Malicious PDF — malware analysis report

Static analysis result for SHA-256 a50275adc3628140…

MALICIOUS

PDF

46.0 KB Created: 2020-08-01 03:35:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40cdab166e903e9b5d83ad6b4fd0058a SHA-1: d9716703854d938a42a621a421886f0f0a0317bb SHA-256: a50275adc362814073c0b0d94e13428893fdaf3163a7bfb4592b08ff07def284
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, including a critical redirector link to 'https://ttraff.com/pify?keyword=the+respect+principle+pdf+free'. This indicates a social engineering lure, likely aiming to direct users to malicious content or phishing pages. The document body, though heavily obfuscated, contains the same redirector URL and other benign-looking Shopify links, suggesting a link farm or SEO poisoning tactic to attract victims. No scripts were extracted, but the primary malicious activity is the redirection via embedded URLs.

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=the+respect+principle+pdf+free In PDF document text
    • http://files.joshuaspringsschools.com/uploads/1/3/1/4/131483108/bolemijakuwobok.pdfIn PDF document text
    • http://files.sarabycura.com/uploads/1/3/1/4/131407887/212c9665.pdfIn PDF document text
    • http://files.thecandlewasters.com/uploads/1/3/1/4/131437312/nufidajonijufi.pdfIn PDF document text
    • http://files.thewaveindustries.com/uploads/1/3/1/4/131413837/a1b902b2.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/1/0429/3374/7878/files/73057041585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5355/5624/files/suxolurojalevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/54150461009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/wexomojipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4086/4421/files/64398556258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6517/1354/files/95606395155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/gizukuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1312/7844/files/lenewaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/18679695660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3263/0680/files/pufisalidaxobogomemabeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/pijusafipowarosotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0813/0213/files/18436636566.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_off0000772b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x772B 4984 bytes
SHA-256: 731bc141f81fd509fe3b066ce8e9fb86636f52f8ad382b40009449132d2b970e
font_01_sfnt_off0000881b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881B 10416 bytes
SHA-256: e2771086acd27651598a4f3d746809f283d7245b29e178ebc98af76f26524c7c

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