remcos | f045bfccb64d78fca3716eaf1e03b7e4e4b53a4adb678e22d5ed2d6ba63b6ea3

Analysis

max time kernel
1798s
max time network
1501s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
19-04-2024 16:02

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General

Target

Sig.exe
Size

2.4MB
MD5

85b9954d8d5f3c814543f471e1f012f9
SHA1

4f8c4132247d42d7fd21b2fad3972d2c18319210
SHA256

f045bfccb64d78fca3716eaf1e03b7e4e4b53a4adb678e22d5ed2d6ba63b6ea3
SHA512

47667140d38b5e43514911842ae3f81bdf42d90c7979b8ee813a95f765ba74a4b05e92c351f786836e2630f784fec232a80cee0d589e288b84108b6d1893f298
SSDEEP

49152:S6bkzSYl+aFUUhf3LIE3VEa9Ml6MW0svKrZ2Z+ItVzp0:SgoL33VEa9yIQZ0tA

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Version

4.9.3 Light

Botnet

RemoteHost

127.0.0.1:2404

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-52SPIJ
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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 NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

Sig.exe

pid process

4932 Sig.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

Sig.exe

pid process

2428 Sig.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Sig.exe

pid process

2428 Sig.exe

pid	process
4932	Sig.exe

pid	process
2428	Sig.exe

pid	process
2428	Sig.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Sig.exe

description	pid	process	target process
PID 4932 wrote to memory of 2428	4932	Sig.exe	Sig.exe
PID 4932 wrote to memory of 2428	4932	Sig.exe	Sig.exe
PID 4932 wrote to memory of 2428	4932	Sig.exe	Sig.exe
PID 4932 wrote to memory of 2428	4932	Sig.exe	Sig.exe
PID 4932 wrote to memory of 2428	4932	Sig.exe	Sig.exe
PID 4932 wrote to memory of 2428	4932	Sig.exe	Sig.exe

C:\Users\Admin\AppData\Local\Temp\Sig.exe
"C:\Users\Admin\AppData\Local\Temp\Sig.exe"
1⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:4932

C:\Users\Admin\AppData\Local\Temp\Sig.exe
"C:\Users\Admin\AppData\Local\Temp\Sig.exe"
2⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2428

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2428-39-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-20-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-9-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-10-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-11-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-4-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2428-13-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-14-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-15-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-16-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-17-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-18-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-19-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-40-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-21-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-22-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-23-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-24-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-25-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-26-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-27-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-28-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-29-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-30-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-31-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-41-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-33-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-34-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-35-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-36-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-37-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-38-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-12-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-8-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-32-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-42-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-43-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-44-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-45-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-46-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-47-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-48-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-49-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-50-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-51-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-52-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-53-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-54-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-55-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-56-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-57-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-58-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-59-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-60-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-61-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-62-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-63-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-64-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-65-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-66-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/2428-67-0x0000000000660000-0x00000000006D5000-memory.dmp

Filesize
468KB

Download
memory/4932-0-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/4932-1-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/4932-2-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/4932-7-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download