remcos | 3ccb4131b2f8cf9a54cf003e6d29e841d83425aaa3b1c2fcc1bd253e855ff106

Analysis

max time kernel
151s
max time network
151s
platform
windows10_x64
resource
win10-en-20211014
submitted
09/11/2021, 13:28

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe
Size 832KB
Sample211109-qqnqlsfcg8
SHA256 3ccb4131b2f8cf9a54cf003e6d29e841d83425aaa3b1c2fcc1bd253e855ff106
MD5 ef669921322ed97d267380bb0ab20291
SHA1 a5a5f52606d5e278ea8410545edc71a399506e63
SHA512 22c828681669792610d681de518f882b35d3e8da11cee28879dcb48ae7f3c0bd7add5a5de78aae23070605b78b85aa7684867eb571e7eb2938a11a77d5a37a02
MD5 SHA1 SHA512

Score

10^/10

remcos kingmaca persistence rat

Malware Config

Extracted

Family

remcos

Version

3.1.0 Pro

Botnet

KINGMACA

blessedmacatty.ddns.net:2091

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-2C5HHK
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
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fkdeqmex = "C:\\Users\\Public\\xemqedkF.url"	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
4060	reg.exe
600	reg.exe
2436	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3960	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	69
PID 2816 wrote to memory of 3532	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	70
PID 2816 wrote to memory of 3532	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	70
PID 2816 wrote to memory of 3532	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	70
PID 3532 wrote to memory of 1788	3532	cmd.exe	72
PID 3532 wrote to memory of 1788	3532	cmd.exe	72
PID 3532 wrote to memory of 1788	3532	cmd.exe	72
PID 1788 wrote to memory of 4060	1788	cmd.exe	74
PID 1788 wrote to memory of 4060	1788	cmd.exe	74
PID 1788 wrote to memory of 4060	1788	cmd.exe	74
PID 1788 wrote to memory of 600	1788	cmd.exe	75
PID 1788 wrote to memory of 600	1788	cmd.exe	75
PID 1788 wrote to memory of 600	1788	cmd.exe	75
PID 1788 wrote to memory of 3624	1788	cmd.exe	76
PID 1788 wrote to memory of 3624	1788	cmd.exe	76
PID 1788 wrote to memory of 3624	1788	cmd.exe	76
PID 2816 wrote to memory of 3636	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	77
PID 2816 wrote to memory of 3636	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	77
PID 2816 wrote to memory of 3636	2816	BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe	77
PID 3636 wrote to memory of 2436	3636	cmd.exe	79
PID 3636 wrote to memory of 2436	3636	cmd.exe	79
PID 3636 wrote to memory of 2436	3636	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\BIOBARICA OC CVE6535 _TVOP-MIO 10(C) 2021,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\logagent.exe
  C:\Windows\System32\logagent.exe
  2⤵
  PID:3960
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:4060
  - - C:\Windows\SysWOW64\reg.exe
      reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
      4⤵
      Modifies registry key
      PID:600
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:3624
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3636
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:2436

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2816-116-0x0000000002301000-0x0000000002315000-memory.dmp

Download

memory/2816-115-0x0000000000590000-0x000000000063E000-memory.dmp

Download

memory/3960-124-0x0000000002D50000-0x0000000002D51000-memory.dmp

Download

memory/3960-127-0x0000000000400000-0x0000000000478000-memory.dmp

Download

memory/3960-125-0x0000000002CF0000-0x0000000002CF1000-memory.dmp

Download

memory/3960-126-0x0000000072600000-0x000000007267B000-memory.dmp

Download

memory/3960-123-0x0000000002C90000-0x0000000002C91000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads