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 3556 set thread context of 4784	3556	Quotation - SQ_HYD_003861.exe	83

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
4784	Quotation - SQ_HYD_003861.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83
PID 3556 wrote to memory of 4784	3556	Quotation - SQ_HYD_003861.exe	83

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:3556
- 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:4784

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
e614fde3274230581c94ca7633c1da69

SHA1
f8ab01d89895dcb450e0fc192f11239444636654

SHA256
e24fffeb8d4fd5eaac85da59fe3eb3cdb326d9f307c914f183316d5eb31d21fe

SHA512
bce7234ff939be38dd6825a5beac232c27b3b0bd3b74fe1a542d13d3737dc7ba0f67ff7e68d242c029e379cd89f4752857ca7e82fb7aeab111075e47ac01e708

Download Submit
memory/3556-17-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3556-1-0x0000000000DE0000-0x0000000000E82000-memory.dmp

Filesize
648KB

Download
memory/3556-2-0x0000000005F30000-0x00000000064D4000-memory.dmp

Filesize
5.6MB

Download
memory/3556-3-0x0000000005870000-0x0000000005902000-memory.dmp

Filesize
584KB

Download
memory/3556-4-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3556-5-0x0000000005930000-0x000000000593A000-memory.dmp

Filesize
40KB

Download
memory/3556-6-0x0000000005AF0000-0x0000000005B76000-memory.dmp

Filesize
536KB

Download
memory/3556-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/4784-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4784-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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