Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ccdbab291a7e82…

MALICIOUS

PDF

41.9 KB Created: 2020-08-23 07:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 826ad955053e1295a153ba9f69cfaefe SHA-1: 9c4e4243b01ebcab8351a3c4c2f219ac6859cf40 SHA-256: 80ccdbab291a7e827e734a74e10ad700c019481f01d94aa542e890395ac39c1c
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL associated with SEO spam and phishing lures. The document body, though heavily obfuscated, contains text related to an "Earthquake intensity and magnitude worksheet" and the malicious URL, suggesting a pretext for the user to click the link. The presence of numerous external PDF links further indicates a link farm or SEO manipulation tactic to distribute malicious content.

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=earthquake+intensity+and+magnitude+worksheet In PDF document text
    • http://gaguxamep.fleurspressed.com/uploads/1/3/2/6/132696067/4703236.pdfIn PDF document text
    • http://files.riversideministries.com/uploads/1/3/0/9/130969241/0476adc11.pdfIn PDF document text
    • http://files.spencersnygg.com/uploads/1/3/1/6/131637477/bofipogisamew-wajazu-tilurijiba-pexixupegus.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/1/0432/5117/1478/files/40326203687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4573/2007/files/nogaxesade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4630/4920/files/xapesozipura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3979/3050/files/fodedunuweti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7636/2150/files/62244409185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2689/files/hydraulic_bearing_puller.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/microbial_ecology_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/punctuation_marks_quiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0358/files/70277933334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1962/2808/files/extent_report_gradle_dependency.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8440/6181/files/revagedivepiwujitawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7929/5385/files/bugetopowasusa.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_off0000650b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650B 5548 bytes
SHA-256: 60fee08864994453ca0aa243450219bbc1945fdd3739c01e107bc124fcf957a2
font_01_sfnt_off000077cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CD 10272 bytes
SHA-256: f5f3694c26384a1227c4273b4693fed831acaf47a02bbd7b65f6e84044c93fe9

Open this report in the interactive analyzer, or submit your own file for analysis.