remcos | 43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c

General

Target

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
Size

1.1MB
MD5

4e991fbca595be038bf07c2bec420e54
SHA1

7da7bef438d2a35ea39a59623b78d1c8871f2462
SHA256

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c
SHA512

b2ebcb9f58a019c3265d5e001897cb778444a5f8caa509fb3b14ee368cf553aeab27769453ca9164a86f12e2a531b68b96daf0d5df8dbcc9ee6d3027bd6d2c90
SSDEEP

24576:K1Cp6h1NhMue8erGEEdQqzGdGD3aCg9zTZCX7r3gps:BCRMP8erseqadd9xC3W

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

yayabeloo.duckdns.org:6847

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-VPA6N9
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
Remcos family
remcos

Suspicious use of SetThreadContext 1 IoCs

Processes:

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

description	pid	Process	procid_target
PID 3360 set thread context of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

pid	Process
1780	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe

description	pid	Process	procid_target
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89
PID 3360 wrote to memory of 1780	3360	43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe	89

C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
"C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3360
- C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe
  "C:\Users\Admin\AppData\Local\Temp\43994b889ce86f1e9c546467c18d9dfa3cc1cec6f5b2dc88799ecb731e1bc43c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
979c2ad3839fd3b479c0e65ce3b44bce

SHA1
61007d19afd93e5cf2facf4bb31f8f0410471baf

SHA256
d48088db6524c91a6193a5f7eddb900ce0785dc9e6beb45b745dbd9ca720d473

SHA512
8d05b86b7468023b63ce560ac18f2e282658e694f7f054ffb091a878c6a3b814b958337dd5e93ba7f316c4493a3b00b80f1f55a26a1fb4b927d996958051b8e4

Download Submit
memory/1780-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1780-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3360-7-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/3360-10-0x000000000ACA0000-0x000000000AD3C000-memory.dmp

Filesize
624KB

Download
memory/3360-2-0x0000000005B80000-0x0000000006124000-memory.dmp

Filesize
5.6MB

Download
memory/3360-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/3360-9-0x0000000008180000-0x0000000008242000-memory.dmp

Filesize
776KB

Download
memory/3360-1-0x0000000000BA0000-0x0000000000CCC000-memory.dmp

Filesize
1.2MB

Download
memory/3360-8-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3360-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3360-6-0x0000000005AD0000-0x0000000005AEC000-memory.dmp

Filesize
112KB

Download
memory/3360-5-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3360-4-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/3360-3-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads