Malicious PDF — malware analysis report

Static analysis result for SHA-256 716ad0c9b44e98e8…

MALICIOUS

PDF

47.4 KB Created: 2020-08-09 20:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8c46921700bbec3cec96a3df71d4858 SHA-1: 30009b5e977750301944de607ff2d116174a99fd SHA-256: 716ad0c9b44e98e8c84f44a4a188ddae1f541897c9c33bbed55a9b53af14f8c1
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL designed to appear as a passport application form. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM confirm the presence of malicious redirectors and a link farm, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.

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=passport+application+form+pdf+editable In PDF document text
    • http://files.sheevzphotography.com/uploads/1/3/1/4/131453406/81c93b8e84df634.pdfIn PDF document text
    • http://files.scottyppart.com/uploads/1/3/0/7/130740049/39c38bf87.pdfIn PDF document text
    • http://piwewi.keithdeininger.com/uploads/1/3/1/0/131070722/5367980.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/1/0430/6426/2818/files/25627462887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/scratching_the_surface_reading_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/29728192625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/lincoln_arc_welder_225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1935/4791/files/advantages_and_disadvantages_of_shielded_metal_arc_welding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0433/6027/files/ruxosiwatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/65859782240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/go_away_big_green_monster_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7645/files/jogexebemativunafufevet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1203/7540/files/29506139066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/fuwoposef.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_off000079cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79CC 5444 bytes
SHA-256: 66a5e285ed302591dcb638f4eb4dfc814a54e16b544fa8d8e8ce227242eac956
font_01_sfnt_off00008c31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C31 10644 bytes
SHA-256: 8647163b79e0aa71c7aeead9853644b0c6f62cdacaf68fd03900e899c0eca4b3

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