remcos | a1adbdad4e1d0b04ddbac043a174b0b9e2731402fd9422085243c32c8e575fdf

Analysis

max time kernel
151s
max time network
153s
platform
windows10_x64
resource
win10v20210408
submitted
23/09/2021, 20:50

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General

Target
lista1678,PDF.exe
Size 702KB
Sample210923-zmllhsfcd6
SHA256 a1adbdad4e1d0b04ddbac043a174b0b9e2731402fd9422085243c32c8e575fdf
MD5 674739cd5807794ca477f7f9f43156ec
SHA1 0caf24293195aa1f6e90f27be51fb23326a53acc
SHA512 ec71f783cbdf8b5390faec26f1886a49b1808cb9648b5a956988aa6b76cac84b64e2566ef5f395b07cad87b2829634c70089c4e7c1a6810552e2dc77a61172f1
MD5 SHA1 SHA512

Score

10^/10

remcos blessings persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Blessings

vegospupm.ddns.net:5632

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-AF5FCY
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\Dlwkldh = "C:\\Users\\Public\\Libraries\\hdlkwlD.url"	lista1678,PDF.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
1144	reg.exe
1288	reg.exe
1768	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3188	1832	lista1678,PDF.exe	68
PID 1832 wrote to memory of 3576	1832	lista1678,PDF.exe	69
PID 1832 wrote to memory of 3576	1832	lista1678,PDF.exe	69
PID 1832 wrote to memory of 3576	1832	lista1678,PDF.exe	69
PID 3576 wrote to memory of 920	3576	cmd.exe	71
PID 3576 wrote to memory of 920	3576	cmd.exe	71
PID 3576 wrote to memory of 920	3576	cmd.exe	71
PID 920 wrote to memory of 1144	920	cmd.exe	73
PID 920 wrote to memory of 1144	920	cmd.exe	73
PID 920 wrote to memory of 1144	920	cmd.exe	73
PID 920 wrote to memory of 1288	920	cmd.exe	74
PID 920 wrote to memory of 1288	920	cmd.exe	74
PID 920 wrote to memory of 1288	920	cmd.exe	74
PID 920 wrote to memory of 1372	920	cmd.exe	75
PID 920 wrote to memory of 1372	920	cmd.exe	75
PID 920 wrote to memory of 1372	920	cmd.exe	75
PID 1832 wrote to memory of 1488	1832	lista1678,PDF.exe	76
PID 1832 wrote to memory of 1488	1832	lista1678,PDF.exe	76
PID 1832 wrote to memory of 1488	1832	lista1678,PDF.exe	76
PID 1488 wrote to memory of 1768	1488	cmd.exe	78
PID 1488 wrote to memory of 1768	1488	cmd.exe	78
PID 1488 wrote to memory of 1768	1488	cmd.exe	78

C:\Users\Admin\AppData\Local\Temp\lista1678,PDF.exe
"C:\Users\Admin\AppData\Local\Temp\lista1678,PDF.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Windows\SysWOW64\DpiScaling.exe
  DpiScaling.exe
  2⤵
  PID:3188
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3576
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:920
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:1144
  - - 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:1288
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:1372
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1488
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1768

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/1832-114-0x00000000004C0000-0x000000000060A000-memory.dmp

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memory/3188-121-0x0000000002640000-0x0000000002641000-memory.dmp

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memory/3188-120-0x0000000002380000-0x0000000002381000-memory.dmp

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memory/3188-122-0x0000000002610000-0x0000000002611000-memory.dmp

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memory/3188-124-0x0000000010590000-0x000000001060C000-memory.dmp

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memory/3188-125-0x0000000002660000-0x00000000026D9000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads