Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7e7866ee20bcd4d…

MALICIOUS

PDF

45.2 KB Created: 2020-08-04 10:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: faf25dd48264d90cebec8622d5f19ca6 SHA-1: b8e64ded3eecb2d10c70cc161e82d3f619229fd4 SHA-256: b7e7866ee20bcd4dc7827907a76c780f67a11921fba7b5747297590214942299
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. This link, 'https://ttraff.cc/pify?keyword=maritime+abbreviations+dictionary+pdf', is designed to lure users to malicious infrastructure. The file also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO poisoning or traffic redirection. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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=maritime+abbreviations+dictionary+pdf In PDF document text
    • http://files.robertnoreika.com/uploads/1/3/0/8/130874408/cfa2ee2433.pdfIn PDF document text
    • http://files.amyhandelsman.com/uploads/1/3/0/7/130740213/736043.pdfIn PDF document text
    • http://files.sallysvalleykennels.com/uploads/1/3/2/6/132681316/jokupuw_besikevure_mejifitaxizikaj_zebisom.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/1/0428/9835/8432/files/37144816260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/bisoxozefiwozipajejadar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/85912423103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/89248188439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3253/files/bitukisamogigix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/12240278691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/java_sorted_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6628/5480/files/kakodadutugamavap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/riwuluzumuzase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1264/3223/files/dutch_curse_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/vunigisoxebaganejotuxusa.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 5

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_off000067db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67DB 5576 bytes
SHA-256: 8bd6aacc6a5940ee43cd4a87d86d0ee1e8ea8a6454e77561c7f80cdc1dc9d382
font_01_sfnt_off00007ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD0 14624 bytes
SHA-256: 9c4651cd125f4bd3dd1bd27c5964233e600a87b0f40fd5f2112ab0fc6c142415

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