Overview

overview

10

Static

static

1

Hesaphareketi-01.exe

windows7-x64

10

Hesaphareketi-01.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/02/2023, 16:31

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General

  • Target
    Hesaphareketi-01.exe
  • Size 522KB
  • Sample230214-t1d6psea8t
  • SHA256 4d8144373754035a1f2efa73853ee424d7f69bdd1b8c0cd97426d25733f00ed7
  • 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
  • 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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Hesaphareketi-01.exe
    "C:\Users\Admin\AppData\Local\Temp\Hesaphareketi-01.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4292
    • C:\Users\Admin\AppData\Local\Temp\jtehmm.exe
      "C:\Users\Admin\AppData\Local\Temp\jtehmm.exe" C:\Users\Admin\AppData\Local\Temp\ocqig.g
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4796
      • C:\Users\Admin\AppData\Local\Temp\jtehmm.exe
        "C:\Users\Admin\AppData\Local\Temp\jtehmm.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4848

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        bqlnhpjqh.njr
        • Path C:\Users\Admin\AppData\Local\Temp\bqlnhpjqh.njr
        • Size 495KB
        • SHA256 73f4efd6b6a09e88d9da7dee10ab04ad9ccd531b0045ab0f2cfb123da45410bd
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        jtehmm.exe
        • Path C:\Users\Admin\AppData\Local\Temp\jtehmm.exe
        • Size 101KB
        • SHA256 a2fa6e4fb63e40fa709d455dabaa53ad7f96ae609a496629486e83a6af55df6e
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        jtehmm.exe
        • Path C:\Users\Admin\AppData\Local\Temp\jtehmm.exe
        • Size 101KB
        • SHA256 a2fa6e4fb63e40fa709d455dabaa53ad7f96ae609a496629486e83a6af55df6e
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        jtehmm.exe
        • Path C:\Users\Admin\AppData\Local\Temp\jtehmm.exe
        • Size 101KB
        • SHA256 a2fa6e4fb63e40fa709d455dabaa53ad7f96ae609a496629486e83a6af55df6e
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        ocqig.g
        • Path C:\Users\Admin\AppData\Local\Temp\ocqig.g
        • Size 7KB
        • SHA256 7aca1ae81d5abc0c993685769d3e0320b7b4a92318fee879f80f3167698282aa
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/4848-139-0x0000000000400000-0x0000000000480000-memory.dmp
        Download

        memory/4848-140-0x0000000000400000-0x0000000000480000-memory.dmp
        Download