Malicious PDF — malware analysis report

Static analysis result for SHA-256 25b172899482ed7d…

MALICIOUS

PDF

40.9 KB Created: 2020-08-22 09:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c7d519165829dd88364dd1c1dd29ae9 SHA-1: 37ce23ef0443370967cb15abae09d8facd3b90d9 SHA-256: 25b172899482ed7d0235b9f62966f1a94dfe1b9e2f7829ac5a60e63171bb47f3
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, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=bella+ciao+italian+song+free'. This suggests the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify, indicating a link farm strategy.

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=bella+ciao+italian+song+free In PDF document text
    • http://nilasotu.candlewyckhomes.com/uploads/1/3/0/8/130813765/vifiku.pdfIn PDF document text
    • http://files.soccerbanter.org/uploads/1/3/1/1/131164090/lorixopezideko_jokudebi.pdfIn PDF document text
    • http://files.sugarbakeshopperi.com/uploads/1/3/1/6/131606186/3788690.pdfIn PDF document text
    • http://vorifuga.jamessulkowskifineart.com/uploads/1/3/1/4/131453405/mefivabuluv-futadotolotute-lupuwetaros.pdfIn PDF document text
    • http://files.masonluke.com/uploads/1/3/1/4/131452740/wagoxez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/47106204204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0737/7561/files/vawujesoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5798/files/rusesenaxonadulek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4669/0203/files/73817538751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3593/4370/files/88364216253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/diwapireke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7118/3775/files/carbon_fibre_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1761/7057/files/mimegonegepunazemud.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004808.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4808 4884 bytes
SHA-256: f3251d8bea5d32e8ce012e26b8d1928c27426a0741e40a55216c3242fb57687e
font_01_sfnt_off000058a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A6 14976 bytes
SHA-256: 0be0f45e6a4835eeb996cf22f21a9a9dd6ecca6381da31dbbfef2df13799096a
font_02_sfnt_off000086de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86DE 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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