Malicious PDF — malware analysis report

Static analysis result for SHA-256 01079ebfeaf8916b…

MALICIOUS

PDF

71.5 KB Created: 2021-02-18 06:53:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d2722458b3e3ff195b84d019f1714644 SHA-1: b883738c2fd02fde191f59360fd93dab0c240335 SHA-256: 01079ebfeaf8916b7436ba0a7c0cb06cc7e9bd2fc4dc3ddb20e15b9516132885
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=area+of+a+right+triangle+worksheet+pdf In PDF document text
    • http://idealica-co.site/laxebomixixiwurisuretixhyckd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365619/normal_600a86405fd3a.pdfIn PDF document text
    • http://alkim.xyz/blue_jays_2020_schedulellg2q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464710/normal_6008e4768ef0a.pdfIn PDF document text
    • http://tipopajokoti.iblogger.org/tangled_full_movie_free_in_telugu.pdfIn PDF document text
    • http://greenbike.shop/kung_fu_panda_3_full_movie_download_300mbh1a7o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448545/normal_60222558b5aa3.pdfIn PDF document text
    • http://lnstagram-copyright-supports.com/xeburevq24x.pdfIn PDF document text
    • http://wersita.space/mercedes_a_class_2019_manual_transmissionk2l3n.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/jozaponi/wogizebejub.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/cocoon_travel_sheet_silk.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/59509045282.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/investigative_reporters_and_editors_conference.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/turkish_march_violin_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/widukozukagebikalamake.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/never_going_back_again_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/animation_mentor_rigs.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/83711702301.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_off0000d9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BC 5448 bytes
SHA-256: c091a0eadd7ad6ac8f142d834cc1e649fda8e844ac11e5944a7194ba310609b5
font_01_sfnt_off0000ec56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC56 10572 bytes
SHA-256: bc5f6a1955b30a5ca0403e3fc7d7c95df34349a5a7db762520528225abc45b6f

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