Malicious PDF — malware analysis report

Static analysis result for SHA-256 f88b0641f652e4f1…

MALICIOUS

PDF

42.9 KB Created: 2020-08-07 15:19:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b48c796823cb49d9a196250712b317f SHA-1: a05ec8c3d652331ff8c000c4f476a854d6b7c4e2 SHA-256: f88b0641f652e4f1101387461e2e26d1db8d440660110aba1fff6b8bdb459c7b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains but are likely part of a link farm to obscure the malicious intent. The primary malicious link, https://ttraff.com/pify?keyword=afrontamiento+definicion+pdf, is identified as a known malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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=afrontamiento+definicion+pdf In PDF document text
    • http://files.planninginblackandwhite.com/uploads/1/3/2/7/132710655/bobuzugipiz_renele_litazafurusagop.pdfIn PDF document text
    • http://files.im4sound.com/uploads/1/3/0/9/130969242/gafobejat-lodupol-tiguxa.pdfIn PDF document text
    • http://files.immersionchestermere.org/uploads/1/3/0/8/130814229/7123520.pdfIn PDF document text
    • http://files.sunshineandseeley.com/uploads/1/3/1/3/131397927/11c39ce6aacc1.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/1/0429/7929/5385/files/medical_english_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/dumidagixuvadata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4805/0583/files/rizawowikive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3236/0613/files/78572262856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5220/3161/files/how_to_use_3d_viewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6070/6971/files/93807166168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6455/5680/files/english_tutorials_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9906/8310/files/anderson_bridge_experiment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7655/8746/files/74027415159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/this_bright_egg_has_a_warm_shell.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/43963136039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4034/2169/files/towut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7562/4350/files/munawivukazajosigurotiro.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_off00006867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6867 5080 bytes
SHA-256: 26785f27b1d8c5cd4085b5a40ee369c64ed5b262071788e96d8c27160a56928c
font_01_sfnt_off0000799d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799D 10872 bytes
SHA-256: ec6883d23b7241aa521d61b982009da0f35a2f399eaecae1cb301a0da562d116

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