remcos | c32ea8077e7ce687a02e17d5ac417a30eeede72e9924ddfd7499058c080f0601

General

Target

BC6FCAFD4222698991CCE632CFF5C381.exe
Size

1.2MB
MD5

bc6fcafd4222698991cce632cff5c381
SHA1

186c2cbf65fc0d81c3ef6910d19fad2ab1f75ea7
SHA256

c32ea8077e7ce687a02e17d5ac417a30eeede72e9924ddfd7499058c080f0601
SHA512

576d3c5de0ab7343d49809c0521c4d6aa832d89aac0b738127a6784484b405e7945f20384a31e83f4206a2a75c233dbd6055427ffc6f0825d54cf59615a6a036
SSDEEP

24576:yAHnh+eWsN3skA4RV1Hom2KXMmHaPy1rhVvEZwl6Ywr426hM5:1h+ZkldoPK8YaPEhVewl6JQQ

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

dapper3310.duckdns.org:9422

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-VGKK8N
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
Remcos family
remcos

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vehiculate.vbs	vehiculate.exe

Executes dropped EXE 1 IoCs

pid	Process
2592	vehiculate.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0007000000023c9d-13.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2592 set thread context of 1984	2592	vehiculate.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	BC6FCAFD4222698991CCE632CFF5C381.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vehiculate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2592	vehiculate.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
3256	BC6FCAFD4222698991CCE632CFF5C381.exe
3256	BC6FCAFD4222698991CCE632CFF5C381.exe
2592	vehiculate.exe
2592	vehiculate.exe
1984	svchost.exe

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
3256	BC6FCAFD4222698991CCE632CFF5C381.exe
3256	BC6FCAFD4222698991CCE632CFF5C381.exe
2592	vehiculate.exe
2592	vehiculate.exe
1984	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3256 wrote to memory of 2592	3256	BC6FCAFD4222698991CCE632CFF5C381.exe	83
PID 3256 wrote to memory of 2592	3256	BC6FCAFD4222698991CCE632CFF5C381.exe	83
PID 3256 wrote to memory of 2592	3256	BC6FCAFD4222698991CCE632CFF5C381.exe	83
PID 2592 wrote to memory of 1984	2592	vehiculate.exe	84
PID 2592 wrote to memory of 1984	2592	vehiculate.exe	84
PID 2592 wrote to memory of 1984	2592	vehiculate.exe	84
PID 2592 wrote to memory of 1984	2592	vehiculate.exe	84

C:\Users\Admin\AppData\Local\Temp\BC6FCAFD4222698991CCE632CFF5C381.exe
"C:\Users\Admin\AppData\Local\Temp\BC6FCAFD4222698991CCE632CFF5C381.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Users\Admin\AppData\Local\obtenebrate\vehiculate.exe
  "C:\Users\Admin\AppData\Local\Temp\BC6FCAFD4222698991CCE632CFF5C381.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\BC6FCAFD4222698991CCE632CFF5C381.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:1984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\bezzo

Filesize
469KB

MD5
a63ff4032fb718ec6fd6f9f6284dba4e

SHA1
1672ca72c98d6d5250b92a77587e657a1658303a

SHA256
66bb1055ee00254a23880e2985c1f8c190770c7be8bbfe3ddaec73742ed6ef5f

SHA512
b2356747758f84417e7aa336951306e4f8a92c335bc65abb9f8413f964565c3b8c06cdb1462c13f3a62244dcb28d484064ad5a2906dcbcdd24188259dfaa0245

Download Submit
C:\Users\Admin\AppData\Local\Temp\peaks

Filesize
28KB

MD5
c9fb2c8fcf97d2a498a2e98d66422a48

SHA1
a8cdb4816a2654cee019f5a77e21d3dc8b59d78c

SHA256
83ae032345f8c5806746a99089fa95766e94fa6eaa88e62a4a9e4f1c3208e572

SHA512
518ed1643b93945d89b9d4b04953feb1a74b03519077c0effb4781f2c9e9cc56c74fada052980aa6e760f2fb9379978b2f566923b0951d80bafd2d64d170b51c

Download Submit
C:\Users\Admin\AppData\Local\obtenebrate\vehiculate.exe

Filesize
1.2MB

MD5
bc6fcafd4222698991cce632cff5c381

SHA1
186c2cbf65fc0d81c3ef6910d19fad2ab1f75ea7

SHA256
c32ea8077e7ce687a02e17d5ac417a30eeede72e9924ddfd7499058c080f0601

SHA512
576d3c5de0ab7343d49809c0521c4d6aa832d89aac0b738127a6784484b405e7945f20384a31e83f4206a2a75c233dbd6055427ffc6f0825d54cf59615a6a036

Download Submit
memory/1984-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1984-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3256-10-0x0000000001D60000-0x0000000001D64000-memory.dmp

Filesize
16KB

Download

Analysis

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