Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6b20cfa79dad92…

MALICIOUS

PDF

38.3 KB Created: 2020-09-17 00:37:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 1698c5b2c4746032b2f67315367e3743 SHA-1: 05a48dbf990d43cefafe857f4d0f87f1d4340954 SHA-256: 2b6b20cfa79dad926f1196e7ee07ec40c78181a0ab149d30cb0bba67519b5da6
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.ru/wix?keyword=setting+timex+1440+sports+watch+manual In PDF document text
    • http://kawuzed.nkstory.org/uploads/1/3/1/3/131381428/bofabatu.pdfIn PDF document text
    • http://gipoxevor.majestic52.com/uploads/1/3/0/7/130775778/wodoxerod-mefali-movizow-lizuvunid.pdfIn PDF document text
    • http://gadoba.yestoyouthgala.org/uploads/1/3/2/8/132814930/420062.pdfIn PDF document text
    • http://files.bhamcommunityacupuncture.com/uploads/1/3/0/7/130776327/cc67b95f7f.pdfIn PDF document text
    • http://gelexewef.grandviewcresthoa.com/uploads/1/3/1/1/131164250/3582825.pdfIn PDF document text
    • http://files.kdefensemartialarts.com/uploads/1/3/1/1/131163833/30345b.pdfIn PDF document text
    • http://jibaju.vhoggmeier.com/uploads/1/3/1/0/131071145/wuvaratizifukesalaw.pdfIn PDF document text
    • http://files.cleocork.com/uploads/1/3/0/9/130969999/347321b464a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/tiretepanenewidovomaposus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4650/8456/files/bad_blood_lyrics_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/98035588585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/5675/7667/files/jujobavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9282/0647/files/12892617395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1321/8210/files/wibomazipurifapo.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_off0000557a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x557A 5892 bytes
SHA-256: df4e135f7740b5e59c39708ebb65ba50730c682627bcc71b4e5d1487c33f9fb2
font_01_sfnt_off0000697f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697F 10200 bytes
SHA-256: 6b5b94a01daffa620767ee580805d69681ae4f0585b1e46df7e990ab2412bd00

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