Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e3752231a2ce01…

MALICIOUS

PDF

49.0 KB Created: 2020-08-06 23:21:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da61af7c49609ca7676cbb78356134c8 SHA-1: 53bc6bf2ec0579467484bf7dbe525f208e31697e SHA-256: 87e3752231a2ce0102d3af7f4588b0f6312ca880326af175d98bb036926fc0df
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector infrastructure known for hosting malicious content. The primary redirector URL is https://ttraff.cc/pify?keyword=auditoria+administrativa+benjamin+franklin+3ra+edicion+pdf, which is used to funnel victims to a link farm of other PDFs. This suggests a phishing or scam campaign aiming to distribute further malicious content or collect user information.

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=auditoria+administrativa+benjamin+franklin+3ra+edicion+pdf In PDF document text
    • http://files.healthybodyhappyhearts.com/uploads/1/3/1/3/131381658/9398549.pdfIn PDF document text
    • http://files.eternalroundring.com/uploads/1/3/0/7/130740477/5176819.pdfIn PDF document text
    • http://files.midlandfair.com/uploads/1/3/2/7/132740519/50251df31fc5.pdfIn PDF document text
    • http://files.lady-juju.com/uploads/1/3/1/6/131606758/bibevutomutara-melidagokopa.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/1/0430/1769/9477/files/luvefaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/dinudimalisomixudurufepek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4937/7177/files/zazebewuruler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0830/8886/files/xbox_one_controller_bluetooth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/zulijosonawazovizeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/wijorubevid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/rowofixatorike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/xapewedomotexison.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/marketing_channels_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/13738875076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.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_off0000806e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x806E 5796 bytes
SHA-256: 9e886abd23729a9f8669e11eaf5b0a2a11db7af14f64d21cb6bc1ada562a4390
font_01_sfnt_off0000941e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x941E 10132 bytes
SHA-256: dc8e00124f814f6746aaed690f5aabb416c470d44dde64d089d1fb1fa496ecb0

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