Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ff16859a0238b8…

MALICIOUS

PDF

47.2 KB Created: 2020-08-05 03:00:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5a793c1b1489a920d15767cb4b7504d SHA-1: 65d4f96242dce04c320a412b14d68c7bd33dd35c SHA-256: f6ff16859a0238b88a794e1990508ab12154710aab74ca803fdff5950a4a0d02
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=corpse+bride+piano+solo+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. The ML classifier also strongly flagged this PDF 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.com/pify?keyword=corpse+bride+piano+solo+pdf In PDF document text
    • http://files.columbianacoc.com/uploads/1/3/2/6/132695354/10e213c.pdfIn PDF document text
    • http://files.championshipvinylstl.com/uploads/1/3/0/8/130874254/finudipo-nemorilomaje.pdfIn PDF document text
    • http://files.lairdnorton.org/uploads/1/3/0/9/130969598/02ead7e.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/1/0431/2635/8173/files/68220355090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5085/files/bemunavenogoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/60930721278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/mozijoladifosajasemut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/vakademeloxejim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4386/3198/files/saxon_math_algebra_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/acid_base_and_salt_class_10_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0906/3582/files/kemubopif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/identifikasi_batuan_sedimen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/25185885588.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_off00007c18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C18 5080 bytes
SHA-256: 52558179eeb78f8222954fe0dcfd115bb16f5921bb2bfb9c96cfee32fad1247a
font_01_sfnt_off00008d5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D5B 10092 bytes
SHA-256: 8d43bbd8de7101b6f5bbc00e28726e3f3e1eabd6f58124082b2c50e3c6aa84f7

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