remcos | 6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6

Analysis

max time kernel
148s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 14:13

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General

Target

6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
Size

1.1MB
MD5

f1bda53f78cc8c5aa18d4501795afc3a
SHA1

260e7b5f90883d9b36e8c9ee6d05aa8efa3399d7
SHA256

6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6
SHA512

a237dd86027da2f201983adebcd2d4687787b57bf79488060a612cee87ff606cc95ed34abd2d7da570c153b0b083b7e584bf107f82899c36bb901ca0cde7e85b
SSDEEP

24576:6kwwRwIJpMmvMnjmAqejHJMqu/7RRvXMGU:5wpIlvEqA5pM77RF8j

Score

10^/10

remcos nownew discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

NOWNEW

catoooomw.ddnsfree.com:6609

Attributes

audio_folder
MicRecords
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-LU9SUA
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 4 IoCs

pid	Process
1112	Gmas.exe
1168	Gmas.exe
2976	Gmas.exe
2184	Gmas.exe

Loads dropped DLL 2 IoCs

pid	Process
2820	cmd.exe
2820	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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gmas = "C:\\Windows\\Temp\\Gmas.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1112 set thread context of 2184	1112	Gmas.exe	42

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	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gmas.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gmas.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	cmd.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
2856	PING.EXE
2376	PING.EXE
1452	cmd.exe
1748	PING.EXE
2820	cmd.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
1748	PING.EXE
2856	PING.EXE
2376	PING.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
1112	Gmas.exe
1112	Gmas.exe
1112	Gmas.exe
1112	Gmas.exe
1112	Gmas.exe
1112	Gmas.exe
1112	Gmas.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
Token: SeDebugPrivilege	1112	Gmas.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 1452	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	30
PID 1924 wrote to memory of 1452	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	30
PID 1924 wrote to memory of 1452	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	30
PID 1924 wrote to memory of 1452	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	30
PID 1452 wrote to memory of 1748	1452	cmd.exe	32
PID 1452 wrote to memory of 1748	1452	cmd.exe	32
PID 1452 wrote to memory of 1748	1452	cmd.exe	32
PID 1452 wrote to memory of 1748	1452	cmd.exe	32
PID 1924 wrote to memory of 2820	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	34
PID 1924 wrote to memory of 2820	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	34
PID 1924 wrote to memory of 2820	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	34
PID 1924 wrote to memory of 2820	1924	6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe	34
PID 2820 wrote to memory of 2856	2820	cmd.exe	36
PID 2820 wrote to memory of 2856	2820	cmd.exe	36
PID 2820 wrote to memory of 2856	2820	cmd.exe	36
PID 2820 wrote to memory of 2856	2820	cmd.exe	36
PID 1452 wrote to memory of 2232	1452	cmd.exe	37
PID 1452 wrote to memory of 2232	1452	cmd.exe	37
PID 1452 wrote to memory of 2232	1452	cmd.exe	37
PID 1452 wrote to memory of 2232	1452	cmd.exe	37
PID 2820 wrote to memory of 2376	2820	cmd.exe	38
PID 2820 wrote to memory of 2376	2820	cmd.exe	38
PID 2820 wrote to memory of 2376	2820	cmd.exe	38
PID 2820 wrote to memory of 2376	2820	cmd.exe	38
PID 2820 wrote to memory of 1112	2820	cmd.exe	39
PID 2820 wrote to memory of 1112	2820	cmd.exe	39
PID 2820 wrote to memory of 1112	2820	cmd.exe	39
PID 2820 wrote to memory of 1112	2820	cmd.exe	39
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 1168	1112	Gmas.exe	40
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2976	1112	Gmas.exe	41
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42
PID 1112 wrote to memory of 2184	1112	Gmas.exe	42

C:\Users\Admin\AppData\Local\Temp\6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe
"C:\Users\Admin\AppData\Local\Temp\6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1924
- 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 "Gmas" /t REG_SZ /d "C:\Windows\Temp\Gmas.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1452
- - 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:1748
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Gmas" /t REG_SZ /d "C:\Windows\Temp\Gmas.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 25 > nul && copy "C:\Users\Admin\AppData\Local\Temp\6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6.exe" "C:\Windows\Temp\Gmas.exe" && ping 127.0.0.1 -n 25 > nul && "C:\Windows\Temp\Gmas.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2820
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 25
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2856
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 25
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2376
- - C:\Windows\Temp\Gmas.exe
    "C:\Windows\Temp\Gmas.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:1112
  - - C:\Windows\Temp\Gmas.exe
      "C:\Windows\Temp\Gmas.exe"
      4⤵
      Executes dropped EXE
      PID:1168
  - - C:\Windows\Temp\Gmas.exe
      "C:\Windows\Temp\Gmas.exe"
      4⤵
      Executes dropped EXE
      PID:2976
  - - C:\Windows\Temp\Gmas.exe
      "C:\Windows\Temp\Gmas.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2184

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

\Windows\Temp\Gmas.exe

Filesize
1.1MB

MD5
f1bda53f78cc8c5aa18d4501795afc3a

SHA1
260e7b5f90883d9b36e8c9ee6d05aa8efa3399d7

SHA256
6924b00e1174b2200d0d477565d64d8024c6092e34f3e55f51aa14f0c6d911b6

SHA512
a237dd86027da2f201983adebcd2d4687787b57bf79488060a612cee87ff606cc95ed34abd2d7da570c153b0b083b7e584bf107f82899c36bb901ca0cde7e85b

Download Submit
memory/1112-19-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/1112-18-0x0000000000970000-0x000000000098A000-memory.dmp

Filesize
104KB

Download
memory/1112-17-0x0000000000080000-0x0000000000194000-memory.dmp

Filesize
1.1MB

Download
memory/1168-24-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1168-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1168-22-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1168-26-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1168-30-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1168-32-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1168-34-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1168-21-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1168-28-0x00000000001A0000-0x0000000000222000-memory.dmp

Filesize
520KB

Download
memory/1924-1-0x0000000000810000-0x0000000000924000-memory.dmp

Filesize
1.1MB

Download
memory/1924-5-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-2-0x0000000000420000-0x0000000000462000-memory.dmp

Filesize
264KB

Download
memory/1924-3-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1924-4-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/1924-0-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/1924-6-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2184-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download