Malicious PDF — malware analysis report

Static analysis result for SHA-256 70214114650f5d98…

MALICIOUS

PDF

34.4 KB Created: 2020-08-21 01:59:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26bf51f198bd3a620e2865264d7a19d2 SHA-1: a1dd256509c67192fbf1a73f240771adddd9bb99 SHA-256: 70214114650f5d989a0f971431928e7c70a220e7dd9aa654c0c0594fd5d6532b
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 URLs that appear to be part of an SEO link farm designed to lure victims. The primary redirector URL is https://ttraff.cc/pify?keyword=aula+virtual+unan+managua+informatica+basica, which is flagged as malicious.

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.cc/pify?keyword=aula+virtual+unan+managua+informatica+basica In PDF document text
    • http://batosipi.getrealnaturalhealth.com/uploads/1/3/0/8/130813848/5660539.pdfIn PDF document text
    • http://files.frameglaze.net/uploads/1/3/0/8/130874010/7195414.pdfIn PDF document text
    • http://files.ogdenpediatrics.org/uploads/1/3/1/4/131453432/paxelenabobapasiboni.pdfIn PDF document text
    • http://nopirapo.artfulcatholic.net/uploads/1/3/2/8/132814194/3896073.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/1/0437/3970/9605/files/belongingness_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/sunefufoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7274/1791/files/falexivopusidaxikiwuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/sasexobirad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/vujelakedini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/gidizapeposil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1268/5977/files/chamberlain_liftmaster_professional_formula_1_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6768/6558/files/kisigomew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9109/1875/files/13771911374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/89590044233.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
🗂 Part of campaign: ogdenpediatrics.org 7 samples

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_off0000494a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494A 5392 bytes
SHA-256: cd5a1decb62eed4542458efe2668824521ffff152e02f68ef4056c3e8a6ff20e
font_01_sfnt_off00005b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8A 9600 bytes
SHA-256: 784d6b5eef42f1d676b0a25cd22c59503016ead764fa9a9cb777b576d046d802

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