Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5997057b962e745…

MALICIOUS

PDF

68.5 KB Created: 2021-03-06 17:41:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8919c6c353d8a2833aefc76406a361bf SHA-1: 215294922b862d95157d785376ebce753202173a SHA-256: b5997057b962e74534a2b3e5dfdca11ee32b76d7bb72ef9a9ad89255dd516780
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/award?keyword=the+quran+pdf+download PDF link annotation
    • https://modotetizifoxi.weebly.com/uploads/1/3/1/6/131637555/dejobuwilipakamos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449600/normal_601448b85ad0e.pdfIn PDF document text
    • https://cdn.sqhk.co/wumerelup/Mhco5Wl/radio_flyer_walker_wagon_australia.pdfIn PDF document text
    • https://cdn.sqhk.co/riteximeras/i5gAFge/anime_couple_dress_up_games_online.pdfIn PDF document text
    • https://kumakisatosoref.weebly.com/uploads/1/3/5/3/135328720/9662405.pdfIn PDF document text
    • http://sipataj.sportsontheweb.net/mutubojepo.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/28917051320.pdfIn PDF document text
    • https://vulopinuvi.weebly.com/uploads/1/3/1/1/131164419/7861194.pdfIn PDF document text
    • http://zebrait.fun/788396821665wzje.pdfIn PDF document text
    • http://sepoxudozixo.sportsontheweb.net/what_is_development_biology_embryonic.pdfIn PDF document text
    • http://titoto.xyz/zotovivuripezo3hzko.pdfIn PDF document text
    • https://xufetujada.weebly.com/uploads/1/3/4/7/134745175/dajomuniruzonur.pdfIn PDF document text
    • https://lukawonudos.weebly.com/uploads/1/3/5/3/135320707/nemaduwumizig.pdfIn PDF document text
    • http://mazikopipovix.mywebcommunity.org/books_of_the_bible_old_and_new_testament_word_search_answers.pdfIn PDF document text
    • https://vobawele.weebly.com/uploads/1/3/5/3/135334277/9554660.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383687/normal_6027ba638ed8c.pdfIn PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/fagikusozitosonubun.pdfIn PDF document text
    • https://cdn.sqhk.co/rusobotakox/3gcgjjc/21st_birthday_cake_ideas_for_male.pdfIn PDF document text
    • http://medyayazilimtr.com/35107471590f7ugt.pdfIn PDF document text
    • https://cdn.sqhk.co/pigalixow/miiKicI/89830072302.pdfIn PDF document text
    • https://laxoweveludek.weebly.com/uploads/1/3/0/9/130970009/zazizikulakuru.pdfIn PDF document text
    • http://help-lnstagramcopyrights-verify.com/what_are_the_elements_of_film_score_meansoy2r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zogoxuf.atwebpages.com/tim_ferriss_net_worth_forbes.pdfIn 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_off0000d087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD087 5116 bytes
SHA-256: fe7e2de0033c7ef1a3730202aa6968f505a0eabf80152424f66712c1fbe1933c
font_01_sfnt_off0000e1f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F9 10184 bytes
SHA-256: 99a6fab7ac94cc6550ee364e40ef7876c3cc6459eba70796c2965edf29aef4b0