remcos | 3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
07/02/2023, 12:15

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General

Target
3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
Size 2.6MB
Sample230207-pew26sbe96
SHA256 3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656
MD5 0fb29b3596164f56c1e599e88e9de6bc
SHA1 1208d75d6fd23f64b34358254421c9c817f89802
SHA512 e10b5fc5046723729c00f8d3a295d90a9628a41651d9fd2338edea37361924436cad668573d9bd281f94b518abd8111d067c6aa370314ddafe16ad3022eedbe8
SSDEEP 49152:rAQuUQKJOdXIA+aXnFT3rXHwrg9VM51cks3tyJGbaaIadIQEOll/WZtUYEzxCWng:unArgUw5/I0IMbW2zxCWt+
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos kay & matty co.persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Kay & Matty Co.

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-1-5-21-4246620582-653642754-1174164128-1000\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 4880 set thread context of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3000	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82
PID 4880 wrote to memory of 3000	4880	3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe	82

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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  C:\Users\Admin\AppData\Local\Temp\3a20e81b1f0bf0699007470e5a8e2a9a0d6507ea99696f0df9bd99b80910d656.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3000-135-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/3000-136-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/3000-137-0x0000000000400000-0x0000000000480000-memory.dmp

Download

memory/3000-138-0x0000000000400000-0x0000000000480000-memory.dmp

Download

memory/3000-139-0x0000000000400000-0x0000000000480000-memory.dmp

Download

memory/4880-132-0x00000000005B0000-0x0000000000852000-memory.dmp

Download

memory/4880-133-0x00000000054D0000-0x00000000054F2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads