Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc6b2bda1efbce6…

MALICIOUS

PDF

70.8 KB Created: 2021-02-07 07:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 42b9791cdcc6a3defae8882da3623949 SHA-1: abe845c6073e05d1363feec0adff63cdf350a731 SHA-256: 1dc6b2bda1efbce65dfe6a0237a175a741da336dd7b67dbb7089b6a93993a96c
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://jacksth.ru/123?utm_term=contribution+to+a+critique+of+political+economy PDF link annotation
    • http://helplnstagramcontact6088757.com/lord_of_the_rings_return_of_the_king_pc_downloadgqs70.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/ROfhehb/crazy_sick_scary_math_teacher_is_sick_model.pdfIn PDF document text
    • http://chebsvet.ru/grammar_and_vocabulary_for_toeic_testmrt5n.pdfIn PDF document text
    • http://agentsecure.space/gnostic_teachingsahyij.pdfIn PDF document text
    • http://nickned.me/understanding_video_games_the_essential_introductiontld0t.pdfIn PDF document text
    • http://7evenrp.ru/zombie_defense_castle_empire13tqb.pdfIn PDF document text
    • https://cdn.sqhk.co/bovutolomevo/jjOcjjT/jafafepaloxorapiwakilu.pdfIn PDF document text
    • http://noveratufexi.22web.org/63935726908.pdfIn PDF document text
    • http://mekozeka.66ghz.com/anstoss_3_gratis_vollversion.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/wetevali/ielts_writing_part_1_vocabulary.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/ellen_macarthur_foundation_fashion_report.pdfIn PDF document text
    • http://mepenaxuwijun.rf.gd/appendix_adalah.pdfIn PDF document text
    • http://zotuxegusam.epizy.com/images_of_nature_photos_free.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/joromupuboriju.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/luvosuworufodowomolarado.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/24235964139.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/33389124462.pdfIn PDF document text
    • http://wasalesex.epizy.com/852911233.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_off0000d574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD574 5256 bytes
SHA-256: 5262a494476c56b1f60ec82ff2d8ca88ad1e7465f39dc1ec9ca0aede0f602f5e
font_01_sfnt_off0000e752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE752 11436 bytes
SHA-256: fb7f8b80443d0f2bb15ce1469f0e2ee1ace48a5a00fc89a678929536c1e0eb27