Malicious PDF — malware analysis report

Static analysis result for SHA-256 4398f86c2b614811…

MALICIOUS

PDF

80.4 KB Created: 2021-03-01 18:59:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d7ecb7be9171f561d4958a3842c4bc1b SHA-1: ed30152d62fa0db235b2a005fe868e8da7898837 SHA-256: 4398f86c2b6148115893a2ca125a985f9850f41188656f6894e04827eb9ac93b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/award?keyword=is+the+white+xbox+one+controller+bluetooth PDF link annotation
    • https://cdn.sqhk.co/sadirorig/jhaCihI/number_photo_collage_maker_online.pdfIn PDF document text
    • http://lnstagram-office.com/79473870148jqm72.pdfIn PDF document text
    • http://mananeje.66ghz.com/action_crackeado_2019.pdfIn PDF document text
    • http://getplafond.xyz/62962299772gntms.pdfIn PDF document text
    • http://prolac.ru/projected_cash_flow_template_free3338c.pdfIn PDF document text
    • http://vipmanmarket.space/super_mario_land_2_gameboy_color_rom42guj.pdfIn PDF document text
    • https://cdn.sqhk.co/lajefage/jajboXO/72316175341.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/genijusemu/veripomo.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/comprehensive_agrarian_reform_law_ppt.pdfIn PDF document text
    • http://vinixozu.rf.gd/tezakabukalonezato.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/87144142621.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/pevedaxafuzemefopa.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/c_o_form_e_acfta.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/antrenmanlarla_geometri_cretsiz_indir.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/6679810305.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_off0000ffc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC3 4916 bytes
SHA-256: 878e48d8659c27df636fda0b81036461076887c487819325e78f008da66135ac
font_01_sfnt_off00011090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11090 10516 bytes
SHA-256: 6d67325c77817be49655e36dfb3bcdd02bb932da194c433818058cdef7857e7d