remcos | fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab

Analysis

max time kernel
152s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 08:15

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General

Target

NhGG.exe
Size

591KB
MD5

ab6ebb46942e94eb3661c4c86b099e8b
SHA1

f54817be0255ff370d2f9272b6593d9aacf1b6b8
SHA256

fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab
SHA512

0c548efa026dd3d49b1cbe894ce1f2e75df4f965558e89677ef7199f67d019d4a1bb4ac7624cd1b307515018196b380205bd7aff7e57a2aeffa4418dd101c731
SSDEEP

12288:qHvJn9wxkMn3Y7LnrjQx5PZ4BL2WwcULxjW3Vst0KCi/pB7o:qhn6ksY7jrsx5+MxjWs0KNB

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

51.75.209.245:2404

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-CMFPLR
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Drops startup file 2 IoCs

Processes:

Powershell.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systjnjem.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systjnjem.exe	Powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NhGG.exe

description pid process target process

PID 4200 set thread context of 2232 4200 NhGG.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Powershell.exe

pid process

2220 Powershell.exe
2220 Powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NhGG.exePowershell.exe

description pid process

Token: SeDebugPrivilege 4200 NhGG.exe
Token: SeDebugPrivilege 2220 Powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

2232 RegSvcs.exe

description	pid	process	target process
PID 4200 set thread context of 2232	4200	NhGG.exe	RegSvcs.exe

pid	process
2220	Powershell.exe
2220	Powershell.exe

description	pid	process
Token: SeDebugPrivilege	4200	NhGG.exe
Token: SeDebugPrivilege	2220	Powershell.exe

pid	process
2232	RegSvcs.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

NhGG.exe

description	pid	process	target process
PID 4200 wrote to memory of 2220	4200	NhGG.exe	Powershell.exe
PID 4200 wrote to memory of 2220	4200	NhGG.exe	Powershell.exe
PID 4200 wrote to memory of 2220	4200	NhGG.exe	Powershell.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe
PID 4200 wrote to memory of 2232	4200	NhGG.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\NhGG.exe
"C:\Users\Admin\AppData\Local\Temp\NhGG.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4200

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\NhGG.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systjnjem.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2220

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:2232

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2220-144-0x0000000005440000-0x00000000054A6000-memory.dmp

Filesize
408KB

Download
memory/2220-143-0x0000000005360000-0x00000000053C6000-memory.dmp

Filesize
408KB

Download
memory/2220-149-0x0000000005F90000-0x0000000005FB2000-memory.dmp

Filesize
136KB

Download
memory/2220-135-0x0000000000000000-mapping.dmp

Download
memory/2220-136-0x0000000002150000-0x0000000002186000-memory.dmp

Filesize
216KB

Download
memory/2220-138-0x0000000004C40000-0x0000000005268000-memory.dmp

Filesize
6.2MB

Download
memory/2220-148-0x0000000005F40000-0x0000000005F5A000-memory.dmp

Filesize
104KB

Download
memory/2220-147-0x0000000005FD0000-0x0000000006066000-memory.dmp

Filesize
600KB

Download
memory/2220-146-0x0000000005A50000-0x0000000005A6E000-memory.dmp

Filesize
120KB

Download
memory/2220-142-0x0000000004A90000-0x0000000004AB2000-memory.dmp

Filesize
136KB

Download
memory/2232-150-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-137-0x0000000000000000-mapping.dmp

Download
memory/2232-139-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2232-141-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-133-0x00000000052E0000-0x0000000005884000-memory.dmp

Filesize
5.6MB

Download
memory/4200-132-0x00000000001A0000-0x000000000023A000-memory.dmp

Filesize
616KB

Download
memory/4200-134-0x0000000004ED0000-0x0000000004F6C000-memory.dmp

Filesize
624KB

Download