remcos | bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351

General

Target

bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe
Size

849KB
MD5

90b3d027e4e43d4c867f04b4c89c8589
SHA1

c23bed92fbe828fa9699115d15e0296ba18ca561
SHA256

bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351
SHA512

c5ad505038b66cc8388cfd8d558734663ab3a01e648fe91a25f3103e0493d78e42d03d7090a6738fbf0acda474511be9af57b0416618df3cfb089bb326b82fe4
SSDEEP

24576:wWnj81akfCViEDhkD+08jwUNH7wMOYfcuLTJdHRa:wWg1akf8iehgzIHJ7wMODIVdHRa

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
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

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

pid	Process
2800	powershell.exe
2564	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2916 set thread context of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.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	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.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
2812	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe
2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe
2800	powershell.exe
2564	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	2564	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2800	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	30
PID 2916 wrote to memory of 2800	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	30
PID 2916 wrote to memory of 2800	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	30
PID 2916 wrote to memory of 2800	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	30
PID 2916 wrote to memory of 2564	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	32
PID 2916 wrote to memory of 2564	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	32
PID 2916 wrote to memory of 2564	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	32
PID 2916 wrote to memory of 2564	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	32
PID 2916 wrote to memory of 2812	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	34
PID 2916 wrote to memory of 2812	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	34
PID 2916 wrote to memory of 2812	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	34
PID 2916 wrote to memory of 2812	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	34
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36
PID 2916 wrote to memory of 2572	2916	bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe	36

C:\Users\Admin\AppData\Local\Temp\bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe
"C:\Users\Admin\AppData\Local\Temp\bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2916
- 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\bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2800
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HssCNlssJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2564
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HssCNlssJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp34E6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2812
- C:\Users\Admin\AppData\Local\Temp\bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe
  "C:\Users\Admin\AppData\Local\Temp\bac49390230b8d170af75761bf64a3e877b570bea0c9b5ba73dd54a7fab5c351.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2572

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp34E6.tmp

Filesize
1KB

MD5
c61e128302c2350708a47108ecc568d4

SHA1
9c4c7cacf0726e372dde2fe2bbaf2b28b4e74db8

SHA256
0a51b7d4fee183eff6779e5e6cd06015433ed491ed7948ee9283371f65499731

SHA512
ca9e6baa2c57e8885c81db39359d3d79fce270de1c9b60637fccc7510fdaa83accce2865124e971657507f1af33e0bf1b81b040ec867ebdbb59e54ab22bdbf3b

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

Filesize
7KB

MD5
8bec39e135adef370a676d1a2370fedc

SHA1
a8573d616834fe90a9e26443de990cc3714e81d3

SHA256
8ddc462fbebd8dfaa146b26cb70a79213fcfa70d69219286cf77e572139e53d0

SHA512
3fe27d73b39e727e215e8c658209b114400188c88b172ba9e0805d1229825515b8a739670a6eb9d5f3cf7c4e8ac2231b85760387043b4127f42e0520c9680ca5

Download Submit
memory/2572-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2572-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2572-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2916-40-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/2916-3-0x00000000004D0000-0x00000000004DE000-memory.dmp

Filesize
56KB

Download
memory/2916-6-0x00000000054F0000-0x00000000055AE000-memory.dmp

Filesize
760KB

Download
memory/2916-1-0x00000000010D0000-0x00000000011AA000-memory.dmp

Filesize
872KB

Download
memory/2916-2-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/2916-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/2916-5-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/2916-4-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads