remcos | 258aae78aa178a34b2f402cb55f35d159ca4e69dea10f4ad82462f701022b01e

General

Target

Quotation - SQ_HYD_003861.exe
Size

620KB
MD5

458244c986e32aaadd41d24c324927a0
SHA1

d49fd336aa758a128f5b801a115d8a44b25f06cf
SHA256

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2
SHA512

2454f9e59589946faef2d38a93877552040233c06f9d257ac80e78133ad8a854e677655be28861f85f6f865e7222863b5989e85eeb9a39504d6ef8084d82b07c
SSDEEP

12288:M417/cAhnVxR24T93+suohEX7RGFO3dugtOh0:M417/ciXRQnoWXEg3dO

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

www.chileeclassproject.com:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
5451
mouse_option
false
mutex
Rmc-1FU53L
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
Remcos family
remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1168 set thread context of 1912	1168	Quotation - SQ_HYD_003861.exe	85

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	Quotation - SQ_HYD_003861.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation - SQ_HYD_003861.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1912	Quotation - SQ_HYD_003861.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85
PID 1168 wrote to memory of 1912	1168	Quotation - SQ_HYD_003861.exe	85

C:\Users\Admin\AppData\Local\Temp\Quotation - SQ_HYD_003861.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation - SQ_HYD_003861.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\Quotation - SQ_HYD_003861.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation - SQ_HYD_003861.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1912

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:\ProgramData\5451\logs.dat

Filesize
144B

MD5
d482252222c226b23505a87924a55123

SHA1
5e4b7823006ff15c833cdf65179d5d4d82210e8b

SHA256
8b3aa36ac73324595d43281ff432f181aa72dffdd63d5bda66bbbcd4cef7a9e1

SHA512
47a630adf8fbfe0f7ca608234a8bfeda1bf76a43256efcbe235d75d1951e4d0af130c32c9fea668e14107727ea8246bc8213b0ec1256ecb310b6891a8933706e

Download Submit
memory/1168-17-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/1168-1-0x00000000009A0000-0x0000000000A42000-memory.dmp

Filesize
648KB

Download
memory/1168-2-0x0000000005870000-0x0000000005E14000-memory.dmp

Filesize
5.6MB

Download
memory/1168-3-0x0000000005360000-0x00000000053F2000-memory.dmp

Filesize
584KB

Download
memory/1168-4-0x0000000005330000-0x000000000533A000-memory.dmp

Filesize
40KB

Download
memory/1168-5-0x0000000074CF0000-0x00000000754A0000-memory.dmp

Filesize
7.7MB

Download
memory/1168-6-0x00000000055C0000-0x0000000005646000-memory.dmp

Filesize
536KB

Download
memory/1168-0-0x0000000074CFE000-0x0000000074CFF000-memory.dmp

Filesize
4KB

Download
memory/1912-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1912-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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