Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed73a516f1c597a8…

MALICIOUS

PDF

71.4 KB Created: 2021-03-03 20:09:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d2b05c91f8d4a4d1d50cf2036329de4d SHA-1: 3ccc79bc734b1a085d2cb2e2ec4264359e8f4868 SHA-256: ed73a516f1c597a8b0d9eea4e218ec01686347711613640b0982e904e4c073f8
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://bologen.ru/wix?keyword=card+recovery+6.10+registration+key+number PDF link annotation
    • https://cdn.sqhk.co/kitaparek/Xic2m0V/tangled_2_ever_after_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/turaxulefa/4ijojce/souq._com_egypt_laptops.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404727/normal_601ec4531816c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374698/normal_5fd15b4cc8e9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402507/normal_600bab10d978a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379851/normal_5fea03572dc68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415292/normal_6018c218ea84b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_5fe8639ca1722.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/sixolose/kavonozojezov.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/what_does_daring_feat_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/lopstick_lodge_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/garmin_delta_xc_training_modes.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/65032776976.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/guitar_tab_sheet_creator.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/my_phone_answers_with_loudspeaker.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_off0000d928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD928 5880 bytes
SHA-256: a96a42ba3f33cc198a1c73ef820cd82bf5886b272fd5548e3d6dbe0d88123e21
font_01_sfnt_off0000ed2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2B 10488 bytes
SHA-256: 0e023192103c9734a72e8b338942c8a88716f73599ea15ab0578a7962cc35adc