Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e410e3b094eb0ba…

MALICIOUS

PDF

41.0 KB Created: 2020-08-20 01:53:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec690d62371818456385c00ece446535 SHA-1: e7bf1633a3c2760d1f5450784ec1c6c9c4b9ab22 SHA-256: 0e410e3b094eb0ba6122aff41218dedcd48f918817bf4cede3f60365b103e6af
194 Risk Score

Malware Insights

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

The PDF contains a deceptive link presented as "Coursera courses answers" that redirects to a malicious URL. This tactic is commonly used in phishing campaigns to trick users into visiting potentially harmful websites. The presence of numerous external links, many pointing to Shopify domains, suggests an attempt to create a link farm for SEO manipulation or to host further malicious content.

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=coursera+courses+answers In PDF document text
    • http://gogoxe.thesolarlesotho.com/uploads/1/3/1/6/131606407/4154826.pdfIn PDF document text
    • http://files.tacticalinsider.com/uploads/1/3/1/3/131382673/a2116e.pdfIn PDF document text
    • http://files.samniquekahalsey.com/uploads/1/3/0/9/130969448/ae40cffb.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/1/0431/1633/1172/files/occupational_safety_and_health_standards_for_the_construction_industry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8860/8418/files/subjunctive_form_of_hablar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1454/4808/files/85422988042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/xozorunanaruju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2358/9788/files/alphabet_chart_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5251/2918/files/wav_to_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/lorojivegovimedoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5778/2690/files/10509600048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9114/9214/files/29941882980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1028/5990/files/animal_adaptations_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3041/files/93849120799.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_off00006403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6403 4760 bytes
SHA-256: 50d0db957562691e8bab749d724a7482abc579baa3655f817114a63b93c68b40
font_01_sfnt_off00007451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7451 10432 bytes
SHA-256: 891b18d805780e91a5e29b6a77c8b76a23a08d77cb807b241e1c2d0555652ac6

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