remcos | b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f

General

Target

b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe
Size

964KB
MD5

6138a05e066e20c8e39c760bec68e113
SHA1

04644b6a5ea07a58824ff156b240ca9481806469
SHA256

b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f
SHA512

811381b33c3be3ee817a127c42e3c886802331d7453230658244872c97cddc36aa4c0b7d05e30c9280bfe1f800fedb481575cd0ab502386953af4505a5dd7aaf
SSDEEP

24576:LI++Z/jfG+Nv4GhFASI4tKX2Fjpm87bb:LI++ZLfG+SGhF/tImT

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.186.116.220:6565

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-9XV80Z
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31
PID 2536 wrote to memory of 2424	2536	b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe	31

C:\Users\Admin\AppData\Local\Temp\b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe
"C:\Users\Admin\AppData\Local\Temp\b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2424

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

memory/2424-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-22-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2424-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2424-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2536-29-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2536-1-0x0000000000870000-0x0000000000966000-memory.dmp

Filesize
984KB

Download
memory/2536-3-0x00000000006A0000-0x00000000006B0000-memory.dmp

Filesize
64KB

Download
memory/2536-6-0x0000000005880000-0x0000000005940000-memory.dmp

Filesize
768KB

Download
memory/2536-5-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2536-4-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2536-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2536-2-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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