Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc2dadcb20102b7…

MALICIOUS

PDF

67.7 KB Created: 2020-08-02 06:16:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d1470587e9645da99161dbb17316ad7 SHA-1: d35402c47b13daac5548fb4d65fbc312da63086c SHA-256: 7cc2dadcb20102b7eaf99f27b296bc60fa4f6f639a249c4635e0b85e516f415c
194 Risk Score

Malware Insights

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

The PDF document contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=emerson+polling+bias'. This suggests the document is part of a link farm or phishing campaign designed to redirect users to malicious sites. The ML classifier also strongly indicated 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=emerson+polling+bias In PDF document text
    • http://files.karlabeck.com/uploads/1/3/0/8/130813546/3a5b9855e.pdfIn PDF document text
    • http://files.rachellynnspeaks.com/uploads/1/3/0/8/130814284/dolidirifewokaxeb.pdfIn PDF document text
    • http://files.audacitycoffeeroasters.com/uploads/1/3/0/9/130969761/numajanuwevus_bibanuwibob_fazapebesoruku_boxagiwi.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/1/0437/6231/9518/files/kukuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7064/4631/files/36675766011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4016/7320/files/luboxipowosivesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6055/7984/files/9617595540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5785/4102/files/95218621906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9550/4536/files/lunewofimapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6385/2712/files/lujanusutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3141/9287/files/84211794827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/xekoril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0334/7098/files/gifoliwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/54221505807.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_off0000c7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7F2 5236 bytes
SHA-256: b986d091e2e73f5f8b8216d3f3d5d5dfa616967f281b42d55fc4df8aaa5dbdf3
font_01_sfnt_off0000d9a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A6 11940 bytes
SHA-256: 01a6f7b31e758823698ed1fe54f9e87d53910a03b9a3fd8aa3826f5acfc0eba3

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