remcos | 66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-09-2024 16:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe
Size

851KB
MD5

ff6f202ace40743852a03f34b7b41707
SHA1

31e96d82538ecd77f5a190bbc070065cb64bd12b
SHA256

66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490
SHA512

94edc736129032ae8c07db023f9d264c9743aab4cf2d294de995d780c71dcda33b7637a23e8161dbdf830fa4affd030bbe3912d7d0acc5b9061b81ee42e8d174
SSDEEP

24576:KYBfQYzELibC4jGl7Wud08XzvFn9j5Utq:KYBtbC4ql0ozt9j5Ut

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

107.175.229.139:8823

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-2BGC0K
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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2264 set thread context of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2744	Powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2744	Powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	Powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2712	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2744	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	30
PID 2264 wrote to memory of 2744	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	30
PID 2264 wrote to memory of 2744	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	30
PID 2264 wrote to memory of 2744	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	30
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32
PID 2264 wrote to memory of 2712	2264	66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe	32

C:\Users\Admin\AppData\Local\Temp\66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe
"C:\Users\Admin\AppData\Local\Temp\66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744
- C:\Users\Admin\AppData\Local\Temp\66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe
  "C:\Users\Admin\AppData\Local\Temp\66c50343775c162862ac27a735c66927a9b3fda4a05cd0eaa21fecbca3f6c490.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
1be38a5f30d01986e7b91991a4342723

SHA1
5a632f230989974afb58ac5b865a9ac3bef95f5a

SHA256
c3a36610eeacd970301cd6efa190c4f8d940a99cf8813e534611e0bc5878e055

SHA512
56e3626ab665101a51ac1827c78f200db20a6c080b7deb5ca84ea0be86b890256bf135b995bccacbd8e1aded237d36634dd92b0dcf727e727eef1a8e53e5f544

Download Submit
memory/2264-31-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2264-1-0x00000000008C0000-0x000000000099C000-memory.dmp

Filesize
880KB

Download
memory/2264-2-0x00000000009A0000-0x0000000000A4E000-memory.dmp

Filesize
696KB

Download
memory/2264-3-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2264-11-0x0000000000320000-0x0000000000328000-memory.dmp

Filesize
32KB

Download
memory/2264-0-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2712-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2744-6-0x000000006F9B1000-0x000000006F9B2000-memory.dmp

Filesize
4KB

Download
memory/2744-33-0x000000006F9B0000-0x000000006FF5B000-memory.dmp

Filesize
5.7MB

Download
memory/2744-10-0x000000006F9B0000-0x000000006FF5B000-memory.dmp

Filesize
5.7MB

Download
memory/2744-9-0x000000006F9B0000-0x000000006FF5B000-memory.dmp

Filesize
5.7MB

Download
memory/2744-7-0x000000006F9B0000-0x000000006FF5B000-memory.dmp

Filesize
5.7MB

Download
memory/2744-8-0x000000006F9B0000-0x000000006FF5B000-memory.dmp

Filesize
5.7MB

Download