remcos | 9f87aa938179953b88e6d47d4f2d07f82ec683a90ff0d77d8f50ad67ab55ad89

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-en-20211014
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

Version

3.3.0 Pro

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-1-5-21-2955169046-2371869340-1800780948-1000\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
1928	reg.exe
928	reg.exe
1192	reg.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 1528	1236	Dringende RFQ_AP65425652_032421,pdf.exe	30
PID 1236 wrote to memory of 996	1236	Dringende RFQ_AP65425652_032421,pdf.exe	31
PID 1236 wrote to memory of 996	1236	Dringende RFQ_AP65425652_032421,pdf.exe	31
PID 1236 wrote to memory of 996	1236	Dringende RFQ_AP65425652_032421,pdf.exe	31
PID 1236 wrote to memory of 996	1236	Dringende RFQ_AP65425652_032421,pdf.exe	31
PID 996 wrote to memory of 1260	996	cmd.exe	33
PID 996 wrote to memory of 1260	996	cmd.exe	33
PID 996 wrote to memory of 1260	996	cmd.exe	33
PID 996 wrote to memory of 1260	996	cmd.exe	33
PID 1260 wrote to memory of 1928	1260	cmd.exe	35
PID 1260 wrote to memory of 1928	1260	cmd.exe	35
PID 1260 wrote to memory of 1928	1260	cmd.exe	35
PID 1260 wrote to memory of 1928	1260	cmd.exe	35
PID 1260 wrote to memory of 928	1260	cmd.exe	36
PID 1260 wrote to memory of 928	1260	cmd.exe	36
PID 1260 wrote to memory of 928	1260	cmd.exe	36
PID 1260 wrote to memory of 928	1260	cmd.exe	36
PID 1260 wrote to memory of 1484	1260	cmd.exe	37
PID 1260 wrote to memory of 1484	1260	cmd.exe	37
PID 1260 wrote to memory of 1484	1260	cmd.exe	37
PID 1260 wrote to memory of 1484	1260	cmd.exe	37
PID 1236 wrote to memory of 1620	1236	Dringende RFQ_AP65425652_032421,pdf.exe	38
PID 1236 wrote to memory of 1620	1236	Dringende RFQ_AP65425652_032421,pdf.exe	38
PID 1236 wrote to memory of 1620	1236	Dringende RFQ_AP65425652_032421,pdf.exe	38
PID 1236 wrote to memory of 1620	1236	Dringende RFQ_AP65425652_032421,pdf.exe	38
PID 1620 wrote to memory of 1192	1620	cmd.exe	40
PID 1620 wrote to memory of 1192	1620	cmd.exe	40
PID 1620 wrote to memory of 1192	1620	cmd.exe	40
PID 1620 wrote to memory of 1192	1620	cmd.exe	40

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:1236
- C:\Windows\SysWOW64\mobsync.exe
  C:\Windows\System32\mobsync.exe
  2⤵
  PID:1528
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1260
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:1928
  - - 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:928
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:1484
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1192

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/1236-56-0x0000000000281000-0x0000000000295000-memory.dmp

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memory/1236-57-0x0000000075191000-0x0000000075193000-memory.dmp

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memory/1236-55-0x0000000000220000-0x0000000000221000-memory.dmp

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memory/1528-81-0x0000000000290000-0x0000000000291000-memory.dmp

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memory/1528-80-0x00000000001B0000-0x00000000001B1000-memory.dmp

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memory/1528-79-0x0000000000080000-0x0000000000081000-memory.dmp

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memory/1528-69-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/1528-82-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/1528-83-0x00000000002A0000-0x0000000000319000-memory.dmp

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memory/1528-58-0x0000000000080000-0x0000000000081000-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