Malicious PDF — malware analysis report

Static analysis result for SHA-256 092aa02e760d253b…

MALICIOUS

PDF

42.6 KB Created: 2020-08-18 19:55:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8747115edd4f29d40e970798d244685 SHA-1: 1e871e428f5cdda05672b194318b821e89b7ed83 SHA-256: 092aa02e760d253bc40f7fc8be9ade4c0d10ed317efdda97a120150bc3921137
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body and heuristics suggest a lure for free downloads, likely leading to phishing or malware. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=cement+pipe+manufacturing+process+pdf In PDF document text
    • http://files.thesanctuaryatmn.com/uploads/1/3/1/8/131856184/d83262d07.pdfIn PDF document text
    • http://nuradeno.avialinn.com/uploads/1/3/1/6/131606289/julalozulevu-sowokesawuwif-puvesi-wubol.pdfIn PDF document text
    • http://fiweze.monmouthmethodist.org/uploads/1/3/0/9/130969045/0d82f280897c.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/1/0431/9540/0356/files/tixojol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/minimal_pairs_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4503/files/78289526992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/lezamulegub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2016/3999/files/19516874820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0013/3793/files/5816697795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0015/8632/files/63898763347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/4956/8667/files/25533419940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8212/8291/files/by_the_way_bass_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3038/0698/files/fazezepizeziposodabezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1966/5561/files/nusug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/32659273370.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6891 5348 bytes
SHA-256: 73b35d94bf12e2e6823bbe843075ad450d121b86e0573f9727622a650fd6b7d8
font_01_sfnt_off00007aa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA0 10196 bytes
SHA-256: 5f2dc896507351fa1f38248438e6a4eeee196be9a4005177df2fad49b6fb99a1

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