Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9a848607e72c79…

MALICIOUS

PDF

50.3 KB Created: 2020-08-21 08:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 22d0d8313aad4865ff28f32b34db2e8b SHA-1: f91e57900afc76079f8c56f80fc571fe94a51b9e SHA-256: 7e9a848607e72c791715a915e74d37d2043fda18835381b07a8d1b23456885c4
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a likely phishing or scam attempt. The ML classifier strongly suggests maliciousness, and the presence of a redirector link confirms a malicious intent to lead the user to a harmful destination.

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=healthy+food+guide+fodmap+pdf In PDF document text
    • http://fadem.jacksonhighley.com/uploads/1/3/2/6/132695643/387394.pdfIn PDF document text
    • http://gesuru.reachpartnership341.org/uploads/1/3/0/8/130873851/3412196.pdfIn PDF document text
    • http://golidari.purduedsp.org/uploads/1/3/1/3/131383791/dbb75ef8a63ca.pdfIn PDF document text
    • http://files.saratoga-bagels.com/uploads/1/3/1/4/131454151/fesibazopewiwep-relufu.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/1/0431/5709/4551/files/email_format_sample_cbse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/veletogirenoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/39448015751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1353/7951/files/lords_of_the_realm_ii.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/nudikunurinik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9604/7783/files/seismic_inversion_theory_and_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3330/4993/files/99015024652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1403/6383/files/31025172752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/98816241041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2870/0571/files/vitazo.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 3

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_off0000875d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x875D 5244 bytes
SHA-256: 60f31f9efdbfc3a16e41b7bb1993ca79724a38d473281aca2bf499b533852b74
font_01_sfnt_off00009920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9920 10424 bytes
SHA-256: 6d11b97325334380d7eceb32b8e91e1144604db5504bf1e0998ba1767e704277

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