remcos | b4d1b79459e02f66fae43fa71b6422be611fc7595306875ad87eddaa0e07ac5c

General

Target

Quotation.exe
Size

1.0MB
MD5

67b86e9595c2d0d2f44454ec239fda56
SHA1

1a44600a7b4e010174d99c152dc20fef1d84061a
SHA256

905eb3c354f4f1210442b25983482a2612d6354df9c3d26beb9a0bdaf1e9ac04
SHA512

73fb542c826f8e75683e7944f0f616d2317d17c5cc153610e7d2107c6da7458da00c89e797aa4f59c92d92095dcf884ef9474cf7ac5dcc4bf526aa8389486604
SSDEEP

24576:BHAXaxESQklIlQcZrVs+3FvrVOuHvKYKrVFmdGp7N1/TBt:BgAlFUrv3FjwuPKYaGK/t

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.241.208.87:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-7DRXD9
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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

pid	Process
2116	powershell.exe
2788	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2072 set thread context of 2712	2072	Quotation.exe	38

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	Quotation.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

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
2696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2072	Quotation.exe
2072	Quotation.exe
2072	Quotation.exe
2072	Quotation.exe
2072	Quotation.exe
2072	Quotation.exe
2072	Quotation.exe
2072	Quotation.exe
2072	Quotation.exe
2116	powershell.exe
2788	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	Quotation.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeDebugPrivilege	2788	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2116	2072	Quotation.exe	31
PID 2072 wrote to memory of 2116	2072	Quotation.exe	31
PID 2072 wrote to memory of 2116	2072	Quotation.exe	31
PID 2072 wrote to memory of 2116	2072	Quotation.exe	31
PID 2072 wrote to memory of 2788	2072	Quotation.exe	33
PID 2072 wrote to memory of 2788	2072	Quotation.exe	33
PID 2072 wrote to memory of 2788	2072	Quotation.exe	33
PID 2072 wrote to memory of 2788	2072	Quotation.exe	33
PID 2072 wrote to memory of 2696	2072	Quotation.exe	35
PID 2072 wrote to memory of 2696	2072	Quotation.exe	35
PID 2072 wrote to memory of 2696	2072	Quotation.exe	35
PID 2072 wrote to memory of 2696	2072	Quotation.exe	35
PID 2072 wrote to memory of 2708	2072	Quotation.exe	37
PID 2072 wrote to memory of 2708	2072	Quotation.exe	37
PID 2072 wrote to memory of 2708	2072	Quotation.exe	37
PID 2072 wrote to memory of 2708	2072	Quotation.exe	37
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38
PID 2072 wrote to memory of 2712	2072	Quotation.exe	38

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072
- 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\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2116
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hVWuVAdS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hVWuVAdS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp477C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2696
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:2708
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:2712

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\tmp477C.tmp

Filesize
1KB

MD5
2387feaf2f43c8ccb8335eb1c60dbcdb

SHA1
ca53aedcaf88ac127317f5bd2bbf16685dade3c6

SHA256
f2cee57d5d43a4ad905cc725c1f6145d9d833d29a1d510b9a3115cb76e035352

SHA512
f081b88feae61f24e6c3981d578e1eefbb5dd4c4f439ca716b2d7878a2cdcd5a8b96bda6975be93b1db19271fce43df6a4860053b8eb86d832de13f32b13c994

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

Filesize
7KB

MD5
1bdc9f298394c1bab5f818fcc5f7415a

SHA1
8542289ed9cc5693bb537f65450e6fd8c57f65ec

SHA256
760736c8fbbfccbe2c85e3a1d7d858656a3f272ac65540e39b06b0babe2cfd0a

SHA512
f2868c846f5c94488ee9757ba2105a47885d983090d05c06fed1f70a9992cdb65499ba56a06a6c3a21050fd7418b0c524119046a45f1d9930930af0a430a581c

Download Submit
memory/2072-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2072-1-0x0000000001290000-0x000000000139C000-memory.dmp

Filesize
1.0MB

Download
memory/2072-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2072-3-0x00000000005F0000-0x0000000000608000-memory.dmp

Filesize
96KB

Download
memory/2072-4-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2072-5-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2072-6-0x0000000004B60000-0x0000000004C22000-memory.dmp

Filesize
776KB

Download
memory/2072-36-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2712-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2712-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads