remcos | 31ccfd52379f73629cf34d1e2864648befed8f571785811c1936919f36b807c0

Analysis

max time kernel
150s
max time network
151s
platform
windows10_x64
resource
win10-en-20211014
submitted
29/10/2021, 05:06

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General

Target
AWB # 2617429350,pdf.exe
Size 1005KB
Sample211029-fre5rahcfr
SHA256 31ccfd52379f73629cf34d1e2864648befed8f571785811c1936919f36b807c0
MD5 733471b2013ebbf7699a4580eefbc40f
SHA1 5a8c99eed0183b106abb96a7229eb6cec7a0ca65
SHA512 e94a9807fdd9d9a0e9ad4912f49f55ceb556fa59946cfbb9e5ecc02715583e953b3c3052378bfee9da89c3b0457d9621b45c5cbe0c9a427170844b79b377976b
MD5 SHA1 SHA512

Score

10^/10

remcos zion persistence rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

ZION

tattonmurpy6.ddns.net:1720

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-EREPJP
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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Jradgv = "C:\\Users\\Public\\Libraries\\\\vgdarJ.url"	AWB # 2617429350,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
1424	reg.exe
716	reg.exe
3588	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3840	2700	AWB # 2617429350,pdf.exe	69
PID 2700 wrote to memory of 3744	2700	AWB # 2617429350,pdf.exe	70
PID 2700 wrote to memory of 3744	2700	AWB # 2617429350,pdf.exe	70
PID 2700 wrote to memory of 3744	2700	AWB # 2617429350,pdf.exe	70
PID 3744 wrote to memory of 1404	3744	cmd.exe	72
PID 3744 wrote to memory of 1404	3744	cmd.exe	72
PID 3744 wrote to memory of 1404	3744	cmd.exe	72
PID 1404 wrote to memory of 1424	1404	cmd.exe	74
PID 1404 wrote to memory of 1424	1404	cmd.exe	74
PID 1404 wrote to memory of 1424	1404	cmd.exe	74
PID 1404 wrote to memory of 716	1404	cmd.exe	75
PID 1404 wrote to memory of 716	1404	cmd.exe	75
PID 1404 wrote to memory of 716	1404	cmd.exe	75
PID 1404 wrote to memory of 1184	1404	cmd.exe	76
PID 1404 wrote to memory of 1184	1404	cmd.exe	76
PID 1404 wrote to memory of 1184	1404	cmd.exe	76
PID 2700 wrote to memory of 3752	2700	AWB # 2617429350,pdf.exe	77
PID 2700 wrote to memory of 3752	2700	AWB # 2617429350,pdf.exe	77
PID 2700 wrote to memory of 3752	2700	AWB # 2617429350,pdf.exe	77
PID 3752 wrote to memory of 3588	3752	cmd.exe	79
PID 3752 wrote to memory of 3588	3752	cmd.exe	79
PID 3752 wrote to memory of 3588	3752	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\AWB # 2617429350,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\AWB # 2617429350,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\SysWOW64\DpiScaling.exe
  C:\Windows\System32\DpiScaling.exe
  2⤵
  PID:3840
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3744
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1404
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:1424
  - - 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:716
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:1184
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3752
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:3588

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/2700-116-0x0000000002A01000-0x0000000002A15000-memory.dmp

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memory/2700-115-0x0000000002260000-0x0000000002261000-memory.dmp

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memory/3840-120-0x0000000002D30000-0x0000000002DDE000-memory.dmp

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memory/3840-124-0x0000000000400000-0x0000000000479000-memory.dmp

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memory/3840-123-0x0000000074100000-0x000000007417C000-memory.dmp

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memory/3840-122-0x0000000002CF0000-0x0000000002CF1000-memory.dmp

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memory/3840-121-0x0000000002CD0000-0x0000000002CD1000-memory.dmp

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memory/3840-119-0x0000000002C90000-0x0000000002C91000-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