Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c7269afe114c4f7…

MALICIOUS

PDF

42.3 KB Created: 2020-08-10 08:59:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9a3a16864b63b41e4d89fea35a63fc5 SHA-1: 7ac468b5f2b4f0fa3d850f0e8862a6dc7171cc22 SHA-256: 0c7269afe114c4f74937497884f3618d1e7ca64a5a7af156c1e0df7ce25ba5fe
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and heuristics indicate a lure related to 'interview questions on cloud computing pdf', suggesting a phishing or credential harvesting attempt. The presence of numerous external links, including benign Shopify links and unknown domains, points to a link farm strategy to obscure the ultimate destination.

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=interview+questions+on+cloud+computing+pdf In PDF document text
    • http://jaradazig.tiffanylynnengler.com/uploads/1/3/1/3/131384635/dac842.pdfIn PDF document text
    • http://files.chatswooddensitometry.com.au/uploads/1/3/0/9/130969966/5792248.pdfIn PDF document text
    • http://bogilowi.career-readiness.com/uploads/1/3/1/4/131437423/bifeborebuwazin_zugimowinagi.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/1/0431/6043/6887/files/99996512338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2442/4853/files/13278449344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/5856/6044/files/arrows_structures_and_functors_the_categorical_imperative.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/small_scale_broiler_production.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/free_piano_lessons_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/47559814868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5993/files/les_types_de_centrales_lectriques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/81791695986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2401/2696/files/sodedesidiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8402/1921/files/500_academic_word_list.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 4

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_off000064ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CA 5480 bytes
SHA-256: 9ce3b33ec611db18813b0a4a7229bc2b469dca982e7f72aae03a0cf76b6e0eb2
font_01_sfnt_off00007771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7771 10896 bytes
SHA-256: 58b97c034027ee158a2751fdb4497ef7957456fca8f227746f1f246133811bbc

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