Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f488643bd199962…

MALICIOUS

PDF

41.8 KB Created: 2020-08-14 04:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7353f9f55160fa9d1a026b114b924e71 SHA-1: 3c1a872a61712f27fc4c66c00e2a7fc792f8b8ba SHA-256: 3f488643bd199962c79581f383a4410d5d31014ab898fd2db4c848b0d767ba18
194 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=natasha+bedingfield+unwritten+song'. This indicates the document's primary 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=natasha+bedingfield+unwritten+song In PDF document text
    • http://dozafa.starzsalon.com/uploads/1/3/1/4/131407406/nutiresuwenevosi.pdfIn PDF document text
    • http://files.nuancetravelacademy.com/uploads/1/3/1/8/131856232/vezilidozakatuw-kanajux-nafimevinezafuz-nufagurabavik.pdfIn PDF document text
    • http://xilotikes.thedougmargroup.com/uploads/1/3/0/7/130776021/tiwipozidamusuzotala.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/1/0435/2013/1236/files/bozebibipej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4613/2119/files/tabubobilopakewodudadup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1060/5735/files/101_reading_test_2_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7166/7352/files/tozezusomilibodab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6583/4649/files/minecraft_ps3_downloads.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6904/files/80243502606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9050/8960/files/65033545587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9674/files/30066243116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9131/0232/files/facebook_notification_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/practicing_chromatic_guitar_scales.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 1

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_off00006532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6532 5372 bytes
SHA-256: 26eab419313706825c397fd3ef212b421b658fcd02109efff0af6af08af7662e
font_01_sfnt_off00007775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7775 10760 bytes
SHA-256: 7a76543ddb0a771ada5f9374631b9f88bd614196087410521818983347ce3066

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