Overview

overview

10

Static

static

1

hesapharek...df.exe

windows7-x64

10

hesapharek...df.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/02/2023, 17:15

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General

  • Target
    hesaphareketi-01.pdf.exe
  • Size 623KB
  • Sample230206-vsqefaac5x
  • SHA256 d542654502d1d20bd12562b35902d69e78236e4fc1246617788bb8d0d695b86c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • RemoteHost

C2

  • report1.duckdns.org:5890

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-O5GSXS

  • 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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe
      "C:\Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe" C:\Users\Admin\AppData\Local\Temp\tgyzwlkmjer.ywh
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:576
      • C:\Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe
        "C:\Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1796

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        mdsozwlzpn.exe
        • Path C:\Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe
        • Size 361KB
        • SHA256 5874e3f21e3e787ab9bd1eca05066861e2d4cd98d9b5c21cbaf727ac5c28cc67
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        mdsozwlzpn.exe
        • Path C:\Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe
        • Size 361KB
        • SHA256 5874e3f21e3e787ab9bd1eca05066861e2d4cd98d9b5c21cbaf727ac5c28cc67
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        mdsozwlzpn.exe
        • Path C:\Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe
        • Size 361KB
        • SHA256 5874e3f21e3e787ab9bd1eca05066861e2d4cd98d9b5c21cbaf727ac5c28cc67
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        tgyzwlkmjer.ywh
        • Path C:\Users\Admin\AppData\Local\Temp\tgyzwlkmjer.ywh
        • Size 7KB
        • SHA256 5d7f25edaab63bdb2ab87c3666854cc8a31fc635388fc7e47e70ab8b684fc42d
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        xdpejzl.rz
        • Path C:\Users\Admin\AppData\Local\Temp\xdpejzl.rz
        • Size 495KB
        • SHA256 a83c2d72ee314f6f683176c0d908eadccb9a75a10a580461daf2e9bb62bc8b0a
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        mdsozwlzpn.exe
        • Path \Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe
        • Size 361KB
        • SHA256 5874e3f21e3e787ab9bd1eca05066861e2d4cd98d9b5c21cbaf727ac5c28cc67
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        mdsozwlzpn.exe
        • Path \Users\Admin\AppData\Local\Temp\mdsozwlzpn.exe
        • Size 361KB
        • SHA256 5874e3f21e3e787ab9bd1eca05066861e2d4cd98d9b5c21cbaf727ac5c28cc67
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1720-54-0x00000000762B1000-0x00000000762B3000-memory.dmp
        Download

        memory/1796-66-0x0000000000400000-0x0000000000480000-memory.dmp
        Download

        memory/1796-67-0x0000000000400000-0x0000000000480000-memory.dmp
        Download