remcos | c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224

General

Target

c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe
Size

1.3MB
MD5

2fb6ad2ad37bc5ae6241229455b91fea
SHA1

d7d3166fb370ba79dd4adaf4c7dc9574dcc5ae41
SHA256

c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224
SHA512

f4359284fffd3c18f46443f220f4bd2fd03d52bae2d274915c08cdc240a59ba31d6affc4276fb4ba9d76155a5f0d780a30f1868404f866bf5d743c50ebb8ac21
SSDEEP

24576:xu6J33O0c+JY5UZ+XC0kGso6Fa2w05Yfoq0iA8xoPBbLgsKHI6C1WY:ju0c++OCvkGs9Fa2cfoq0SwtgTY

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:42555

62.60.235.90:42555

oni22.duckdns.org:42555

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-811GZW
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\ectosphere.vbs	ectosphere.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	ectosphere.exe

Loads dropped DLL 1 IoCs

pid	Process
2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x00070000000193d0-8.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2608	2780	ectosphere.exe	31

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	ectosphere.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2780	ectosphere.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe
2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe
2780	ectosphere.exe
2780	ectosphere.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe
2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe
2780	ectosphere.exe
2780	ectosphere.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2780	2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe	30
PID 2716 wrote to memory of 2780	2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe	30
PID 2716 wrote to memory of 2780	2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe	30
PID 2716 wrote to memory of 2780	2716	c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe	30
PID 2780 wrote to memory of 2608	2780	ectosphere.exe	31
PID 2780 wrote to memory of 2608	2780	ectosphere.exe	31
PID 2780 wrote to memory of 2608	2780	ectosphere.exe	31
PID 2780 wrote to memory of 2608	2780	ectosphere.exe	31
PID 2780 wrote to memory of 2608	2780	ectosphere.exe	31

C:\Users\Admin\AppData\Local\Temp\c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe
"C:\Users\Admin\AppData\Local\Temp\c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\fornices\ectosphere.exe
  "C:\Users\Admin\AppData\Local\Temp\c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.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:2780
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2608

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

\Users\Admin\AppData\Local\fornices\ectosphere.exe

Filesize
1.3MB

MD5
2fb6ad2ad37bc5ae6241229455b91fea

SHA1
d7d3166fb370ba79dd4adaf4c7dc9574dcc5ae41

SHA256
c1e27dccf538298b42260f2ffde5d707bf5852f3e624a57cc7a19eca4380d224

SHA512
f4359284fffd3c18f46443f220f4bd2fd03d52bae2d274915c08cdc240a59ba31d6affc4276fb4ba9d76155a5f0d780a30f1868404f866bf5d743c50ebb8ac21

Download Submit
memory/2608-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2608-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2716-6-0x0000000000890000-0x0000000000C90000-memory.dmp

Filesize
4.0MB

Download
memory/2780-20-0x0000000000EF0000-0x00000000012F0000-memory.dmp

Filesize
4.0MB

Download

Analysis

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