remcos | f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c

General

Target

f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe
Size

1.3MB
MD5

8d92ed1d30c078d35172f80528741e9f
SHA1

8a991c12aaba80da7a91a65dcb0cb29efe88078c
SHA256

f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c
SHA512

94618f2c58c94707331441fe5e6bd72cc8f8e38e5c3dc9d2299a62364b263a08b9be91b0b2e9da6e0db01dc00a43785604926302fac5d1499fcbf153c4e38305
SSDEEP

24576:ku6J33O0c+JY5UZ+XC0kGso6FaJtCLtY2tYIJzN1dVM2lqWY:eu0c++OCvkGs9FaJmPsSY

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

37.27.215.10:1331

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-ZTG52T
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5436 set thread context of 4348	5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe	89

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	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe
5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe
5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4348	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5436 wrote to memory of 4348	5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe	89
PID 5436 wrote to memory of 4348	5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe	89
PID 5436 wrote to memory of 4348	5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe	89
PID 5436 wrote to memory of 4348	5436	f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe	89

C:\Users\Admin\AppData\Local\Temp\f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe
"C:\Users\Admin\AppData\Local\Temp\f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe"
1⤵
- 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:5436
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\f8e7d4dd80dbc6310544d53632130b51e48cb2364fc66935a3abd61e2897062c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4348

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
a60c5505b2725c200c2c06cf7a6492c9

SHA1
0b0f7fe60dffb7c77e8c609b860d8f091625c179

SHA256
cdaf0a503717f9089035c399d8595a38cd60f7a255fccf941af9e433630aef49

SHA512
b114fe699811455cc5f9a2894ded29e151381ed4d334d0fbd7cf7ed8580e35754bdfd1c4f08cba7afb93173b1ad2d407580b31292a3b455a95c400bbbdeb9f8b

Download Submit
memory/4348-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4348-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5436-6-0x0000000001440000-0x0000000001840000-memory.dmp

Filesize
4.0MB

Download

Analysis

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