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Overview

overview

10

Static

static

ATTACHEMEN...AR.exe

windows7-x64

10

ATTACHEMEN...AR.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    154s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2022, 11:12

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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

Score
10/10
remcosremotehost reffrat

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.

    ratremcos
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 7 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 18 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⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3604
    • 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:1412
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TXLBIQL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A9C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:884
    • 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:4228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8A9C.tmp
    Filesize

    1KB

    MD5

    17237214f4cfe9f24d0483a2703d3c57

    SHA1

    b9a5f2e35d87713dc31b328632131c707312be28

    SHA256

    760314b2bb0322a08658cfd7bbb1ea0adee457c17012fa4315c84894cb9b0711

    SHA512

    f6b45468a7330b3cf74392afe4168d3967e67245c17d4d1a32f7c102e0829bb0345e50314954e454fcace1764d07ab6fb2afaf81381d6679aa46443c3349f3bc

    Download Submit

  • memory/1412-150-0x0000000004B40000-0x0000000004B5E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1412-143-0x0000000005030000-0x0000000005658000-memory.dmp

    Filesize

    6.2MB

    Download

  • memory/1412-156-0x0000000006030000-0x000000000604A000-memory.dmp

    Filesize

    104KB

    Download

  • memory/1412-155-0x0000000007E60000-0x00000000084DA000-memory.dmp

    Filesize

    6.5MB

    Download

  • memory/1412-154-0x0000000005E10000-0x0000000005E2E000-memory.dmp

    Filesize

    120KB

    Download

  • memory/1412-140-0x0000000002410000-0x0000000002446000-memory.dmp

    Filesize

    216KB

    Download

  • memory/1412-146-0x0000000004E60000-0x0000000004E82000-memory.dmp

    Filesize

    136KB

    Download

  • memory/1412-153-0x0000000071EF0000-0x0000000071F3C000-memory.dmp

    Filesize

    304KB

    Download

  • memory/1412-152-0x0000000005E30000-0x0000000005E62000-memory.dmp

    Filesize

    200KB

    Download

  • memory/1412-147-0x0000000004F00000-0x0000000004F66000-memory.dmp

    Filesize

    408KB

    Download

  • memory/3604-133-0x0000000005F40000-0x00000000064E4000-memory.dmp

    Filesize

    5.6MB

    Download

  • memory/3604-135-0x0000000005910000-0x000000000591A000-memory.dmp

    Filesize

    40KB

    Download

  • memory/3604-132-0x0000000000E10000-0x0000000000F74000-memory.dmp

    Filesize

    1.4MB

    Download

  • memory/3604-134-0x0000000005990000-0x0000000005A22000-memory.dmp

    Filesize

    584KB

    Download

  • memory/3604-137-0x0000000009990000-0x00000000099F6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/3604-136-0x00000000096F0000-0x000000000978C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/4228-148-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download

  • memory/4228-149-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download

  • memory/4228-151-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download

  • memory/4228-144-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download

  • memory/4228-145-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

    Download