Malicious PDF — malware analysis report

Static analysis result for SHA-256 084e7bb61e266531…

MALICIOUS

PDF

68.2 KB Created: 2021-02-25 15:10:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ace0b6a8154feb34a6abc4e5e9083635 SHA-1: 8043c0b3762c6b48959ba4411ed1c4b9237c60a8 SHA-256: 084e7bb61e266531b1edf7e61202af3503929dde30e45cace119f534fe99c108
194 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
  • 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=cuisinart+msc-600+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368501/normal_60222239a6751.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393033/normal_5fd9c9d5e5426.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401712/normal_5ff210cd9d589.pdfIn PDF document text
    • http://axecheat7.xyz/the_shack_restaurant_cherry_grove_beach_scz8c5v.pdfIn PDF document text
    • http://lightly.store/58833182266qu3k8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413705/normal_6009156e2db9f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496616/normal_5ff55700abc7c.pdfIn PDF document text
    • http://herss.space/moto_g_power_wireless_chargingkmz58.pdfIn PDF document text
    • http://disconto50.info/how_to_put_ge_front_load_washer_in_diagnostic_modeqf55e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471996/normal_602405f9adb48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368485/normal_5ff3aa2c72d19.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vumamuv.myartsonline.com/mejaneki.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/tonililuwow.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/viritu.pdfIn PDF document text
    • http://zupitatip.atwebpages.com/61691111635.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/gesojalamazetizi.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/35610994551.pdfIn PDF document text
    • http://doriponesarom.myartsonline.com/what_is_the_importance_of_potential_and_kinetic_energy_in_our_daily_life.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/free_online_budget_calculator_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/viliwedimurokalu.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_off0000cf1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1D 5180 bytes
SHA-256: 3ca192a9e33e875844d6ecfcc47053a7c43502385025da63aa598235eaf5e109
font_01_sfnt_off0000e0a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A1 10192 bytes
SHA-256: e821d2b17aab6ab0bcac593699fb22f76e24a2998612ff56651aa4e37fa199a8

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