remcos | dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
06-06-2023 13:51

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General

Target

file.exe
Size

571KB
MD5

58a91896eaf6efe03ffe6ebb7b731792
SHA1

e3ec7807b22e91e887dd1bc752c426041607216f
SHA256

dc984e3a8de291d49bab5940b8f8047d2a7d8f0dab4231342c36edcee9cbb92e
SHA512

9c764a0ec4d5f628fe998d90836fe39b2e112ebb21dc97e323c5ef0e50d6790ed36b5d89609c4aa4be2a5aaf6f4859e6e5a70150ce8b446868189417d9dffc23
SSDEEP

12288:OBm+u0O5pDETlQ6ocFa59nBTDvdeLu3jaLWGaGAXd:uzAgQ6Y59hDvdeLuTwK

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:55433

185.65.134.166:55433

10.11.0.5:55433

45.128.234.54:55433

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-UQ90W9
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

file.exe

description pid process target process

PID 3580 set thread context of 3012 3580 file.exe aspnet_compiler.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

aspnet_compiler.exe

pid process

3012 aspnet_compiler.exe

description	pid	process	target process
PID 3580 set thread context of 3012	3580	file.exe	aspnet_compiler.exe

pid	process
3012	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

file.exe

description	pid	process	target process
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe
PID 3580 wrote to memory of 3012	3580	file.exe	aspnet_compiler.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3580

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
2⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:3012

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3012-143-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-158-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-144-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-137-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-138-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-139-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-140-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-141-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-136-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-134-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-148-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-146-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-149-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-150-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-152-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-154-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-156-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3012-157-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3580-133-0x000002AB2CE50000-0x000002AB2CEE4000-memory.dmp

Filesize
592KB

Download