Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2022 11:12

General

  • Target

    ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe

  • Size

    1.4MB

  • MD5

    c19d596b1798a378a6b446b09490bac6

  • SHA1

    6cc157be6a544aa581c876b0ae3da67007583272

  • SHA256

    3309420da4cc8e91be71bd96a482fd2b544e2b1dd0d5a8e075b3cfe9bac1957f

  • SHA512

    26955839b01e887b2c0ed9547f04767a27d322394d02c2e52ab71ed198124863acd6b4e0bb7e8aa541567cc174c164b2162c5afaf9e9efe76db643f3becd279e

  • SSDEEP

    24576:wDVSydp4++i6NPXu+9Nj1WVSPKwf6CMMSA:wBZU++iFurniwfe4

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost Reff

C2

45.66.151.212:1960

Attributes
  • audio_folder

    MicRecords

  • 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-62UVZC

  • 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

Signatures

  • Remcos

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

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe
    "C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1012
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TXLBIQL.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2044
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TXLBIQL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7678.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:956
    • C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe
      "C:\Users\Admin\AppData\Local\Temp\ATTACHEMENT___ PART SHIPMENT-FEDEX- cargo Arrival Notification Import Track No 283738293737 MR V FKUMAR.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7678.tmp

    Filesize

    1KB

    MD5

    0bba8737038f138850f21d250f9e7bc1

    SHA1

    1edb729302c85e826de1d020e5602713d8172564

    SHA256

    aab989e5c5b3c88ac6925fc6c3812cc8f2ec5ca0171dfd8bdda3194ad7a154df

    SHA512

    00979b724a49b1fc9e8fa2c2b086b7c39a8769538b5968ee045ddf7ee71e17d462ccdbb045984eb34d2471e92af2108f3e131ffa0c0cdf2e239c8d962c01e8ef

  • memory/1012-54-0x0000000000A90000-0x0000000000BF4000-memory.dmp

    Filesize

    1.4MB

  • memory/1012-55-0x00000000763F1000-0x00000000763F3000-memory.dmp

    Filesize

    8KB

  • memory/1012-56-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/1012-57-0x0000000004445000-0x0000000004456000-memory.dmp

    Filesize

    68KB

  • memory/1012-58-0x0000000000730000-0x000000000073C000-memory.dmp

    Filesize

    48KB

  • memory/1012-59-0x00000000059E0000-0x0000000005AEC000-memory.dmp

    Filesize

    1.0MB

  • memory/1012-82-0x0000000004445000-0x0000000004456000-memory.dmp

    Filesize

    68KB

  • memory/1012-64-0x0000000005E90000-0x0000000005F46000-memory.dmp

    Filesize

    728KB

  • memory/1436-77-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-75-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-68-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-70-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-71-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-73-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-72-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-66-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-65-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-81-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-86-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1436-84-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2044-83-0x000000006EB90000-0x000000006F13B000-memory.dmp

    Filesize

    5.7MB

  • memory/2044-85-0x000000006EB90000-0x000000006F13B000-memory.dmp

    Filesize

    5.7MB