remcos | 7b89d9d21df0727b96a4a4945b65c9ac3235460d10729a00b8ed90b0bac38993

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 06:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe
Size

634KB
MD5

c6a4ede79f469aeff5fae4e54199db5c
SHA1

a9951de52f36b4e95a010df44779b41ec743ed9e
SHA256

24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3
SHA512

66eec5bfda77b6de587a4c06074d5d15f6de0fd766d6d0f892838a040d4585a55e21c1831b72a378640bca939415cb70569d9e6929b0b282eca49b16b43c6f1c
SSDEEP

12288:iF4zKbnV6sNxDNo/L7dAjP6aqki2kU2hjjxlIszHnCi/jT4bC:ipnV9e/wP6a/i2kbPHN7Tz

Score

10^/10

remcos awa discovery rat

Malware Config

Extracted

Family

remcos

Botnet

awa

gdyhjjdhbvxgsfe.gotdns.ch:2718

Attributes

audio_folder
MicRecords
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
remcos
mouse_option
false
mutex
Rmc-J6C5A7
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Syrhhfdhddstem.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Syrhhfdhddstem.exe	Powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1820 set thread context of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33

System Location Discovery: System Language Discovery 1 TTPs 3 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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2824	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe
Token: SeDebugPrivilege	2824	Powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2764	RegSvcs.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2764	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2824	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	31
PID 1820 wrote to memory of 2824	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	31
PID 1820 wrote to memory of 2824	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	31
PID 1820 wrote to memory of 2824	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	31
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33
PID 1820 wrote to memory of 2764	1820	24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe	33

C:\Users\Admin\AppData\Local\Temp\24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe
"C:\Users\Admin\AppData\Local\Temp\24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\24a7cfba4eced3e2dfb8740645160b94c785dc99f7d68e91489ba8fc569134c3.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Syrhhfdhddstem.exe'
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2824
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2764

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

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
228B

MD5
6348cc9f60a5b863e6a770db119889d1

SHA1
328397dbe0fe97168af2c853ff6771c8db9fb80d

SHA256
1541de37bb8d7b67180d310d30619dab474dce525565cab77d897fd3f8cc812e

SHA512
05d7709f364565174787e7cad0d51eff7f9c7aeef49a444904ed0219dd039af664fa86bd8e402d8cbc26e3cc1dc9aaa6084d2c8ebfaac5592dd5768b70a2e9a1

Download Submit
memory/1820-23-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-5-0x00000000003F0000-0x000000000040C000-memory.dmp

Filesize
112KB

Download
memory/1820-21-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-17-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-19-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-6-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-29-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-27-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-26-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1820-3-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1820-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-4-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-15-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-13-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-11-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-9-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-7-0x00000000003F0000-0x0000000000405000-memory.dmp

Filesize
84KB

Download
memory/1820-30-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-1-0x0000000000BA0000-0x0000000000C42000-memory.dmp

Filesize
648KB

Download
memory/1820-49-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-44-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2764-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-56-0x000000006F960000-0x000000006FF0B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-59-0x000000006F960000-0x000000006FF0B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-55-0x000000006F960000-0x000000006FF0B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-33-0x000000006F961000-0x000000006F962000-memory.dmp

Filesize
4KB

Download