remcos | 446f71d11ea1f792d1d7346723e4a907fbff6cd164bcf2f31605d77eeab84a93

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-09-2024 07:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Bordereau de versement.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

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
2840	powershell.exe
2912	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 2236	2720	Bordereau de versement.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Bordereau de versement.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	Bordereau de versement.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
2820	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2720	Bordereau de versement.exe
2720	Bordereau de versement.exe
2720	Bordereau de versement.exe
2720	Bordereau de versement.exe
2720	Bordereau de versement.exe
2720	Bordereau de versement.exe
2840	powershell.exe
2912	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2720	Bordereau de versement.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	2912	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2912	2720	Bordereau de versement.exe	29
PID 2720 wrote to memory of 2912	2720	Bordereau de versement.exe	29
PID 2720 wrote to memory of 2912	2720	Bordereau de versement.exe	29
PID 2720 wrote to memory of 2912	2720	Bordereau de versement.exe	29
PID 2720 wrote to memory of 2840	2720	Bordereau de versement.exe	31
PID 2720 wrote to memory of 2840	2720	Bordereau de versement.exe	31
PID 2720 wrote to memory of 2840	2720	Bordereau de versement.exe	31
PID 2720 wrote to memory of 2840	2720	Bordereau de versement.exe	31
PID 2720 wrote to memory of 2820	2720	Bordereau de versement.exe	33
PID 2720 wrote to memory of 2820	2720	Bordereau de versement.exe	33
PID 2720 wrote to memory of 2820	2720	Bordereau de versement.exe	33
PID 2720 wrote to memory of 2820	2720	Bordereau de versement.exe	33
PID 2720 wrote to memory of 2220	2720	Bordereau de versement.exe	35
PID 2720 wrote to memory of 2220	2720	Bordereau de versement.exe	35
PID 2720 wrote to memory of 2220	2720	Bordereau de versement.exe	35
PID 2720 wrote to memory of 2220	2720	Bordereau de versement.exe	35
PID 2720 wrote to memory of 2832	2720	Bordereau de versement.exe	36
PID 2720 wrote to memory of 2832	2720	Bordereau de versement.exe	36
PID 2720 wrote to memory of 2832	2720	Bordereau de versement.exe	36
PID 2720 wrote to memory of 2832	2720	Bordereau de versement.exe	36
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37
PID 2720 wrote to memory of 2236	2720	Bordereau de versement.exe	37

C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe
"C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2720
- 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\Bordereau de versement.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2912
- 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:2840
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HssCNlssJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C10.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2820
- C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe
  "C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe"
  2⤵
  PID:2220
- C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe
  "C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe"
  2⤵
  PID:2832
- C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe
  "C:\Users\Admin\AppData\Local\Temp\Bordereau de versement.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2236

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2C10.tmp

Filesize
1KB

MD5
b4bd03ed3164180143d9216b7dbdb8fc

SHA1
c4931d0c1b72c3d878b673c975cf37cd2a8fc86c

SHA256
813566d6034b7249428d1027e5671c5c5835fa8904526085993fcdc2a1262a0b

SHA512
b440e357792bf7adca98a5e04396b046e140732c758bd185f2b76facc1b596f5f5f28ed2db6e8600039e23267aa570fecbaebc3934f7433e90d9d4520f0333e2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\9MJSSMG8IEFZQHMOC81O.temp

Filesize
7KB

MD5
5182f9ad9ee1e4bffe1a5ff51834cf33

SHA1
2f727ca0da480176af5ae9570df1040886aa4e87

SHA256
4dbc224b6a515ee273f120967bd9030c293f75b6b3a1ab437f7ac09c795035d5

SHA512
9990b15062a35d81515478c85ef31c0050f8cae511893b9d49b4d980dbb8d6dbed37772c9d4591cdf189b6c1841d2a92eedd8e77a737c2e2fca383b884a50280

Download Submit
memory/2236-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2236-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2236-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-3-0x0000000000380000-0x000000000038E000-memory.dmp

Filesize
56KB

Download
memory/2720-6-0x00000000053E0000-0x000000000549E000-memory.dmp

Filesize
760KB

Download
memory/2720-40-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-1-0x0000000000290000-0x000000000036A000-memory.dmp

Filesize
872KB

Download
memory/2720-2-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-0-0x000000007440E000-0x000000007440F000-memory.dmp

Filesize
4KB

Download
memory/2720-5-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-4-0x000000007440E000-0x000000007440F000-memory.dmp

Filesize
4KB

Download