General

  • Target

    payment_1.rar

  • Size

    553KB

  • Sample

    250328-qlhzkawxaw

  • MD5

    358f1c1500cd15daba0ecc8f6ebe59ef

  • SHA1

    a963c1b6ccaef3fea1571ef2d882f748433bc104

  • SHA256

    c84cb91eb22d6788676f2114ad023f2caa70c8ed5ad964e9e7d83056b80ca83a

  • SHA512

    6df62c4b6ac6d6e8b54c5bb953eb94282ae0657b1f7bbc2d329381a6e25434614130ae1f8274c68726e384b0b36116e3b818ca7b90c27a82578636ac9cd5882b

  • SSDEEP

    12288:b4EowDodt6Od0u0xpd7DGBkC8tPTKHtZ2jtF5tGHDYPjEPT49RKKp:bz8UOdKpN8T1D0tF5tGjYwL4rKKp

Malware Config

Extracted

Family

remcos

Botnet

Host-2

C2

176.65.142.14:6060

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-HM3EZ8

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      payment.scr

    • Size

      701KB

    • MD5

      e7bbeae6c391accd957b6475dd5f0e63

    • SHA1

      9460741f8eaff856a8163ad5a22c68dd24a0595e

    • SHA256

      2f423571a318924318504db10008bc4cc48afd550c59caf89b40a04c94a890f7

    • SHA512

      83feec2439997a2b9f7a2ae67966d7ab831d8eb9d8d8836746223b05c73e45e48cce3fc5d6ba420907e3c279ae2916d734b366829404786936cb93bc567f18d8

    • SSDEEP

      12288:LR3BUIa3RVtFRe5L7lwvIuBUz3D46l0xFXc3gIwEL:V3GIQHY5vlI7Mnl0Pg73L

    • Guloader family

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Remcos

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

    • Remcos family

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target

      $PLUGINSDIR/System.dll

    • Size

      11KB

    • MD5

      a436db0c473a087eb61ff5c53c34ba27

    • SHA1

      65ea67e424e75f5065132b539c8b2eda88aa0506

    • SHA256

      75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

    • SHA512

      908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

    • SSDEEP

      192:aVL7iZJX76BisO7+UZEw+Rl59pV8ghsVJ39dx8T:d7NsOpZsfLMJ39e

    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks