Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3cb03c468cbf45…

MALICIOUS

PDF

41.1 KB Created: 2020-08-25 00:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69bd5f81e2209010bde17a82b9f8ca3c SHA-1: 8e21a6e4a23b94119cef2fec24df7432524dbaf3 SHA-256: fa3cb03c468cbf457891a6fc2d38b1d8fb3b383a5986adb4c9447cb14dc5c81c
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically `https://ttraff.com/pify?keyword=choir+sheet+music+satb`. This indicates a phishing or malware distribution attempt, disguised with text related to choir music. The ML classifier strongly supports the malicious verdict.

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=choir+sheet+music+satb In PDF document text
    • http://wepusegi.sp-arms.com/uploads/1/3/1/4/131453718/jefojowatinizi_vojifizas_zizawofelilebad.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/1/0464/6495/8616/files/xezopij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3974/0319/files/biochemistry_lehninger_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/camino_de_santiago_frances_en_bici.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4738/6262/files/miguporuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5837/8392/files/barbie_girl_kelly_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4301/2256/files/50766082390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/gedevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/jabokerinodopitap.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_off00006359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6359 5052 bytes
SHA-256: 9ae1ee3b4dead8812914cc3bc4ba3a185c8b8997b1da33a3e0b18ed91bf7532f
font_01_sfnt_off0000745f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745F 10468 bytes
SHA-256: 3a350bfead1e03ed7993d55a52401100f768c19958b0dcaec728294108d79ee3

Open this report in the interactive analyzer, or submit your own file for analysis.