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 4804 set thread context of 4180	4804	Quotation - SQ_HYD_003861.exe	86

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
4180	Quotation - SQ_HYD_003861.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86
PID 4804 wrote to memory of 4180	4804	Quotation - SQ_HYD_003861.exe	86

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:4804
- 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:4180

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
e8a091953846fd5eb3bf73425a81cf20

SHA1
890e7d92a6e79b8490223aae12bdeb481ca3258b

SHA256
d4ac192ce6c2bcf3023c55db878da9c6480a2a4863ad89f0fde4a5a0bd985a47

SHA512
fd33c05dac8d1256f05c8e091a845c2f6ae78ad10cc584e64752b936af2eb5b56c648d6855bdc3144041534a8536a44ec5314b22406bf3e46a3782b8044c813e

Download Submit
memory/4180-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4180-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4804-0-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

Filesize
4KB

Download
memory/4804-1-0x0000000000DA0000-0x0000000000E42000-memory.dmp

Filesize
648KB

Download
memory/4804-2-0x0000000005C80000-0x0000000006224000-memory.dmp

Filesize
5.6MB

Download
memory/4804-6-0x00000000059E0000-0x0000000005A66000-memory.dmp

Filesize
536KB

Download
memory/4804-5-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-17-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-4-0x0000000005720000-0x000000000572A000-memory.dmp

Filesize
40KB

Download
memory/4804-3-0x0000000005770000-0x0000000005802000-memory.dmp

Filesize
584KB

Download

Analysis

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