remcos | c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2

Analysis

max time kernel
118s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2024 18:53

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General

Target

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
Size

1.1MB
MD5

991d6659f0bbe3f8211229f64760c700
SHA1

bf8adf636855ec9c4fb6081a14063db204ef6d11
SHA256

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2
SHA512

bd759b62b781ed687d6095fb37d2d461b0d04d9cdbb88641b7c4e963afeefb9dbc1dccaefdab4d95fbb9b602042769b7e5d619108ac5465e4808c8f85180d784
SSDEEP

24576:XTbM8vhEjkGD+JV9SQTOk/t1nkNzE681ZWsx:+lKJjn1tZkyRbj

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

103.195.236.227:2728

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-2OT6B6
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

Processes:

powershell.exepowershell.exe

pid	Process
1772	powershell.exe
3552	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

description	pid	Process	procid_target
PID 3284 set thread context of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93

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:

schtasks.exec3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exec3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exepowershell.exepowershell.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
3620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exepowershell.exepowershell.exe

pid	Process
3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
1772	powershell.exe
3552	powershell.exe
1772	powershell.exe
3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
3552	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
Token: SeDebugPrivilege	1772	powershell.exe
Token: SeDebugPrivilege	3552	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

description	pid	Process	procid_target
PID 3284 wrote to memory of 1772	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	87
PID 3284 wrote to memory of 1772	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	87
PID 3284 wrote to memory of 1772	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	87
PID 3284 wrote to memory of 3552	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	89
PID 3284 wrote to memory of 3552	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	89
PID 3284 wrote to memory of 3552	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	89
PID 3284 wrote to memory of 3620	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	91
PID 3284 wrote to memory of 3620	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	91
PID 3284 wrote to memory of 3620	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	91
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93
PID 3284 wrote to memory of 2912	3284	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	93

C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
"C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3284
- 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\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1772
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BnsrwgWu.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3552
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BnsrwgWu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD244.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3620
- C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
  "C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qtjf202h.hud.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD244.tmp

Filesize
1KB

MD5
ad956a75b8c511b3659fbdeced688800

SHA1
deac88860c3ada151b67723fd49e74089b7215bd

SHA256
98909e4039de7c8329fd0ac18a967de7c0b9b79831a05391ecca5f6ba8efc884

SHA512
1a59c51ff1259dc6b2f5266d99ff2b037aa95019fbaa51430c2f72133f01892830d57bd3d2befd3c3aea4c5b697313f47e962b2fe6db40faf4ec47a079c4c776

Download Submit
memory/1772-50-0x0000000006770000-0x00000000067BC000-memory.dmp

Filesize
304KB

Download
memory/1772-46-0x00000000066E0000-0x00000000066FE000-memory.dmp

Filesize
120KB

Download
memory/1772-70-0x00000000076D0000-0x0000000007773000-memory.dmp

Filesize
652KB

Download
memory/1772-69-0x0000000007670000-0x000000000768E000-memory.dmp

Filesize
120KB

Download
memory/1772-56-0x0000000007690000-0x00000000076C2000-memory.dmp

Filesize
200KB

Download
memory/1772-59-0x000000006FD10000-0x000000006FD5C000-memory.dmp

Filesize
304KB

Download
memory/1772-22-0x0000000005630000-0x0000000005652000-memory.dmp

Filesize
136KB

Download
memory/1772-82-0x0000000007A20000-0x0000000007A3A000-memory.dmp

Filesize
104KB

Download
memory/1772-83-0x0000000007A90000-0x0000000007A9A000-memory.dmp

Filesize
40KB

Download
memory/1772-15-0x0000000005170000-0x00000000051A6000-memory.dmp

Filesize
216KB

Download
memory/1772-16-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/1772-17-0x0000000005940000-0x0000000005F68000-memory.dmp

Filesize
6.2MB

Download
memory/1772-18-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/1772-19-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/1772-93-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/2912-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-94-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3284-5-0x0000000005990000-0x000000000599A000-memory.dmp

Filesize
40KB

Download
memory/3284-0-0x00000000752EE000-0x00000000752EF000-memory.dmp

Filesize
4KB

Download
memory/3284-52-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3284-8-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3284-7-0x00000000752EE000-0x00000000752EF000-memory.dmp

Filesize
4KB

Download
memory/3284-6-0x0000000008030000-0x000000000804C000-memory.dmp

Filesize
112KB

Download
memory/3284-10-0x000000000ACB0000-0x000000000AD4C000-memory.dmp

Filesize
624KB

Download
memory/3284-4-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3284-9-0x0000000008590000-0x0000000008654000-memory.dmp

Filesize
784KB

Download
memory/3284-1-0x0000000000CC0000-0x0000000000DE8000-memory.dmp

Filesize
1.2MB

Download
memory/3284-3-0x0000000005800000-0x0000000005892000-memory.dmp

Filesize
584KB

Download
memory/3284-2-0x0000000005DB0000-0x0000000006354000-memory.dmp

Filesize
5.6MB

Download
memory/3552-85-0x0000000007280000-0x0000000007291000-memory.dmp

Filesize
68KB

Download
memory/3552-92-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3552-86-0x00000000072B0000-0x00000000072BE000-memory.dmp

Filesize
56KB

Download
memory/3552-87-0x00000000072C0000-0x00000000072D4000-memory.dmp

Filesize
80KB

Download
memory/3552-88-0x00000000073C0000-0x00000000073DA000-memory.dmp

Filesize
104KB

Download
memory/3552-89-0x00000000073A0000-0x00000000073A8000-memory.dmp

Filesize
32KB

Download
memory/3552-81-0x00000000076C0000-0x0000000007D3A000-memory.dmp

Filesize
6.5MB

Download
memory/3552-84-0x0000000007300000-0x0000000007396000-memory.dmp

Filesize
600KB

Download
memory/3552-71-0x000000006FD10000-0x000000006FD5C000-memory.dmp

Filesize
304KB

Download
memory/3552-21-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3552-43-0x0000000005780000-0x0000000005AD4000-memory.dmp

Filesize
3.3MB

Download
memory/3552-20-0x00000000752E0000-0x0000000075A90000-memory.dmp

Filesize
7.7MB

Download
memory/3552-24-0x0000000005710000-0x0000000005776000-memory.dmp

Filesize
408KB

Download
memory/3552-23-0x0000000004E20000-0x0000000004E86000-memory.dmp

Filesize
408KB

Download