remcos | 258aae78aa178a34b2f402cb55f35d159ca4e69dea10f4ad82462f701022b01e

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-11-2024 05:53

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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

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 1652 set thread context of 2324	1652	Quotation - SQ_HYD_003861.exe	31

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 behavior: EnumeratesProcesses 2 IoCs

pid	Process
1652	Quotation - SQ_HYD_003861.exe
1652	Quotation - SQ_HYD_003861.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	Quotation - SQ_HYD_003861.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2324	Quotation - SQ_HYD_003861.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 2308	1652	Quotation - SQ_HYD_003861.exe	30
PID 1652 wrote to memory of 2308	1652	Quotation - SQ_HYD_003861.exe	30
PID 1652 wrote to memory of 2308	1652	Quotation - SQ_HYD_003861.exe	30
PID 1652 wrote to memory of 2308	1652	Quotation - SQ_HYD_003861.exe	30
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31
PID 1652 wrote to memory of 2324	1652	Quotation - SQ_HYD_003861.exe	31

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Users\Admin\AppData\Local\Temp\Quotation - SQ_HYD_003861.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation - SQ_HYD_003861.exe"
  2⤵
  PID:2308
- 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:2324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

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
a2a61b84a5911d979cd1597e952a324b

SHA1
36340f1e1e36b01f090f51e9a0419561933c3227

SHA256
1a8b4cb7a6c6aadaf3877ad20da74bb95d846dd8463f1e852fd050d275513cc7

SHA512
7fe4910558f895423f256363262d2a1f8c2244a3ad78e4ce0732dfd2e946926f17c0cf4c98eb7a5dbf65db423a48ebfa0ef1408ac7f105d5eeb9448689731720

Download Submit
memory/1652-22-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-1-0x0000000000E40000-0x0000000000EE2000-memory.dmp

Filesize
648KB

Download
memory/1652-2-0x0000000000DC0000-0x0000000000E46000-memory.dmp

Filesize
536KB

Download
memory/1652-20-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-0-0x000000007422E000-0x000000007422F000-memory.dmp

Filesize
4KB

Download
memory/2324-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-5-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-3-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2324-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2324-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download