remcos | f513b71e26e1bc453669a266a026ae7f6f7eab7cc0a581ee68ce9783b4e65236

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

C2

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 2276 set thread context of 2756	2276	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	29

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
2756	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2756	2276	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2756	2276	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2756	2276	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2756	2276	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2756	2276	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2756	2276	dc48821db597740a189fbbf956230d97_JaffaCakes118.exe	29

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:2276
- 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:2756

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

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Downloads

memory/2276-10-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/2276-2-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2276-1-0x0000000000400000-0x0000000000507000-memory.dmp

Filesize
1.0MB

Download
memory/2276-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2756-14-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-8-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-16-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-4-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-13-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-12-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-20-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-21-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-23-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-26-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-29-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2756-31-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

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