Malicious PDF — malware analysis report

Static analysis result for SHA-256 cff27fb14ec8a2a6…

MALICIOUS

PDF

40.8 KB Created: 2020-07-31 21:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 874d69eabd3ebf9ee50ea96e34da243f SHA-1: 5c9406d785c5feaef5f4a05728d609e2202876f1 SHA-256: cff27fb14ec8a2a68ae93130e6aa957ad11f509f6e9fabc86df51395e0178a3b
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=maverick+88+walmart, which is flagged as malicious. This suggests the document is part of a link farm or SEO poisoning campaign designed to redirect users to malicious sites.

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=maverick+88+walmart In PDF document text
    • http://files.a2acollaborative.org/uploads/1/3/0/7/130739780/genulobov.pdfIn PDF document text
    • http://files.fresnonutritionsolutions.com/uploads/1/3/2/6/132683111/9806049.pdfIn PDF document text
    • http://files.joanadler.com/uploads/1/3/1/8/131856391/6105094.pdfIn PDF document text
    • http://files.mertech.co.uk/uploads/1/3/1/1/131164129/tusix.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/1/0428/3714/7811/files/jajukibas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/sitivuzaginofika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6980/8550/files/53880336861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2410/5121/files/11998901209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/vovujaranediboxilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/tefazabagunax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1035/7405/files/77013276787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5431/8239/files/kagijuvexafonikiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8886/1602/files/mosubefunobaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tifomev.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_off0000630b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630B 5180 bytes
SHA-256: 8554980e281314f8eabb5c94299bebf8bf29c9a8b1498563651acb3152568f2c
font_01_sfnt_off000074bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BD 10020 bytes
SHA-256: 38b7b5a40c032441965541a2c968eae43b1971820dbd850a11b6e4ceb35501d8

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