Analysis

  • max time kernel
    154s
  • max time network
    173s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    15-09-2021 06:52

General

  • Target

    64e3a0b3d39e61ab529cc4f9a7528d1d.exe

  • Size

    917KB

  • MD5

    64e3a0b3d39e61ab529cc4f9a7528d1d

  • SHA1

    3149dbd400836e7db81c5e2bef130e470057b600

  • SHA256

    8a0f8162ea104c59ca502748f5d4c72d930d21d59d23b0dde2fb6b5fec69947f

  • SHA512

    3d024537168ab19dd2ab38b0bb89a86b2473f9614a4dce021c87fdc0c3a220986a5e2360dec04bddd25519ee20f89d41c740d10364f0f1272505922c3770c3fa

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

RemoteHost

C2

freelife.hopto.org:2404

freelife1.hopto.org:2404

freelife2.hopto.org:2404

freelife01.hopto.org:2404

freelife3.hopto.org:2404

freelife4.hopto.org:2404

freelife5.hopto.org:2404

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

    pastananiceforwhat-QQD2AI

  • 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

    notepad;solitaire;

Signatures

  • Remcos

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\64e3a0b3d39e61ab529cc4f9a7528d1d.exe
    "C:\Users\Admin\AppData\Local\Temp\64e3a0b3d39e61ab529cc4f9a7528d1d.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Windows\SysWOW64\logagent.exe
      C:\Windows\System32\logagent.exe
      2⤵
        PID:1916

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1100-64-0x0000000000230000-0x0000000000231000-memory.dmp
      Filesize

      4KB

    • memory/1100-65-0x0000000075C71000-0x0000000075C73000-memory.dmp
      Filesize

      8KB

    • memory/1916-66-0x0000000000000000-mapping.dmp
    • memory/1916-69-0x0000000000280000-0x0000000000281000-memory.dmp
      Filesize

      4KB

    • memory/1916-68-0x0000000000160000-0x0000000000161000-memory.dmp
      Filesize

      4KB

    • memory/1916-70-0x0000000010590000-0x000000001060C000-memory.dmp
      Filesize

      496KB

    • memory/1916-71-0x0000000000400000-0x0000000000479000-memory.dmp
      Filesize

      484KB

    • memory/1916-72-0x00000000000E0000-0x00000000000E1000-memory.dmp
      Filesize

      4KB