remcos | 285320e80186bcb40d93226fd64ed821cd935c6bfd222ee8b1b0c28806fb7a42 | Triage

Analysis

max time kernel
148s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
09-08-2022 07:03

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General

Target

tmp.exe
Size

466KB
MD5

3df9b4700366c9b2cad6a8ea983f8ad6
SHA1

ee7b516a234a1e9107fd0655d55a0bafb5744cd5
SHA256

285320e80186bcb40d93226fd64ed821cd935c6bfd222ee8b1b0c28806fb7a42
SHA512

2c5661f5dc2333035a04dfb01de259976fb7a3ddad28f0f0b85ad3b9589164abf0b37135a783ba39fe4e2b1d6a8382151ef7d69b21b4ccd8eb70bfd052df4658

Score

10^/10

remcos msmpeng rat

Malware Config

Extracted

Family

remcos

Botnet

msmpeng

C2

191.101.30.16:4444

securewebareaxxx.ddns.net:4444

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
true
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-08LKIV
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
svchost
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 4804 set thread context of 4320 4804 tmp.exe svchost.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

tmp.exe

pid process

4804 tmp.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

tmp.exe

pid process

4804 tmp.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 4804 wrote to memory of 4320	4804	tmp.exe	svchost.exe
PID 4804 wrote to memory of 4320	4804	tmp.exe	svchost.exe
PID 4804 wrote to memory of 4320	4804	tmp.exe	svchost.exe
PID 4804 wrote to memory of 4320	4804	tmp.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
PID:4320

Network

MITRE ATT&CK Matrix

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Downloads

memory/4320-130-0x0000000000000000-mapping.dmp

Download
memory/4320-131-0x0000000000E20000-0x0000000000E9E000-memory.dmp

Filesize
504KB

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