Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8b6d62e926a4e20…

MALICIOUS

PDF

42.1 KB Created: 2020-08-28 03:45:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef0ccf34ff1f86b8570823c2c9deff1b SHA-1: a6b3fc5966165d9cb52448bf1045105ea0355c42 SHA-256: f8b6d62e926a4e206ca388c7b8d40f3849d2e8dfc954a9883c5b1cb9b158ba61
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The ML classifier strongly indicated maliciousness. The document appears to be a link farm, with many embedded URLs pointing to Shopify, likely to obscure the malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=3+bedroom+3.5+bath+ranch+house+plans, which is designed to lure users into clicking by mentioning house plans.

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.cc/pify?keyword=3+bedroom+3.5+bath+ranch+house+plans In PDF document text
    • http://files.jotsfromjill.com/uploads/1/3/0/8/130813765/waxemoxetitav.pdfIn PDF document text
    • http://files.amandagrahamlpc.com/uploads/1/3/1/3/131397987/6428131.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/1/0431/4392/1820/files/ugly_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8685/5840/files/composition_of_earth_s_atmosphere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7063/5680/files/29787150557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/robumawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8203/1007/files/12788802646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1002/2814/files/59473400768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7253/files/66582245892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5499/7160/files/mobile_legends_diamond_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5865/7430/files/download_surat_ar_rahman_latin_dan_terjemahannya.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 3

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_off000064cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CF 5680 bytes
SHA-256: 11886fcc24be49ff435e11cae39b52aa2fcdbc40d25262989c4deb7131460513
font_01_sfnt_off000077e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E4 10536 bytes
SHA-256: 3b052e1977defcf6377690ff4a48fec72544a3b0d23aa6e6c1553708a9608bd7

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