remcos | fa5bbf33052d4d6e5c8b95276dbd146e683dc5f9248bc94fac4505eeb2e45759

General

Target

HSBC TT PAYMENT INVOICE 203.exe
Size

1.4MB
MD5

b752fb7a1850de5cc4e5db87eea6f710
SHA1

f8e43570189422f655ee6b0706bf29defa8c1c69
SHA256

fa5bbf33052d4d6e5c8b95276dbd146e683dc5f9248bc94fac4505eeb2e45759
SHA512

5b055ae17a265d466cb11bbdfdaa6f4de00de086ce47bbce1bd1bfea994f079b51580847283c7b9493e1bfcfedd06c629ad383bac34a6b59033e04cd37bbc740
SSDEEP

12288:DruBBtnm3n0He9DlpzIpk1qaxbxQxkT4/rJw8flwykcnM9lPuTO47QpilQP/dUBG:S65k/n4wcKxQRaTllEIsYDYrl

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.212.81.155:2404

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
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-GY4RIT
screenshot_crypt
false
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
1
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
4908	remcos.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-642304425-1816607141-2958861556-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-GY4RIT = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	HSBC TT PAYMENT INVOICE 203.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-GY4RIT = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	HSBC TT PAYMENT INVOICE 203.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 2736 wrote to memory of 4092	2736	HSBC TT PAYMENT INVOICE 203.exe	86
PID 4092 wrote to memory of 4908	4092	HSBC TT PAYMENT INVOICE 203.exe	87
PID 4092 wrote to memory of 4908	4092	HSBC TT PAYMENT INVOICE 203.exe	87
PID 4092 wrote to memory of 4908	4092	HSBC TT PAYMENT INVOICE 203.exe	87

C:\Users\Admin\AppData\Local\Temp\HSBC TT PAYMENT INVOICE 203.exe
"C:\Users\Admin\AppData\Local\Temp\HSBC TT PAYMENT INVOICE 203.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\HSBC TT PAYMENT INVOICE 203.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4092
- - C:\ProgramData\Remcos\remcos.exe
    "C:\ProgramData\Remcos\remcos.exe"
    3⤵
    - Executes dropped EXE
    PID:4908

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Remcos\remcos.exe

Filesize
1.4MB

MD5
b752fb7a1850de5cc4e5db87eea6f710

SHA1
f8e43570189422f655ee6b0706bf29defa8c1c69

SHA256
fa5bbf33052d4d6e5c8b95276dbd146e683dc5f9248bc94fac4505eeb2e45759

SHA512
5b055ae17a265d466cb11bbdfdaa6f4de00de086ce47bbce1bd1bfea994f079b51580847283c7b9493e1bfcfedd06c629ad383bac34a6b59033e04cd37bbc740

Download Submit
C:\ProgramData\Remcos\remcos.exe

Filesize
1.4MB

MD5
b752fb7a1850de5cc4e5db87eea6f710

SHA1
f8e43570189422f655ee6b0706bf29defa8c1c69

SHA256
fa5bbf33052d4d6e5c8b95276dbd146e683dc5f9248bc94fac4505eeb2e45759

SHA512
5b055ae17a265d466cb11bbdfdaa6f4de00de086ce47bbce1bd1bfea994f079b51580847283c7b9493e1bfcfedd06c629ad383bac34a6b59033e04cd37bbc740

Download Submit
C:\ProgramData\Remcos\remcos.exe

Filesize
1.4MB

MD5
b752fb7a1850de5cc4e5db87eea6f710

SHA1
f8e43570189422f655ee6b0706bf29defa8c1c69

SHA256
fa5bbf33052d4d6e5c8b95276dbd146e683dc5f9248bc94fac4505eeb2e45759

SHA512
5b055ae17a265d466cb11bbdfdaa6f4de00de086ce47bbce1bd1bfea994f079b51580847283c7b9493e1bfcfedd06c629ad383bac34a6b59033e04cd37bbc740

Download Submit
memory/2736-5-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2736-13-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2736-0-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2736-6-0x0000000005690000-0x00000000056A0000-memory.dmp

Filesize
64KB

Download
memory/2736-7-0x00000000052C0000-0x00000000052CA000-memory.dmp

Filesize
40KB

Download
memory/2736-8-0x0000000005690000-0x00000000056A0000-memory.dmp

Filesize
64KB

Download
memory/2736-1-0x0000000000780000-0x00000000008EE000-memory.dmp

Filesize
1.4MB

Download
memory/2736-2-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download
memory/2736-3-0x0000000005300000-0x0000000005392000-memory.dmp

Filesize
584KB

Download
memory/2736-4-0x0000000005410000-0x00000000054AC000-memory.dmp

Filesize
624KB

Download
memory/4092-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4092-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4092-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4092-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4092-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4908-27-0x0000000073F00000-0x00000000746B0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-28-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

Filesize
64KB

Download
memory/4908-29-0x0000000073F00000-0x00000000746B0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-30-0x0000000004EC0000-0x0000000004ED0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads