remcos | f7ac248e39e55ccbf0b79fbfd3bbad23f00dd3e595d6f58166a70dfd82adb951

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
14/11/2022, 22:26

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General

Target
file.exe
Size 646KB
Sample221114-2chg8adh89
SHA256 f7ac248e39e55ccbf0b79fbfd3bbad23f00dd3e595d6f58166a70dfd82adb951
MD5 260197b055066bf4f75d8ca96f27b4bd
SHA1 1debf16088f1107fc71c9832d244045be04ef545
SHA512 b32a03088e598adbd7e894853120182d128902f746f704ef51cadba16a1107c9639e17c8ef9f03fc6acb0df3ac5afa452ad9748f0343056dca5a366afd07969f
SSDEEP 12288:K5kLHFR1B/1jRuu10JaBCUZu58S0GMSGeBdDIPJCi/4qeEWbYlv:KmblRuM0JN+PknDIPJN/v
MD5 SHA1 SHA512 SSDEEP

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

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 864 set thread context of 1232	864	file.exe	29

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1380	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	864	file.exe
Token: SeDebugPrivilege	1380	Powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1232	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 864 wrote to memory of 1380	864	file.exe	27
PID 864 wrote to memory of 1380	864	file.exe	27
PID 864 wrote to memory of 1380	864	file.exe	27
PID 864 wrote to memory of 1380	864	file.exe	27
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29
PID 864 wrote to memory of 1232	864	file.exe	29

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:864
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\file.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SysFFDDFDtem.exe'
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1380
- 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:1232

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/864-58-0x0000000000200000-0x000000000021C000-memory.dmp

Download

memory/864-55-0x0000000075141000-0x0000000075143000-memory.dmp

Download

memory/864-54-0x0000000000920000-0x00000000009C4000-memory.dmp

Download

memory/1232-65-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1232-67-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1232-60-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1232-62-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-64-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-79-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-66-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-59-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-69-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-71-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-75-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1232-77-0x0000000000400000-0x000000000047F000-memory.dmp

Download

memory/1380-76-0x000000006FAB0000-0x000000007005B000-memory.dmp

Download

memory/1380-78-0x000000006FAB0000-0x000000007005B000-memory.dmp

Download