
2832	cmd.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-1-5-21-4177215427-74451935-3209572229-1000\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 2748 set thread context of 1344	2748	windowss.exe	40

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	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	windowss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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	AddInProcess32.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
2732	PING.EXE
2744	PING.EXE
3044	cmd.exe
2552	PING.EXE
2832	cmd.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
2552	PING.EXE
2732	PING.EXE
2744	PING.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
2748	windowss.exe
2748	windowss.exe
2748	windowss.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe
Token: SeDebugPrivilege	2748	windowss.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 3044	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	30
PID 1696 wrote to memory of 3044	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	30
PID 1696 wrote to memory of 3044	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	30
PID 1696 wrote to memory of 3044	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	30
PID 3044 wrote to memory of 2552	3044	cmd.exe	32
PID 3044 wrote to memory of 2552	3044	cmd.exe	32
PID 3044 wrote to memory of 2552	3044	cmd.exe	32
PID 3044 wrote to memory of 2552	3044	cmd.exe	32
PID 1696 wrote to memory of 2832	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	34
PID 1696 wrote to memory of 2832	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	34
PID 1696 wrote to memory of 2832	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	34
PID 1696 wrote to memory of 2832	1696	931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe	34
PID 2832 wrote to memory of 2732	2832	cmd.exe	36
PID 2832 wrote to memory of 2732	2832	cmd.exe	36
PID 2832 wrote to memory of 2732	2832	cmd.exe	36
PID 2832 wrote to memory of 2732	2832	cmd.exe	36
PID 3044 wrote to memory of 2612	3044	cmd.exe	37
PID 3044 wrote to memory of 2612	3044	cmd.exe	37
PID 3044 wrote to memory of 2612	3044	cmd.exe	37
PID 3044 wrote to memory of 2612	3044	cmd.exe	37
PID 2832 wrote to memory of 2744	2832	cmd.exe	38
PID 2832 wrote to memory of 2744	2832	cmd.exe	38
PID 2832 wrote to memory of 2744	2832	cmd.exe	38
PID 2832 wrote to memory of 2744	2832	cmd.exe	38
PID 2832 wrote to memory of 2748	2832	cmd.exe	39
PID 2832 wrote to memory of 2748	2832	cmd.exe	39
PID 2832 wrote to memory of 2748	2832	cmd.exe	39
PID 2832 wrote to memory of 2748	2832	cmd.exe	39
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40
PID 2748 wrote to memory of 1344	2748	windowss.exe	40

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:1696
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 17 > 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:3044
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 17
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2552
- - 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:2612
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 17 > nul && copy "C:\Users\Admin\AppData\Local\Temp\931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726.exe" "C:\Users\Admin\AppData\Roaming\windowss.exe" && ping 127.0.0.1 -n 17 > nul && "C:\Users\Admin\AppData\Roaming\windowss.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2832
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 17
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2732
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 17
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2744
- - 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:2748
  - - 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:1344

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

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Downloads

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

Filesize
1.2MB

MD5
96d2106a3a6f64335ef5777aad854e50

SHA1
589ed8bfb973cd55162d021923ac35d2a0013758

SHA256
931e3628826b5becb12781a8d1734715512b282ea3d33978c28db1676cbac726

SHA512
3cd9920e070a2414ef25cbab7d00a3f3243d9f2a9504c59d140da4ca10e35f283276013c12ef75900152739ff52237b6881e6d81e07685e0a1ca8d3dc397387c

Download Submit
memory/1344-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1344-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1344-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1696-5-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/1696-4-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/1696-3-0x0000000000AD0000-0x0000000000AF6000-memory.dmp

Filesize
152KB

Download
memory/1696-2-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/1696-1-0x0000000001200000-0x000000000132E000-memory.dmp

Filesize
1.2MB

Download
memory/1696-0-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/1696-6-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2748-17-0x0000000000B40000-0x0000000000C6E000-memory.dmp

Filesize
1.2MB

Download
memory/2748-18-0x0000000000500000-0x000000000051A000-memory.dmp

Filesize
104KB

Download
memory/2748-19-0x0000000000950000-0x0000000000956000-memory.dmp

Filesize
24KB

Download