remcos | c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
2612	powershell.exe
2780	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

description	pid	Process	procid_target
PID 2872 set thread context of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.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:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exepowershell.exepowershell.exeschtasks.exec3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.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
2608	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exepowershell.exepowershell.exe

pid	Process
2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
2780	powershell.exe
2612	powershell.exe
2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
Token: SeDebugPrivilege	2780	powershell.exe
Token: SeDebugPrivilege	2612	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe

description	pid	Process	procid_target
PID 2872 wrote to memory of 2612	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	30
PID 2872 wrote to memory of 2612	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	30
PID 2872 wrote to memory of 2612	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	30
PID 2872 wrote to memory of 2612	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	30
PID 2872 wrote to memory of 2780	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	32
PID 2872 wrote to memory of 2780	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	32
PID 2872 wrote to memory of 2780	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	32
PID 2872 wrote to memory of 2780	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	32
PID 2872 wrote to memory of 2608	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	34
PID 2872 wrote to memory of 2608	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	34
PID 2872 wrote to memory of 2608	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	34
PID 2872 wrote to memory of 2608	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	34
PID 2872 wrote to memory of 2968	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	36
PID 2872 wrote to memory of 2968	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	36
PID 2872 wrote to memory of 2968	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	36
PID 2872 wrote to memory of 2968	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	36
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37
PID 2872 wrote to memory of 3016	2872	c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe	37

C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
"C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872
- 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:2612
- 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:2780
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BnsrwgWu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp33DC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2608
- C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
  "C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe"
  2⤵
  PID:2968
- C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe
  "C:\Users\Admin\AppData\Local\Temp\c3698a5047a0c4d938f5f64c12b72aa6f2571947e0216fe13652cb2fb26d80f2N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3016

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp33DC.tmp

Filesize
1KB

MD5
e6b26d9e3c6a10be50a5823b489304bd

SHA1
402ab40b28ae76b4bd3a5be9af4b4c64295a5c20

SHA256
07054c99770903b0ebde735dbf39e2ddcd675379af0cb1e149584e88ab1b63c0

SHA512
18f6acb88122db23fe4381773759dd81d18274b779a71e223a3bd9af2a97f3490bdb20a7c3e73d192ca8806b398dcdad8a0ea884c8cd15f756c7aaec33d3a8da

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

Filesize
7KB

MD5
aaf6bc27f262897db31f2ab33ebded29

SHA1
96bf16da596e6d0bc4e6a4b550a1a6c172564d23

SHA256
757e0fbad62d517d036969589173a5d1c01d844ca544a475dbacd240e737dec7

SHA512
7a609338e3f906fd11212ec6dddccd48fc694f782d44d174c7bf2efc26ae29dc0dea8c97dd732098e37502b6bee09bc603872e46e79b0ebb2dcf7b3dfb5f135a

Download Submit
memory/2872-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/2872-1-0x0000000000110000-0x0000000000238000-memory.dmp

Filesize
1.2MB

Download
memory/2872-2-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/2872-3-0x00000000003C0000-0x00000000003DC000-memory.dmp

Filesize
112KB

Download
memory/2872-4-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

Filesize
4KB

Download
memory/2872-5-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/2872-6-0x0000000005E00000-0x0000000005EC4000-memory.dmp

Filesize
784KB

Download
memory/2872-36-0x0000000073F10000-0x00000000745FE000-memory.dmp

Filesize
6.9MB

Download
memory/3016-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3016-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3016-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download