Overview

overview

10

Static

static

blah.xlsb

windows10_x64

10

Sharing

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General

  • Target

    blah.xlsb

  • Size

    159KB

  • Sample

    220112-13ctzsecb3

  • MD5

    805a0d3cef76c8e8270788ebfc2cf425

  • SHA1

    c7f7991e273b25fd7951d27231cbacd13305f8f6

  • SHA256

    72f8b324eaaf5fa67899a80caa363c1a6fa1ac0722554311fdf634f5cbdb32fe

  • SHA512

    a049ef4fb0dbe9f02b0c49fffcb8444193ca15c670b39b469f6d10541615809949b1b9f8472d61fc6f3be885ed11f31392ef7bc90d78d9d5b64e30a715b0fa71

Score
10/10
remcosshiestyagilenetcollectionrat

Malware Config

Extracted

Family

remcos

Version

3.3.2 Pro

Botnet

Shiesty

C2

shiestynerd.dvrlists.com:10174

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

    Shiesty-GI88AX

  • 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;

Targets

    • Target

      blah.xlsb

    • Size

      159KB

    • MD5

      805a0d3cef76c8e8270788ebfc2cf425

    • SHA1

      c7f7991e273b25fd7951d27231cbacd13305f8f6

    • SHA256

      72f8b324eaaf5fa67899a80caa363c1a6fa1ac0722554311fdf634f5cbdb32fe

    • SHA512

      a049ef4fb0dbe9f02b0c49fffcb8444193ca15c670b39b469f6d10541615809949b1b9f8472d61fc6f3be885ed11f31392ef7bc90d78d9d5b64e30a715b0fa71

    Score
    10/10
    remcosshiestyagilenetcollectionrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Remcos

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

      ratremcos

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Blocklisted process makes network request

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

      agilenet

    • Accesses Microsoft Outlook accounts

      collection

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Remote System Discovery

1
T1018

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks