Malicious PDF — malware analysis report

Static analysis result for SHA-256 033580514dce6891…

MALICIOUS

PDF

69.5 KB Created: 2021-02-12 03:32:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c2e3d58cb25b430c4c71d5baff57ed00 SHA-1: 499737b0e73e36f0cb89944a785e1429f76339a2 SHA-256: 033580514dce68916f3076f214f9adcf9f42fae3cee7b35a1b21e90f699d2b15
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://maypoin.ru/wix?keyword=creedence+clearwater+revival+hello+mary+lou+youtube PDF link annotation
    • https://cdn.sqhk.co/jibenapola/kphfhei/superhero_costume_creator.pdfIn PDF document text
    • https://cdn.sqhk.co/forexidof/dHigqRB/the_crossings_premium_outlets_tannersville_pa_black_friday.pdfIn PDF document text
    • https://cdn.sqhk.co/figakeves/1JAekyW/sukosamo.pdfIn PDF document text
    • https://wugumelejemumaj.weebly.com/uploads/1/3/5/3/135324079/rafafakipo.pdfIn PDF document text
    • https://burerekubexu.weebly.com/uploads/1/3/1/3/131381452/9abef66f36096a.pdfIn PDF document text
    • https://cdn.sqhk.co/jawuraxexije/ASmhfam/silver_dollar_city_branson_mo_rides.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/vjeicdA/my_talking_tom_3_game_online.pdfIn PDF document text
    • https://cdn.sqhk.co/manuguwe/ifFjatC/mobile_icon_png_blue.pdfIn PDF document text
    • https://teroxomiguwadi.weebly.com/uploads/1/3/1/3/131380052/xirofibakapo_zupilab.pdfIn PDF document text
    • https://cdn.sqhk.co/bebuvasipen/gizYhjt/tanksmith._io_how_to_get_onyx.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/lEc8dih/dress_up_battle_fashion_game.pdfIn PDF document text
    • https://cdn.sqhk.co/sewadokoka/jdXic3Y/my_etisalat_internet_account.pdfIn PDF document text
    • https://cdn.sqhk.co/vibupiwoxaro/OSgh6XP/81475345288.pdfIn PDF document text
    • https://zunimivivonuz.weebly.com/uploads/1/3/4/0/134017399/somapalinikini-rilovawedolu-wumejinufubexi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/pinijokupa.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/sacral_dimple_ultrasound_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/42445020294.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/keaau_weather_report.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_off0000d478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD478 5300 bytes
SHA-256: 681735b7161302aeba0cfcfdcef29e450238efa727a7df3bf4d20c7dd6886a46
font_01_sfnt_off0000e66a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66A 9892 bytes
SHA-256: dae19713071ed4d25f6be3d7d0d0b7268e7c24584470de9f8e33384b2021fa11

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