Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d113b0d203bb3c9…

MALICIOUS

PDF

75.5 KB Created: 2021-02-14 16:44:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2cefd45a6005a33409294a3f77b55b49 SHA-1: 508b07113203263e01d564564279107328b31377 SHA-256: 4d113b0d203bb3c9d9cef35ab4d5d55ba4d090deadd668db8961ff9376a10394
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains a high-confidence ML detection and ClamAV signature for phishing. It includes a redirector link that appears to be an image lure for a free download, specifically mentioning 'manual mazda 3 2019'. This suggests a phishing attempt to lure users to a malicious site. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing campaign.

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
  • 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://maypoin.ru/wix?keyword=manual+mazda+3+2019 PDF link annotation
    • http://bilkan.fun/car_mechanic_simulator_2020_pc_baixarlozyw.pdfIn PDF document text
    • http://insitemonitoring.com/49002205374r8mmj.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/zhcjiIR/96103789973.pdfIn PDF document text
    • https://cdn.sqhk.co/vunalogivefu/aWhcv8G/8164065545.pdfIn PDF document text
    • http://hargotel.xyz/pitumebezuwewunuwa82b1r.pdfIn PDF document text
    • https://cdn.sqhk.co/nunemiziku/ggjjd5K/wood_joints_book.pdfIn PDF document text
    • https://cdn.sqhk.co/tejosepu/ewiij05/nda_exam_paper_2020_download.pdfIn PDF document text
    • http://rollernefrit.xyz/sqlite_manager_page_url_mozilla._org4044k.pdfIn PDF document text
    • https://cdn.sqhk.co/wevubuse/j0hfovP/ice_cream_cake_ingredients_carvel.pdfIn PDF document text
    • http://womenita.fun/printable_english_grammar_worksheets_for_grade_6567k5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kosamupim/tenumakideraxi.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/ac_market_ios_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/bimanual_laryngeal_manipulation.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/broken_seether_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/jorusatam.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/wondershare_filmora_7._8._9.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/lajojewevosogavox.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/national_achievement_test.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE05 4924 bytes
SHA-256: d8626f4c7f2d72ea6b196567976f18e4592812950925a2ab84def1e04b680906
font_01_sfnt_off0000eea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA0 10436 bytes
SHA-256: d4e4e8b538a170fa3bc2819b350fdb3a08dbcd190a24d62f425e337f84724011
font_02_sfnt_off0001124b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1124B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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