Analysis

  • max time kernel
    900s
  • max time network
    900s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08-01-2025 08:32

General

  • Target

    RFQ-20241230.exe

  • Size

    964KB

  • MD5

    e420f31140cb8a6e79c3729bb60b69d2

  • SHA1

    0024d24f5941374aa1a45d71faef8ff2b5a6a6f0

  • SHA256

    0a8d24447650e7f6b92454a47a880cd2ce12681d047c3a1c3b44e69cb7fff59d

  • SHA512

    4c42727ca126a44e3f92471fc2df9146dbf917c3031abf54602088f8594b1956208d0bd126eb5c70ecba9e0812c06f80ba383eb2f3fa6cb07bd24847078e9a69

  • SSDEEP

    24576:FzrqD+VnGOgUL+oMIk2W/PpOlL46TFJt:BqyVnCUaLnZONbTFJ

Malware Config

Extracted

Family

remcos

Botnet

RemcoHost

C2

173.211.106.233:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-4WOIVV

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ-20241230.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ-20241230.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ-20241230.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4424
    • C:\Users\Admin\AppData\Local\Temp\RFQ-20241230.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ-20241230.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_usz53lp3.rfp.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1496-6-0x0000000005850000-0x00000000058EC000-memory.dmp

    Filesize

    624KB

  • memory/1496-2-0x0000000005AB0000-0x0000000006056000-memory.dmp

    Filesize

    5.6MB

  • memory/1496-3-0x00000000055E0000-0x0000000005672000-memory.dmp

    Filesize

    584KB

  • memory/1496-4-0x0000000005790000-0x000000000579A000-memory.dmp

    Filesize

    40KB

  • memory/1496-5-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/1496-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

    Filesize

    4KB

  • memory/1496-7-0x0000000006190000-0x00000000061A8000-memory.dmp

    Filesize

    96KB

  • memory/1496-8-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

    Filesize

    4KB

  • memory/1496-9-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/1496-10-0x00000000080F0000-0x00000000081B4000-memory.dmp

    Filesize

    784KB

  • memory/1496-19-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/1496-1-0x0000000000A40000-0x0000000000B36000-memory.dmp

    Filesize

    984KB

  • memory/4424-31-0x00000000058F0000-0x0000000005956000-memory.dmp

    Filesize

    408KB

  • memory/4424-38-0x00000000063B0000-0x00000000063E4000-memory.dmp

    Filesize

    208KB

  • memory/4424-22-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-18-0x00000000025E0000-0x0000000002616000-memory.dmp

    Filesize

    216KB

  • memory/4424-23-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-30-0x0000000005880000-0x00000000058E6000-memory.dmp

    Filesize

    408KB

  • memory/4424-20-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

    Filesize

    4KB

  • memory/4424-63-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-24-0x00000000057E0000-0x0000000005802000-memory.dmp

    Filesize

    136KB

  • memory/4424-32-0x0000000005960000-0x0000000005CB7000-memory.dmp

    Filesize

    3.3MB

  • memory/4424-36-0x0000000005DF0000-0x0000000005E0E000-memory.dmp

    Filesize

    120KB

  • memory/4424-37-0x0000000006120000-0x000000000616C000-memory.dmp

    Filesize

    304KB

  • memory/4424-39-0x0000000071620000-0x000000007166C000-memory.dmp

    Filesize

    304KB

  • memory/4424-21-0x00000000051B0000-0x00000000057DA000-memory.dmp

    Filesize

    6.2MB

  • memory/4424-48-0x0000000006DA0000-0x0000000006DBE000-memory.dmp

    Filesize

    120KB

  • memory/4424-49-0x0000000006DD0000-0x0000000006E74000-memory.dmp

    Filesize

    656KB

  • memory/4424-50-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-51-0x0000000074EB0000-0x0000000075661000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-52-0x0000000007780000-0x0000000007DFA000-memory.dmp

    Filesize

    6.5MB

  • memory/4424-53-0x0000000007140000-0x000000000715A000-memory.dmp

    Filesize

    104KB

  • memory/4424-54-0x00000000071B0000-0x00000000071BA000-memory.dmp

    Filesize

    40KB

  • memory/4424-55-0x00000000073E0000-0x0000000007476000-memory.dmp

    Filesize

    600KB

  • memory/4424-56-0x0000000007350000-0x0000000007361000-memory.dmp

    Filesize

    68KB

  • memory/4424-57-0x0000000007380000-0x000000000738E000-memory.dmp

    Filesize

    56KB

  • memory/4424-58-0x0000000007390000-0x00000000073A5000-memory.dmp

    Filesize

    84KB

  • memory/4424-59-0x00000000074A0000-0x00000000074BA000-memory.dmp

    Filesize

    104KB

  • memory/4424-60-0x00000000074C0000-0x00000000074C8000-memory.dmp

    Filesize

    32KB

  • memory/4484-70-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-91-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-14-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-16-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-17-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-15-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-64-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-65-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-66-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-67-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-68-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-69-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-11-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-71-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-72-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-73-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-74-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-75-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-76-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-77-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-78-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-79-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-80-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-81-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-82-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-83-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-84-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-85-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-86-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-87-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-88-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-89-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-90-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-12-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-92-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-93-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-94-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-95-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-96-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-97-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-98-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-99-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-100-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-101-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-102-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-103-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-104-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-105-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-106-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-107-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-108-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-109-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-110-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-111-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-112-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-113-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-114-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-115-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-116-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-117-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-118-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-119-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-120-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-121-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-122-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4484-123-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB