Malicious PDF — malware analysis report

Static analysis result for SHA-256 6396ca306c3ef918…

MALICIOUS

PDF

46.2 KB Created: 2020-07-31 10:18:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 983baa1c388fe24be1a0d77e063a8241 SHA-1: 602543b6b22fd8fc14c84c9d71c5252dba56d23d SHA-256: 6396ca306c3ef9180fedea786f22940fefb4910e555ecdf98a5ca59568765057
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'Apa citation book chapter pdf'. The presence of many external PDF links, including benign ones on Shopify, indicates a link farm strategy. The ML classifier strongly indicates maliciousness.

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=apa+citation+book+chapter+pdf In PDF document text
    • http://files.murthlenesampson.org/uploads/1/3/2/6/132681969/c751f2061ac1800.pdfIn PDF document text
    • http://files.3d-printer.com/uploads/1/3/1/4/131409709/navenorimoruboz.pdfIn PDF document text
    • http://files.babcockranchdragonboatfestival.com/uploads/1/3/0/7/130774990/411969.pdfIn PDF document text
    • http://files.homeartscontentandcopywriting.com/uploads/1/3/1/8/131858540/vebibuwugodow.pdfIn PDF document text
    • http://files.morpethpantomimesociety.com/uploads/1/3/0/7/130739155/sosemenaxebupi.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/1/0440/7325/5062/files/lizolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/41577591477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/69845186450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4434/6792/files/59688707713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/62634078635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5483/9461/files/wiraxis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zotogobujadafozafinuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/1603106039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7344/5792/files/70417193487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/zakegilafodinet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2166/2365/files/25944702939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/93307633637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1464/2070/files/vomepipel.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 4

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_off000077c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C1 5012 bytes
SHA-256: 5bb15409683e8dc2ee98656a86c2310d77ae1185b50d5bed7ff268531fd37cd4
font_01_sfnt_off000088ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88AD 10112 bytes
SHA-256: 65b8667d55212b46411f6ee132a1c13c4ddb3748eb4c6b540b308580c0432d42

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