remcos | f389839a6216aea670545a89697ce85cc3a8c170961804cea96525c5ed1cb6e7

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-11-2024 18:27

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General

Target

20241125_BAON_19xxxxxx24.exe
Size

971KB
MD5

e83f4f4d3264f7f94ba49c93a110e0de
SHA1

373d0deb8e94fc157a5815de5bf32d44a38da74f
SHA256

f389839a6216aea670545a89697ce85cc3a8c170961804cea96525c5ed1cb6e7
SHA512

65934c2152fb2caa5099b1f8114c46066bde0af98e23996d58b2015a5120a16a3cf9b766ece96b051785c73a31b2fec6e321a2690aa40796ce711910ad09cedc
SSDEEP

24576:8eXJasfN3LrXZerh5r5R0hpoaxY+G9L4oZV:8cfN3LrQfr5Rupo5CoZV

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

yabobo.duckdns.org:6847

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-0VPBW5
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

20241125_BAON_19xxxxxx24.exe

description	pid	Process	procid_target
PID 2280 set thread context of 2824	2280	20241125_BAON_19xxxxxx24.exe	31

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

Processes:

20241125_BAON_19xxxxxx24.exe20241125_BAON_19xxxxxx24.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20241125_BAON_19xxxxxx24.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20241125_BAON_19xxxxxx24.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

20241125_BAON_19xxxxxx24.exe

pid	Process
2824	20241125_BAON_19xxxxxx24.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

20241125_BAON_19xxxxxx24.exe

description	pid	Process	procid_target
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31
PID 2280 wrote to memory of 2824	2280	20241125_BAON_19xxxxxx24.exe	31

C:\Users\Admin\AppData\Local\Temp\20241125_BAON_19xxxxxx24.exe
"C:\Users\Admin\AppData\Local\Temp\20241125_BAON_19xxxxxx24.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\20241125_BAON_19xxxxxx24.exe
  "C:\Users\Admin\AppData\Local\Temp\20241125_BAON_19xxxxxx24.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
5a2647843fe2380b963d7c4965d3e14b

SHA1
11c0085681ccba2457ee45dbcfdce04301dd1dff

SHA256
f713c357ff61e90eb014972a717941891ff7abb189b9a59fea3c2649ed181813

SHA512
8b3f917aa63278782e043593afb591316ac8045af208d9d57f5923519c8bda33a8d555d7e47b98c7965ea02975284fcda6c169dc5388f75a8110f2d381b40d27

Download Submit
memory/2280-0-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/2280-1-0x0000000000290000-0x000000000038A000-memory.dmp

Filesize
1000KB

Download
memory/2280-2-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-3-0x0000000000430000-0x000000000044C000-memory.dmp

Filesize
112KB

Download
memory/2280-4-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/2280-5-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-6-0x0000000005D70000-0x0000000005E34000-memory.dmp

Filesize
784KB

Download
memory/2280-29-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-85-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download