remcos | fc5a104616191074e73ca74e64056c26e129b75395e57257eebf629772200d21

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 08:48

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General

Target

1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe
Size

469KB
MD5

c42b1e2c4f831723e13fa9fcfe26be96
SHA1

0cdce2551a12c15df38d10c532f3af640f5f7fd8
SHA256

fc5a104616191074e73ca74e64056c26e129b75395e57257eebf629772200d21
SHA512

78a7f391392a51722af4ee0569fe90cb7acb4b528ee72900c449f022262c3f70dfe38783397e8854f553e9365cac8672654b9ebe327103ea7ef1e48e337c9dde
SSDEEP

12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQS0n9:uiLJbpI7I2WhQqZ709

Score

10^/10

remcos octobers discovery rat

Malware Config

Extracted

Family

remcos

Botnet

OCTOBERS

ab9001.ddns.net:23782

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
VLC.exe
copy_folder
VLC
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
Chrorne-28R56P
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Rmc
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 2140 set thread context of 2804	2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	30

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	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2140 wrote to memory of 2804	2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	30
PID 2140 wrote to memory of 2804	2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	30
PID 2140 wrote to memory of 2804	2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	30
PID 2140 wrote to memory of 2804	2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	30
PID 2140 wrote to memory of 2804	2140	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	30

C:\Users\Admin\AppData\Local\Temp\1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe
"C:\Users\Admin\AppData\Local\Temp\1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:2804

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

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
49bc43d30c832bf295e208a4894ef7cd

SHA1
e7af23f469ca2455287d34a84d876004a6569cf9

SHA256
2413b9801b7525aa3e9b62a46e498a20ef1e842b9bcaa7845d632fe8a11f133b

SHA512
44c405b21e2a3ee2a9258d6a633057aa857e5d7fdec36474a4b01ea9cf918962c69daa2055d035e3870662bbd0d4d5f4b4a05fe0b6dfe8ff9d66a6959c0950fd

Download Submit
memory/2804-2-0x00000000000F0000-0x000000000016F000-memory.dmp

Filesize
508KB

Download
memory/2804-4-0x00000000000F0000-0x000000000016F000-memory.dmp

Filesize
508KB

Download
memory/2804-5-0x00000000000F0000-0x000000000016F000-memory.dmp

Filesize
508KB

Download
memory/2804-0-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download