remcos | 819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c

General

Target

819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe
Size

483KB
MD5

b21e324a39b4279504b10fee217239d3
SHA1

2a4a8bd8f9d91a367dd3205915ba5d3721b6d4a1
SHA256

819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c
SHA512

deaa5d6bebc6b22f60a3b8ba9804203fdf653b73608adb341ccdde223e206f31373a9d41d5a473fc631db72679f8a55585446af52cd43219d4d6a3c70acb272c
SSDEEP

6144:QTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccrmT4:QTlrYw1RUh3NFn+N5WfIQIjbs/ZBpT4

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

147.124.209.163:7719

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
startup.exe
copy_folder
users
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-X0705N
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Executes dropped EXE 1 IoCs

pid	Process
2360	startup.exe

Loads dropped DLL 2 IoCs

pid	Process
2492	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe
2492	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-X0705N = "\"C:\\ProgramData\\users\\startup.exe\""	startup.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-X0705N = "\"C:\\ProgramData\\users\\startup.exe\""	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-X0705N = "\"C:\\ProgramData\\users\\startup.exe\""	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-X0705N = "\"C:\\ProgramData\\users\\startup.exe\""	startup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	startup.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2360	2492	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe	30
PID 2492 wrote to memory of 2360	2492	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe	30
PID 2492 wrote to memory of 2360	2492	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe	30
PID 2492 wrote to memory of 2360	2492	819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe	30

C:\Users\Admin\AppData\Local\Temp\819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe
"C:\Users\Admin\AppData\Local\Temp\819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- C:\ProgramData\users\startup.exe
  "C:\ProgramData\users\startup.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\ProgramData\users\startup.exe

Filesize
483KB

MD5
b21e324a39b4279504b10fee217239d3

SHA1
2a4a8bd8f9d91a367dd3205915ba5d3721b6d4a1

SHA256
819eb00dba46a634dca1b24a66b977c650c2c54856fb150489397d622e065c2c

SHA512
deaa5d6bebc6b22f60a3b8ba9804203fdf653b73608adb341ccdde223e206f31373a9d41d5a473fc631db72679f8a55585446af52cd43219d4d6a3c70acb272c

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads