remcos | d4bd7d642e2ddcab2e7e6990d7e41b50826bb0354531b42926ba989cb3109880

Analysis

max time kernel
150s
max time network
152s
platform
windows10_x64
resource
win10v20210408
submitted
24/09/2021, 18:31

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General

Target
Re Confirmação do pedido ,pdf.exe
Size 668KB
Sample210924-w52hxahefl
SHA256 d4bd7d642e2ddcab2e7e6990d7e41b50826bb0354531b42926ba989cb3109880
MD5 73ef4bd6cb184991af8e52c261567c32
SHA1 d2da15f49cd98623f8a7c0319395abd41e92e58f
SHA512 ee441ee72fc53cba9fdb6a11e16cd320e3a01f688396809e0feb7cf4b55a3baffb8442903aecde8dd9b2465fc8b696575883a83072d0e20036d8a61a172b7f83
MD5 SHA1 SHA512

Score

10^/10

remcos gr8est persistence rat

Malware Config

Extracted

Family

remcos

Version

3.1.5 Pro

Botnet

GR8EST

manneedmoney.ddns.net:6642

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-UEWQ2P
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
notepad;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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Zguxmhx = "C:\\Users\\Public\\Libraries\\xhmxugZ.url"	Re Confirmação do pedido ,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
3784	reg.exe
748	reg.exe
1076	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3548	4060	Re Confirmação do pedido ,pdf.exe	68
PID 4060 wrote to memory of 3996	4060	Re Confirmação do pedido ,pdf.exe	69
PID 4060 wrote to memory of 3996	4060	Re Confirmação do pedido ,pdf.exe	69
PID 4060 wrote to memory of 3996	4060	Re Confirmação do pedido ,pdf.exe	69
PID 3996 wrote to memory of 3480	3996	cmd.exe	71
PID 3996 wrote to memory of 3480	3996	cmd.exe	71
PID 3996 wrote to memory of 3480	3996	cmd.exe	71
PID 3480 wrote to memory of 3784	3480	cmd.exe	73
PID 3480 wrote to memory of 3784	3480	cmd.exe	73
PID 3480 wrote to memory of 3784	3480	cmd.exe	73
PID 3480 wrote to memory of 748	3480	cmd.exe	74
PID 3480 wrote to memory of 748	3480	cmd.exe	74
PID 3480 wrote to memory of 748	3480	cmd.exe	74
PID 3480 wrote to memory of 736	3480	cmd.exe	75
PID 3480 wrote to memory of 736	3480	cmd.exe	75
PID 3480 wrote to memory of 736	3480	cmd.exe	75
PID 4060 wrote to memory of 992	4060	Re Confirmação do pedido ,pdf.exe	76
PID 4060 wrote to memory of 992	4060	Re Confirmação do pedido ,pdf.exe	76
PID 4060 wrote to memory of 992	4060	Re Confirmação do pedido ,pdf.exe	76
PID 992 wrote to memory of 1076	992	cmd.exe	78
PID 992 wrote to memory of 1076	992	cmd.exe	78
PID 992 wrote to memory of 1076	992	cmd.exe	78

C:\Users\Admin\AppData\Local\Temp\Re Confirmação do pedido ,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Re Confirmação do pedido ,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Windows\SysWOW64\logagent.exe
  logagent.exe
  2⤵
  PID:3548
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3996
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3480
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:3784
  - - 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:748
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:736
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:992
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1076

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

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Downloads

memory/3548-125-0x0000000002E70000-0x0000000002E71000-memory.dmp

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memory/3548-124-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

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memory/3548-127-0x0000000010590000-0x000000001060C000-memory.dmp

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memory/3548-126-0x0000000002E10000-0x0000000002E11000-memory.dmp

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memory/3548-128-0x0000000000400000-0x0000000000479000-memory.dmp

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memory/4060-114-0x0000000000500000-0x0000000000501000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads