General

  • Target

    02a113310c4b7d8b1b47afeff0f4df059d212400b29edba2b0e5754dd4748289

  • Size

    1.8MB

  • Sample

    250212-qbc1kaslaj

  • MD5

    f2844738ccf76ce8bd040cb4b8af294b

  • SHA1

    e32a49420679ea5922cf1648cff46909243cc370

  • SHA256

    02a113310c4b7d8b1b47afeff0f4df059d212400b29edba2b0e5754dd4748289

  • SHA512

    8eab5dfa8f37139bbd9476e48ffeda562b09231ff4d98b85dfdf0deaea4d83acd9850f807700f36f028dbe7d392231165c6319651dd80626af9b12290cdfc24e

  • SSDEEP

    49152:vc6zng2TaAAmo/SevAFQc6zng2TaAAmo/SevAFv:v3cMo6jQ3cMo6jv

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    evqqlnwkcmogylje

Extracted

Family

remcos

Botnet

FEB 09

C2

oktoviyanto.ddns.net:9373

103.186.117.61:9373

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-Z2L02T

  • 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

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    evqqlnwkcmogylje

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5612460560:AAHyXkizBwpknHBFsEt3GDIwhLylabAVwjM/

Targets

    • Target

      Bukti_Transfer...WU.exe

    • Size

      1.0MB

    • MD5

      e48ca032affdeea3ee88874ed39c4dcd

    • SHA1

      ca3e925e87dc3bc5bd1878bc9d74cd709d7a9622

    • SHA256

      21224cc236d63c5d3d7d3f80be375d3c2408f7a91b08eb6a16d70c7db21106d9

    • SHA512

      4a727c97e2af20c296f01f89953fc20908d628cc97c4fa372d15d003427c5f0e2b2146d214df4a22b8b62fb46f121df0021cb18056bfba6c7ec824c892b3da53

    • SSDEEP

      24576:D+wIZTFg2BK8sgD08CwrjYFMIzsBk6tkAfiRN+BU:D+wIZTOBRgDhnY2M6tV6RND

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Agenttesla family

    • Remcos

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

    • Remcos family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    • Target

      Bukti_Transfer..WU.exe

    • Size

      1.0MB

    • MD5

      e48ca032affdeea3ee88874ed39c4dcd

    • SHA1

      ca3e925e87dc3bc5bd1878bc9d74cd709d7a9622

    • SHA256

      21224cc236d63c5d3d7d3f80be375d3c2408f7a91b08eb6a16d70c7db21106d9

    • SHA512

      4a727c97e2af20c296f01f89953fc20908d628cc97c4fa372d15d003427c5f0e2b2146d214df4a22b8b62fb46f121df0021cb18056bfba6c7ec824c892b3da53

    • SSDEEP

      24576:D+wIZTFg2BK8sgD08CwrjYFMIzsBk6tkAfiRN+BU:D+wIZTOBRgDhnY2M6tV6RND

    • Remcos

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

    • Remcos family

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks