remcos | 1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58

Analysis

max time kernel
147s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-09-2024 01:05

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General

Target

1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe
Size

1.7MB
MD5

2ba2caed8e7776c9895db0a3e5e0714c
SHA1

a3db8f2e22f6674ec60f6fbb11adf1bf65986827
SHA256

1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58
SHA512

5ca99a0247c154b78a48f0e1b9e663f4ed6f4f1a78f0ff0d93e8d8579d419051ace94d8b91d3889b83f4c227ed387641614365e0ee5e81f23f409654b86677ee
SSDEEP

24576:nIx+lXcmg/23DrVykOe1L2gj/EjuJajIA:nrlXc3kVJzBjIuo

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:52121

officerem.duckdns.org:52121

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-6GPUH1
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31

System Location Discovery: System Language Discovery 1 TTPs 1 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	wmplayer.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1384	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	30
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 1864	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	31
PID 2516 wrote to memory of 2820	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	32
PID 2516 wrote to memory of 2820	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	32
PID 2516 wrote to memory of 2820	2516	1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe	32

C:\Users\Admin\AppData\Local\Temp\1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe
"C:\Users\Admin\AppData\Local\Temp\1df5b2a41831081a752bfd626acb7e216d0c03b0e1b1a7c829a7348a54833c58.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:1384
- C:\Program Files (x86)\Windows Media Player\wmplayer.exe
  "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1864
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2516 -s 644
  2⤵
  PID:2820

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

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Downloads

memory/1384-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1384-4-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1384-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1384-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1384-5-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1384-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1384-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1384-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1864-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1864-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-3-0x0000000000510000-0x00000000005DE000-memory.dmp

Filesize
824KB

Download
memory/2516-42-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/2516-40-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/2516-0-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/2516-1-0x0000000001170000-0x0000000001178000-memory.dmp

Filesize
32KB

Download
memory/2516-2-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download