Overview

overview

10

Static

static

10

CONFIRMACI...DF.exe

windows7_x64

10

CONFIRMACI...DF.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 12:00

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General

  • Target

    CONFIRMACION DEL PEDIDO CVE6535,PDF.exe

  • Size

    372KB

  • MD5

    a962399ee6a55b52ad2432702a800597

  • SHA1

    2ae09b6b627b86bb4a6e2e7b2d33fdc6f8e1579f

  • SHA256

    329886b8af71b45a41f94d0d9a69761b6b6fe80d36b7f7a6201fd97dc33234d5

  • SHA512

    7914d464cbba0de5392a19d9bd986be7246fca19d15cad5303cf81f1a9dd56cbf94729bd5d1f7f2b2b3e0cb545bb689cc6114b8ee08a8c508c4f8d1eeb86b8a6

Score
10/10
remcossnakebotgracedcoreentityratrezer0snakebot

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

GRACED

C2

thankyoulord.ddns.net:5050

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-0S5XD9

  • 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

    wikipedia;solitaire;

Signatures

  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    coreentity
  • Remcos

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

    ratremcos
  • SnakeBOT

    SnakeBOT is a heavily obfuscated .NET downloader.

    snakebot
  • Contains SnakeBOT related strings 1 IoCs
    snakebot
  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    rezer0
  • Uses the VBS compiler for execution 1 TTPs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CONFIRMACION DEL PEDIDO CVE6535,PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\CONFIRMACION DEL PEDIDO CVE6535,PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CfGuVGvIV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB4C2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:956
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "{path}"
      2⤵
        PID:1508

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpB4C2.tmp
      Filesize

      1KB

      MD5

      ee1ed86147dde107904d30a585a6b50d

      SHA1

      83c33b93fdcbc8d4790faba9fb17bd41a5316d49

      SHA256

      8c7ee9c485f2fe1f45fcde438f94b694c206ffbea412ca9cb8e3fb7279b9f4c3

      SHA512

      61cecb49215e8a8e3c4a84628df30a154e49a807ce0703c5b6fb5bedb368c6ab5b3af5a9ac831cdcacb3c9fcafda69116843f9d07712256763a8ac9fcee6e3b4

      Download Submit

    • memory/956-58-0x0000000000000000-mapping.dmp

      Download

    • memory/1508-61-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-65-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-74-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-73-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-60-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-63-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-70-0x0000000000413A84-mapping.dmp

      Download

    • memory/1508-69-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-66-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1508-67-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/2032-57-0x0000000004250000-0x000000000427C000-memory.dmp

      Filesize

      176KB

      Download

    • memory/2032-54-0x0000000000DE0000-0x0000000000E46000-memory.dmp

      Filesize

      408KB

      Download

    • memory/2032-55-0x0000000075221000-0x0000000075223000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2032-56-0x0000000000260000-0x0000000000268000-memory.dmp

      Filesize

      32KB

      Download