remcos | f513b71e26e1bc453669a266a026ae7f6f7eab7cc0a581ee68ce9783b4e65236

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 12:19

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General

Target

dc48821db597740a189fbbf956230d97_JaffaCakes118.exe
Size

1013KB
MD5

dc48821db597740a189fbbf956230d97
SHA1

6eff7f033c7265955ef36c1cb9407edc84be121b
SHA256

f513b71e26e1bc453669a266a026ae7f6f7eab7cc0a581ee68ce9783b4e65236
SHA512

e722329fccba67a5635ebd0256372f196cf725989ebef067a583ef3d89662cd31b1cfad2ed53f86edeb37bf9e08b4398c19b1af6fc2c57045027832a7186b2ed
SSDEEP

24576:HoGe3MxT5GWYiWU/3c2sP111111r11OkYohc2kWqtpqjti+NRx/i111111fx:HtLuWYhNCWcdOlM

Score

10^/10

remcos quest discovery rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Quest

oceanfrieghtmass.dynu.com:2406

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
true
mutex
remcos_lyojjnnumoctvpr
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
5
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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4860 set thread context of 4572	4860	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	94

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4572	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 4572	4860	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	94
PID 4860 wrote to memory of 4572	4860	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	94
PID 4860 wrote to memory of 4572	4860	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	94
PID 4860 wrote to memory of 4572	4860	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	94
PID 4860 wrote to memory of 4572	4860	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\dc48821db597740a189fbbf956230d97_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc48821db597740a189fbbf956230d97_JaffaCakes118.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\dc48821db597740a189fbbf956230d97_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\dc48821db597740a189fbbf956230d97_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4572-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-17-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-27-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-4-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-6-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-7-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-24-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-22-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-19-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-16-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4572-10-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4860-0-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/4860-14-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/4860-2-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/4860-1-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download