Overview

overview

10

Static

static

1

b5da93afce...JC.exe

windows7-x64

10

b5da93afce...JC.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b5da93afce4cc2a0033afc3c3f8c6c88e8c7aaf53c9f9f08ff29de54a23a774e_JC.exe

  • Size

    526KB

  • Sample

    230815-tdk1qsdf2v

  • MD5

    3fe056d5d90874a57f55cf4671212076

  • SHA1

    b6861fcbcc6637bb7c65d9b08b5363fe72ad965a

  • SHA256

    b5da93afce4cc2a0033afc3c3f8c6c88e8c7aaf53c9f9f08ff29de54a23a774e

  • SHA512

    b3efd370f2d4bf6051d7f7e3456a1d81ecc90c2e34a975449558754c07b9adbdb4719775fb99a49ba140eacfb13100f1e6ddb8e8921684d618d88e78043b0542

  • SSDEEP

    6144:Rp+gggBLTVry4ylZpHYnkWr7F5ZsNm5nVdAB0DAg80Qhu0s/6cYx0XVRsGhd:nXBLA4gpup5mNmnV780QhY80XV3

Score
10/10
guloaderremcosremotehostdownloaderrat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

205.234.181.73:2404

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-RHAGV7

  • 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

      b5da93afce4cc2a0033afc3c3f8c6c88e8c7aaf53c9f9f08ff29de54a23a774e_JC.exe

    • Size

      526KB

    • MD5

      3fe056d5d90874a57f55cf4671212076

    • SHA1

      b6861fcbcc6637bb7c65d9b08b5363fe72ad965a

    • SHA256

      b5da93afce4cc2a0033afc3c3f8c6c88e8c7aaf53c9f9f08ff29de54a23a774e

    • SHA512

      b3efd370f2d4bf6051d7f7e3456a1d81ecc90c2e34a975449558754c07b9adbdb4719775fb99a49ba140eacfb13100f1e6ddb8e8921684d618d88e78043b0542

    • SSDEEP

      6144:Rp+gggBLTVry4ylZpHYnkWr7F5ZsNm5nVdAB0DAg80Qhu0s/6cYx0XVRsGhd:nXBLA4gpup5mNmnV780QhY80XV3

    Score
    10/10
    guloaderremcosremotehostdownloaderrat

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

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

      ratremcos

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks