Malicious PDF — malware analysis report

Static analysis result for SHA-256 93865506ffc27420…

MALICIOUS

PDF

75.8 KB Created: 2021-03-03 14:18:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3dd4238f57ebdc7c4616e3db5040df78 SHA-1: 7401189ee8f91f708a152685bebdc26a7e3d83a1 SHA-256: 93865506ffc27420603e3150cf811dae2d974b060b24fca6867e3a0cd8966296
136 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
  • 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://botokaw.ru/award?keyword=how+do+i+get+my+turtle+beach+headset+to+work+on+my+pc PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4419433/normal_5fe5e4fba42ac.pdfIn PDF document text
    • https://cdn.sqhk.co/nexasolonit/gfib8C7/photo_collage_apple_store.pdfIn PDF document text
    • https://cdn.sqhk.co/perajomipe/Tp3id0H/7952755416.pdfIn PDF document text
    • https://cdn.sqhk.co/vevigagexoxa/0o3X85q/uncertainty_principle_practical_example.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406454/normal_6029555e5645c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368506/normal_5fe2982522e4a.pdfIn PDF document text
    • http://muzotom.22web.org/are_nico_and_will_solace_together.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408707/normal_5fddaf84527ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427821/normal_5fcb981611dee.pdfIn PDF document text
    • https://cdn.sqhk.co/jojipimuve/bgg7gfD/zuru_x_shot_bubble_ball.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420036/normal_5fe1567547997.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425230/normal_602adefb5ee57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372355/normal_5fe9ffc7cd943.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rogofideb.onlinewebshop.net/where_can_i_recycle_epson_ink_cartridges.pdfIn PDF document text
    • http://lopamosetumug.epizy.com/37427487037.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_off0000eaf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF1 5848 bytes
SHA-256: 351a7698c4fcecbae826580fafb19d1233c76328958a430dbce28cbec8ba4978
font_01_sfnt_off0000febe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBE 10384 bytes
SHA-256: 177483fd0020e537c5b1ef526400ca5108e29526db33ce7ab0a37831ad0725af