remcos | 9f87aa938179953b88e6d47d4f2d07f82ec683a90ff0d77d8f50ad67ab55ad89

Analysis

max time kernel
152s
max time network
151s
platform
windows10_x64
resource
win10-en-20211104
submitted
11/11/2021, 14:36

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General

Target
Dringende RFQ_AP65425652_032421,pdf.exe
Size 776KB
Sample211111-rylfwsbdg9
SHA256 9f87aa938179953b88e6d47d4f2d07f82ec683a90ff0d77d8f50ad67ab55ad89
MD5 e48ef0263a0521485c2913355757f7ad
SHA1 c7f261fcbc4444a3676f033efde576f44c741ac6
SHA512 8f29faaea62def2c4299e340580326077cda2e642bcbf074360052c160799381819ba2a7d97a4007e572b068fbdb80ae711ad14974852620e54b907bcdc9cfcc
MD5 SHA1 SHA512

Score

10^/10

remcos dimension persistence rat

Malware Config

Extracted

Family

remcos

Botnet

DIMENSION

mirroronthewall.hopto.org:6041

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-LHHZG6
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-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kplupocg = "C:\\Users\\Public\\gcopulpK.url"	Dringende RFQ_AP65425652_032421,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
3808	reg.exe
3872	reg.exe
720	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 408	1008	Dringende RFQ_AP65425652_032421,pdf.exe	69
PID 1008 wrote to memory of 2316	1008	Dringende RFQ_AP65425652_032421,pdf.exe	70
PID 1008 wrote to memory of 2316	1008	Dringende RFQ_AP65425652_032421,pdf.exe	70
PID 1008 wrote to memory of 2316	1008	Dringende RFQ_AP65425652_032421,pdf.exe	70
PID 2316 wrote to memory of 1016	2316	cmd.exe	72
PID 2316 wrote to memory of 1016	2316	cmd.exe	72
PID 2316 wrote to memory of 1016	2316	cmd.exe	72
PID 1016 wrote to memory of 3808	1016	cmd.exe	74
PID 1016 wrote to memory of 3808	1016	cmd.exe	74
PID 1016 wrote to memory of 3808	1016	cmd.exe	74
PID 1016 wrote to memory of 3872	1016	cmd.exe	75
PID 1016 wrote to memory of 3872	1016	cmd.exe	75
PID 1016 wrote to memory of 3872	1016	cmd.exe	75
PID 1016 wrote to memory of 2872	1016	cmd.exe	76
PID 1016 wrote to memory of 2872	1016	cmd.exe	76
PID 1016 wrote to memory of 2872	1016	cmd.exe	76
PID 1008 wrote to memory of 1132	1008	Dringende RFQ_AP65425652_032421,pdf.exe	77
PID 1008 wrote to memory of 1132	1008	Dringende RFQ_AP65425652_032421,pdf.exe	77
PID 1008 wrote to memory of 1132	1008	Dringende RFQ_AP65425652_032421,pdf.exe	77
PID 1132 wrote to memory of 720	1132	cmd.exe	79
PID 1132 wrote to memory of 720	1132	cmd.exe	79
PID 1132 wrote to memory of 720	1132	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\Dringende RFQ_AP65425652_032421,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Dringende RFQ_AP65425652_032421,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Windows\SysWOW64\mobsync.exe
  C:\Windows\System32\mobsync.exe
  2⤵
  PID:408
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1016
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:3808
  - - 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:3872
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:2872
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1132
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:720

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/408-131-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/408-130-0x00000000026F0000-0x00000000026F1000-memory.dmp

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memory/408-132-0x0000000002760000-0x00000000027D9000-memory.dmp

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memory/408-129-0x0000000002690000-0x0000000002691000-memory.dmp

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memory/408-128-0x0000000002750000-0x0000000002751000-memory.dmp

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memory/1008-118-0x0000000000760000-0x0000000000761000-memory.dmp

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memory/1008-119-0x0000000002411000-0x0000000002425000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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