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 1720 set thread context of 2388	1720	Quotation - SQ_HYD_003861.exe	30

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
2388	Quotation - SQ_HYD_003861.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30
PID 1720 wrote to memory of 2388	1720	Quotation - SQ_HYD_003861.exe	30

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:1720
- 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:2388

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
2475b9bb7cb3eb582f9c6bdf0be8577f

SHA1
055a8cb23e7b7efc368085b569b9bc1227545fd1

SHA256
8c494fa7993063aae2d17882261705d483eb88a15e67914bc96cb1946e349f30

SHA512
c78d004d58373b81f10471f901826e7382fb76b2a6c2a6c552f7f766cf2506208fd609f792011459a54df9a32cd0a87a753cc97b1b80a701f2d5b98fd4423239

Download Submit
memory/1720-0-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/1720-1-0x0000000000FA0000-0x0000000001042000-memory.dmp

Filesize
648KB

Download
memory/1720-2-0x0000000004AB0000-0x0000000004B36000-memory.dmp

Filesize
536KB

Download
memory/1720-22-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1720-15-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2388-4-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2388-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-3-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2388-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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