remcos | 4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee

Analysis

max time kernel
147s
max time network
144s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
28-11-2024 21:17

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General

Target

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
Size

1.0MB
MD5

7fe5f3f1d077626ddad8406b7975ed87
SHA1

23eba4f75b7960d9edd9679515771cc8ccfe0372
SHA256

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee
SHA512

70ff042c59b1fd4b0ffa18002d239e65ffdc32f7df2d079ba596551de2d23849d236eedcfb580d82e84cc68a2c911af295ef66458f56162bd89753484c9861d8
SSDEEP

24576:32CGzbZCkrpm1sHsqgQYKY4agvoR5ORGIemTzEp6VBw:32CGzbokNMqgQeOAKU1

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

41.216.183.218:56792

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-I5RS8V
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exe

pid	Process
2856	powershell.exe
2756	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe

description	pid	Process	procid_target
PID 2504 set thread context of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39

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 5 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

Processes:

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exepowershell.exepowershell.exeschtasks.exe4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.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

Processes:

schtasks.exe

pid	Process
2496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exepowershell.exepowershell.exe

pid	Process
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
2756	powershell.exe
2856	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
Token: SeDebugPrivilege	2756	powershell.exe
Token: SeDebugPrivilege	2856	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe

description	pid	Process	procid_target
PID 2504 wrote to memory of 2856	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	31
PID 2504 wrote to memory of 2856	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	31
PID 2504 wrote to memory of 2856	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	31
PID 2504 wrote to memory of 2856	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	31
PID 2504 wrote to memory of 2756	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	33
PID 2504 wrote to memory of 2756	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	33
PID 2504 wrote to memory of 2756	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	33
PID 2504 wrote to memory of 2756	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	33
PID 2504 wrote to memory of 2496	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	35
PID 2504 wrote to memory of 2496	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	35
PID 2504 wrote to memory of 2496	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	35
PID 2504 wrote to memory of 2496	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	35
PID 2504 wrote to memory of 2764	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	37
PID 2504 wrote to memory of 2764	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	37
PID 2504 wrote to memory of 2764	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	37
PID 2504 wrote to memory of 2764	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	37
PID 2504 wrote to memory of 2712	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	38
PID 2504 wrote to memory of 2712	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	38
PID 2504 wrote to memory of 2712	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	38
PID 2504 wrote to memory of 2712	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	38
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39
PID 2504 wrote to memory of 2872	2504	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	39

C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
"C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2856
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fanBYIAxatVKe.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2756
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fanBYIAxatVKe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFAA4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2496
- C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
  "C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe"
  2⤵
  PID:2764
- C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
  "C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe"
  2⤵
  PID:2712
- C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
  "C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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:\Users\Admin\AppData\Local\Temp\tmpFAA4.tmp

Filesize
1KB

MD5
3395177dd8b6f9474677611baa00526d

SHA1
98d56aac87b6903cbd8eee9199422d31d43285cf

SHA256
2d4d47dcbc71ff40c8c8f0284b578e71de2c35ffb879310c1cb76430f3737819

SHA512
690a82fb43b8b04a0c7ba601259605c226a53f84ce2295e6c4d964fa59c18a2a4866a64d469ca957b77b5104c871f3c4c14e9a36e060167d916e27522ca177fe

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
d050ec398a4da5e3a83254bf23993eb2

SHA1
cb57e18a96a868afce64e50e4a80b85f007f7c0a

SHA256
ced133091142d97faebf74123519645d6d219cd24d727afd8ba3e0d82b89413d

SHA512
baeaf3cff136683e5cd9ba095f6cc4d78f5cfdf95b701878ff62ca8f557cc7256c3ee203e1e2053504873b2da61c9499f79cc026b4e917bcbd8606d72e22b4c7

Download Submit
memory/2504-40-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2504-1-0x0000000000080000-0x0000000000184000-memory.dmp

Filesize
1.0MB

Download
memory/2504-2-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2504-3-0x0000000002010000-0x000000000202C000-memory.dmp

Filesize
112KB

Download
memory/2504-4-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/2504-5-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2504-6-0x0000000004E50000-0x0000000004F10000-memory.dmp

Filesize
768KB

Download
memory/2504-0-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/2872-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2872-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2872-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download