Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb92bd6ebca35186…

MALICIOUS

PDF

75.9 KB Created: 2021-02-18 21:22:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 57ad4e8b028a6a2eb943bead77e0b88b SHA-1: b52beb2394029ff76edbb7ec1482215c4d561d31 SHA-256: fb92bd6ebca351868b632d5d2787826095774307a7e738edd16f515eacb99b93
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://druttle.ru/123?utm_term=does+haise+become+kaneki+again PDF link annotation
    • https://cdn.sqhk.co/gibuzini/PhgayYW/ashampoo_droid_optimizer_review.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/5zgjOge/duck_life_treasure_hunt_unblocked_hacked.pdfIn PDF document text
    • https://cdn.sqhk.co/tosijoxopum/gijimq8/jowebof.pdfIn PDF document text
    • http://dronextactical.xyz/cazadora_de_hadas_gratiskjcr2.pdfIn PDF document text
    • http://helpverifedbadges.com/tivoriwujunoez5wi.pdfIn PDF document text
    • http://esplus.pro/32351058666cpv9u.pdfIn PDF document text
    • https://cdn.sqhk.co/nozujeraguje/riimbsG/easy_thai_reading.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/VhhYngc/basic_english_grammar_exercises_download.pdfIn PDF document text
    • http://discount50it.pro/caste_certificate_application_form_in_andhra_pradeshptwqi.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/geNlgfJ/bluetooth_switch_adapter.pdfIn PDF document text
    • http://livecopyrightverification.com/refikafezapd9cz.pdfIn PDF document text
    • http://fitit.space/ethnography_as_a_form_of_researcha2dfj.pdfIn PDF document text
    • http://italywow.space/game_ringtone_download_pagalworldt8fj4.pdfIn PDF document text
    • http://docita.fun/77696353207zfmrd.pdfIn PDF document text
    • http://neo-tp.ru/wow_vanilla_elemental_shaman_guiden2b0s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eccf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCF 5288 bytes
SHA-256: d034bf72058546f81c77d5325f6b153402930ed9cba415362c0eb5f9217b560c
font_01_sfnt_off0000feb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB2 10536 bytes
SHA-256: 3da0504b763cea84c65190d60b857dc529a11f1f32b2f402edb45ca8cdf056d5