remcos | 4e24f18c609d04ba55264362e311e7536eda95872bf42a3327b7970f2b8eaacb

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
07/10/2022, 05:32

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General

Target

tmp.exe
Size

617KB
MD5

be8e3dfb9f3668de8c5497b3e7d3f9a5
SHA1

c614d3eaca3463d527ee49ec58a9f96eea17a147
SHA256

4e24f18c609d04ba55264362e311e7536eda95872bf42a3327b7970f2b8eaacb
SHA512

b5eb26de84bc0d4b7928093ca4122958e580589bdd2a56fc76d9fec9ec6b011acc7f625397f379fc0e9ed862ff1e32c81441bc7e27ff39d73de41eab26bad97d
SSDEEP

12288:W4A5JdZwbesBHi2BD9iw7a3Yn7d5IrulMKCi/O:WZdZDshxAWznhFOKN

Score

10^/10

remcos favourhost rat

Malware Config

Extracted

Family

remcos

Botnet

FavourHost

194.147.140.100:2207

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
Remcos-DSZSE6
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

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3044 set thread context of 2992	3044	tmp.exe	95

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3044	tmp.exe
3044	tmp.exe
4984	Powershell.exe
4984	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	tmp.exe
Token: SeDebugPrivilege	4984	Powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2992	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 4984	3044	tmp.exe	92
PID 3044 wrote to memory of 4984	3044	tmp.exe	92
PID 3044 wrote to memory of 4984	3044	tmp.exe	92
PID 3044 wrote to memory of 744	3044	tmp.exe	94
PID 3044 wrote to memory of 744	3044	tmp.exe	94
PID 3044 wrote to memory of 744	3044	tmp.exe	94
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95
PID 3044 wrote to memory of 2992	3044	tmp.exe	95

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\tmp.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QWRTYDSHJ.exe'
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4984
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2992

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2992-142-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2992-146-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2992-151-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2992-139-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2992-141-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3044-132-0x0000000000D10000-0x0000000000DB0000-memory.dmp

Filesize
640KB

Download
memory/3044-133-0x0000000005780000-0x000000000581C000-memory.dmp

Filesize
624KB

Download
memory/3044-134-0x0000000005DD0000-0x0000000006374000-memory.dmp

Filesize
5.6MB

Download
memory/4984-150-0x0000000006940000-0x0000000006962000-memory.dmp

Filesize
136KB

Download
memory/4984-136-0x0000000002B60000-0x0000000002B96000-memory.dmp

Filesize
216KB

Download
memory/4984-143-0x00000000055C0000-0x00000000055E2000-memory.dmp

Filesize
136KB

Download
memory/4984-144-0x0000000005DD0000-0x0000000005E36000-memory.dmp

Filesize
408KB

Download
memory/4984-140-0x00000000057A0000-0x0000000005DC8000-memory.dmp

Filesize
6.2MB

Download
memory/4984-147-0x0000000006470000-0x000000000648E000-memory.dmp

Filesize
120KB

Download
memory/4984-148-0x0000000007430000-0x00000000074C6000-memory.dmp

Filesize
600KB

Download
memory/4984-149-0x00000000068F0000-0x000000000690A000-memory.dmp

Filesize
104KB

Download
memory/4984-145-0x0000000005E40000-0x0000000005EA6000-memory.dmp

Filesize
408KB

Download