remcos | 7cb2c350a025880efcd530e13a25bf9a11a1708a9603307e8750595b60e536ab

General

Target

3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
Size

2.6MB
MD5

0fb29b3596164f56c1e599e88e9de6bc
SHA1

1208d75d6fd23f64b34358254421c9c817f89802
SHA256

3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656
SHA512

e10b5fc5046723729c00f8d3a295d90a9628a41651d9fd2338edea37361924436cad668573d9bd281f94b518abd8111d067c6aa370314ddafe16ad3022eedbe8
SSDEEP

49152:rAQuUQKJOdXIA+aXnFT3rXHwrg9VM51cks3tyJGbaaIadIQEOll/WZtUYEzxCWng:unArgUw5/I0IMbW2zxCWt+

Score

10^/10

remcos kay & matty co.persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Kay & Matty Co.

C2

176.126.86.245:62520

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-BH9O5G
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\frirefox = "\"C:\\Users\\Admin\\AppData\\Roaming\\downloads\\frirefox.exe\""	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4692 set thread context of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4944	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 3052	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	79
PID 4692 wrote to memory of 3052	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	79
PID 4692 wrote to memory of 3052	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	79
PID 4692 wrote to memory of 1804	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	80
PID 4692 wrote to memory of 1804	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	80
PID 4692 wrote to memory of 1804	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	80
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81
PID 4692 wrote to memory of 4944	4692	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	81

C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
"C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  2⤵
  PID:3052
- C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  2⤵
  PID:1804
- C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4692-132-0x0000000000F60000-0x0000000001202000-memory.dmp

Filesize
2.6MB

Download
memory/4692-133-0x0000000005AA0000-0x0000000005AC2000-memory.dmp

Filesize
136KB

Download
memory/4944-137-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4944-138-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4944-139-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4944-140-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4944-141-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

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