remcos | 200eca54c7f6341b7df45fda4062dfd87c141ce38325adebf1bd79f1a4615d8e

General

Target

0B47488DFC9DED8128A52E8061FB6B33.exe
Size

1.2MB
MD5

0b47488dfc9ded8128a52e8061fb6b33
SHA1

9605ff2f9c6b2a4b293979fbc30489bb90c98404
SHA256

200eca54c7f6341b7df45fda4062dfd87c141ce38325adebf1bd79f1a4615d8e
SHA512

9a72c4633b0e206fa0a9b105ab50cf6e7d0a4e738ff98c367374647bca20a6e8fcb341f197a2d1f70deaf9c6a7e3edc2bf4f61148c4eb2b147280621f5a09e76
SSDEEP

24576:nAHnh+eWsN3skA4RV1Hom2KXMmHa0a92mSBRZZQv8gYbqNV98Hf5:ah+ZkldoPK8Yap92PBnO8lqNVmR

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

chefdnshost.duckdns.org:6720

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-1H7SC3
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
Remcos family
remcos

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\demonetised.vbs	demonetised.exe

Executes dropped EXE 1 IoCs

pid	Process
3280	demonetised.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000a000000023bad-13.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3280 set thread context of 3540	3280	demonetised.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	demonetised.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0B47488DFC9DED8128A52E8061FB6B33.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3280	demonetised.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
2728	0B47488DFC9DED8128A52E8061FB6B33.exe
2728	0B47488DFC9DED8128A52E8061FB6B33.exe
3280	demonetised.exe
3280	demonetised.exe
3540	svchost.exe

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
2728	0B47488DFC9DED8128A52E8061FB6B33.exe
2728	0B47488DFC9DED8128A52E8061FB6B33.exe
3280	demonetised.exe
3280	demonetised.exe
3540	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 3280	2728	0B47488DFC9DED8128A52E8061FB6B33.exe	83
PID 2728 wrote to memory of 3280	2728	0B47488DFC9DED8128A52E8061FB6B33.exe	83
PID 2728 wrote to memory of 3280	2728	0B47488DFC9DED8128A52E8061FB6B33.exe	83
PID 3280 wrote to memory of 3540	3280	demonetised.exe	84
PID 3280 wrote to memory of 3540	3280	demonetised.exe	84
PID 3280 wrote to memory of 3540	3280	demonetised.exe	84
PID 3280 wrote to memory of 3540	3280	demonetised.exe	84

C:\Users\Admin\AppData\Local\Temp\0B47488DFC9DED8128A52E8061FB6B33.exe
"C:\Users\Admin\AppData\Local\Temp\0B47488DFC9DED8128A52E8061FB6B33.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Local\ambiparous\demonetised.exe
  "C:\Users\Admin\AppData\Local\Temp\0B47488DFC9DED8128A52E8061FB6B33.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3280
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\0B47488DFC9DED8128A52E8061FB6B33.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:3540

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

C:\Users\Admin\AppData\Local\ambiparous\demonetised.exe

Filesize
1.2MB

MD5
0b47488dfc9ded8128a52e8061fb6b33

SHA1
9605ff2f9c6b2a4b293979fbc30489bb90c98404

SHA256
200eca54c7f6341b7df45fda4062dfd87c141ce38325adebf1bd79f1a4615d8e

SHA512
9a72c4633b0e206fa0a9b105ab50cf6e7d0a4e738ff98c367374647bca20a6e8fcb341f197a2d1f70deaf9c6a7e3edc2bf4f61148c4eb2b147280621f5a09e76

Download Submit
memory/2728-10-0x00000000036E0000-0x00000000036E4000-memory.dmp

Filesize
16KB

Download
memory/3540-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3540-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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