Malicious PDF — malware analysis report

Static analysis result for SHA-256 7922dc78907c2c57…

MALICIOUS

PDF

57.8 KB Created: 2020-08-19 10:45:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e8e4b50373618e4ee2a51d35e59e3b5 SHA-1: d0984d838bb9e78b6fd259179c0a8785a99429f0 SHA-256: 7922dc78907c2c5798d8e68e61210ab1dae189b1986a17ba96dacd3ae3812646
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.com/pify?keyword=article+format+spm+2018'. This indicates a phishing or scam attempt, likely to redirect users to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the document body contains a URL that matches the redirector.

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=article+format+spm+2018 In PDF document text
    • http://viben.lindsayrandall.com/uploads/1/3/2/6/132682076/fabaxonuwus.pdfIn PDF document text
    • http://files.simplyburtons.com/uploads/1/3/0/8/130873820/5861548.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/1/0434/7245/3797/files/82533619137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4814/0949/files/24413841528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/23888945327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6164/0358/files/93406668117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/designing_data_intensive_applications_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2119/files/legagexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9079/5941/files/dilobowifuxubafunuxonetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/sidonirugenifuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2030/3011/files/polas.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_off0000a4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4AC 5672 bytes
SHA-256: a0c180722d541e6b998d4b36272a3ab5f84852fdc1ff2e79d50fe91abfeb8c5b
font_01_sfnt_off0000b7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7DF 10120 bytes
SHA-256: e2cbd7e548c3ad2d73559e2059feb9f6c898b88b92ef7f9155da715011973176

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