remcos | db00ce1def9794a4f5533677848d58d84f6950c1f57572b877a591f4e5ba2dc2

General

Target

cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
Size

1.4MB
MD5

79fc587b75385d13a0aefbb63b8f83a5
SHA1

fa71271dfc2926c711a1adf676e42ba7ab5421fa
SHA256

cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3
SHA512

217f0a63af9960e7ac5e705da10b675d0ee8573396d819aa7e013766cd34c292e1afa8439d6c55c9f35e003fb06eb5278c2e8340a966da8e1c8b2a36498aa08d
SSDEEP

24576:QGnA++3gtc0rx4bYY8nwoTsSofnHZPvg4l7v7aeUYSikCqRy:6++3sOMwo6Z3zlzlBSikCk

Score

10^/10

remcos fresh port discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

FRESH PORT

C2

emarketinglatakva.ddns.net:9794

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-Z9DAML
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
take_screenshot_title
notepad;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2752	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2324 set thread context of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2892	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
2752	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
Token: SeDebugPrivilege	2752	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
536	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2752	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	31
PID 2324 wrote to memory of 2752	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	31
PID 2324 wrote to memory of 2752	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	31
PID 2324 wrote to memory of 2752	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	31
PID 2324 wrote to memory of 2892	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	33
PID 2324 wrote to memory of 2892	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	33
PID 2324 wrote to memory of 2892	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	33
PID 2324 wrote to memory of 2892	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	33
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35
PID 2324 wrote to memory of 536	2324	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	35

C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
"C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ijAhEpVZOK.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2752
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ijAhEpVZOK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6548.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2892
- C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
  "C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6548.tmp

Filesize
1KB

MD5
58af21a3a5d7194ebdc2dec3319257f2

SHA1
fab018245898e318c2189e9b2e47f579871a7459

SHA256
b644618662feb740ebe7977209809f3c10565a88ea7716a2a5f93f27b32dd5f5

SHA512
a2c540195085e37be971afb8a13481da67267f4720e4a08232fb1d77ec6ff387c749e9a277da12afb060bcd2a40fca921725b6abc0953090601bed7932e48da6

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
144B

MD5
aacd9e4106eba782d6dea28cf0b4c577

SHA1
89de0410a5f9d0d0c16724fe18bbb0cde92009e6

SHA256
6f53418534aed7397a4003924d14b6a65ffc7478dc62a3b531809576d64f765b

SHA512
3ffb53865d0e50d748abc7e445ded81db5c9213c68a7ebcedafa0c5358a5bcf8f6041def95592dcef25bdc67bb5fde18c84cdc9357b5193b31d8b22e9e94effb

Download Submit
memory/536-33-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-32-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-15-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-23-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-27-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-29-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/536-21-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-25-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-17-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-34-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-37-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/536-20-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2324-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2324-3-0x00000000004B0000-0x00000000004BA000-memory.dmp

Filesize
40KB

Download
memory/2324-1-0x0000000000A30000-0x0000000000B9A000-memory.dmp

Filesize
1.4MB

Download
memory/2324-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2324-14-0x0000000005FC0000-0x000000000603A000-memory.dmp

Filesize
488KB

Download
memory/2324-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2324-6-0x0000000008220000-0x0000000008362000-memory.dmp

Filesize
1.3MB

Download
memory/2324-38-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2324-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads