remcos | c6c21a9e00bd6cb9fd555ae4f413f47fb311f62e1229db1614ea4b2271fe7df4

General

Target

Chase_Bank_Payemnt_Advice.bat.exe
Size

1.1MB
MD5

b020367cee5bec0b6ac99f0b6bbfdade
SHA1

5bd27e290058d092b7d97571c4047d8b4952b8ca
SHA256

c6c21a9e00bd6cb9fd555ae4f413f47fb311f62e1229db1614ea4b2271fe7df4
SHA512

01b91cf3eb2bc10b6e5d7b47a99704f5c5bd8dcab92c8e7109b54b58f8e613b38c99bad124a1a58497aa049436cf842779bc7cf349ee7d34b3bb9bfd94b88465
SSDEEP

12288:GL13yaZWVlyj7WLVgy/GnUSeDCAuctlZufGEG9Wlfeg96T8Omqivd9ecnnIv17Ly:GL13JSo3Q7/zKcNiGEG9W0/sqcnS7O

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

41.216.183.238:7112

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-Y7J88P
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
2500	powershell.exe
2828	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Chase_Bank_Payemnt_Advice.bat.exe

description	pid	Process	procid_target
PID 2532 set thread context of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37

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:

Chase_Bank_Payemnt_Advice.bat.exepowershell.exepowershell.exeschtasks.exeChase_Bank_Payemnt_Advice.bat.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Chase_Bank_Payemnt_Advice.bat.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	Chase_Bank_Payemnt_Advice.bat.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
2892	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Chase_Bank_Payemnt_Advice.bat.exepowershell.exepowershell.exe

pid	Process
2532	Chase_Bank_Payemnt_Advice.bat.exe
2532	Chase_Bank_Payemnt_Advice.bat.exe
2532	Chase_Bank_Payemnt_Advice.bat.exe
2532	Chase_Bank_Payemnt_Advice.bat.exe
2500	powershell.exe
2828	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Chase_Bank_Payemnt_Advice.bat.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2532	Chase_Bank_Payemnt_Advice.bat.exe
Token: SeDebugPrivilege	2500	powershell.exe
Token: SeDebugPrivilege	2828	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

Chase_Bank_Payemnt_Advice.bat.exe

description	pid	Process	procid_target
PID 2532 wrote to memory of 2500	2532	Chase_Bank_Payemnt_Advice.bat.exe	31
PID 2532 wrote to memory of 2500	2532	Chase_Bank_Payemnt_Advice.bat.exe	31
PID 2532 wrote to memory of 2500	2532	Chase_Bank_Payemnt_Advice.bat.exe	31
PID 2532 wrote to memory of 2500	2532	Chase_Bank_Payemnt_Advice.bat.exe	31
PID 2532 wrote to memory of 2828	2532	Chase_Bank_Payemnt_Advice.bat.exe	33
PID 2532 wrote to memory of 2828	2532	Chase_Bank_Payemnt_Advice.bat.exe	33
PID 2532 wrote to memory of 2828	2532	Chase_Bank_Payemnt_Advice.bat.exe	33
PID 2532 wrote to memory of 2828	2532	Chase_Bank_Payemnt_Advice.bat.exe	33
PID 2532 wrote to memory of 2892	2532	Chase_Bank_Payemnt_Advice.bat.exe	34
PID 2532 wrote to memory of 2892	2532	Chase_Bank_Payemnt_Advice.bat.exe	34
PID 2532 wrote to memory of 2892	2532	Chase_Bank_Payemnt_Advice.bat.exe	34
PID 2532 wrote to memory of 2892	2532	Chase_Bank_Payemnt_Advice.bat.exe	34
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37
PID 2532 wrote to memory of 2952	2532	Chase_Bank_Payemnt_Advice.bat.exe	37

C:\Users\Admin\AppData\Local\Temp\Chase_Bank_Payemnt_Advice.bat.exe
"C:\Users\Admin\AppData\Local\Temp\Chase_Bank_Payemnt_Advice.bat.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2532
- 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\Chase_Bank_Payemnt_Advice.bat.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2500
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YBCZARqbWZsvUc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YBCZARqbWZsvUc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF170.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2892
- C:\Users\Admin\AppData\Local\Temp\Chase_Bank_Payemnt_Advice.bat.exe
  "C:\Users\Admin\AppData\Local\Temp\Chase_Bank_Payemnt_Advice.bat.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952

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\tmpF170.tmp

Filesize
1KB

MD5
e8b2a28a5d9fb823406a90d5830cd616

SHA1
5b329b003096ece93197850f0d073a97b89165d7

SHA256
f41c4b7cfc72ad2544ac1cca017771815a1d79e4c44e05e18ed08e9ea2718452

SHA512
cd0b75c97f938fc083bd7d4017f1ea565661ef9a1feb1ffa4014867c4a7fe69193a3caf3cdcf7f62381a11c108322eeb6d87f83d2861dc3d922887c88e671762

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

Filesize
7KB

MD5
809895a779a336786b2e110a0c38462f

SHA1
259235e6637e84a167188e74135de95a019e8fae

SHA256
e24c6182c83319074600eb30d608e1de614f0f750549216611fd862766c0ccaa

SHA512
5a59cc2a6b217cd15dfe348b168edb9f33804e72e3117879028bf8151776e58627437258c886a8ec99e3c6a6616c700929af51b9d70a0f82b18347440099d3e6

Download Submit
memory/2532-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

Filesize
4KB

Download
memory/2532-1-0x00000000009C0000-0x0000000000ADC000-memory.dmp

Filesize
1.1MB

Download
memory/2532-2-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-3-0x0000000000430000-0x000000000044C000-memory.dmp

Filesize
112KB

Download
memory/2532-4-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

Filesize
4KB

Download
memory/2532-5-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2532-6-0x0000000005D90000-0x0000000005E50000-memory.dmp

Filesize
768KB

Download
memory/2532-40-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/2952-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2952-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2952-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads