Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6623c11bf517ba5…

MALICIOUS

PDF

44.2 KB Created: 2020-08-08 04:47:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a539001bd1ce1a49e8d676fbada0543 SHA-1: c8b201588ec45959549e5a4cd21a9eea454315bf SHA-256: f6623c11bf517ba5517b87d582088993fcf641ef7a01714643455950430cab56
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a lure related to a 'Canada study visa form' and embeds multiple external links. One of these links, `https://ttraff.com/pify?keyword=canada+study+visa+form+pdf`, is identified as a malicious redirector. The presence of a link farm and the invoice/payment lure heuristic suggest a phishing or scam attempt designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=canada+study+visa+form+pdf In PDF document text
    • http://files.twobeesapiary.com/uploads/1/3/0/7/130775131/6dd7dc391e.pdfIn PDF document text
    • http://files.bessastadir.is/uploads/1/3/1/6/131637043/9954350.pdfIn PDF document text
    • http://files.hooperphotographic.com/uploads/1/3/1/3/131381003/9feda.pdfIn PDF document text
    • http://files.adrianbc.org/uploads/1/3/1/8/131856129/losepegamusemigile.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/1/0431/9143/5422/files/66275259531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/jisabenus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3358/2998/files/tejiralunufibetodusiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/rorafazireso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6975/1967/files/cantico_dos_canticos_marcelo_almeida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/88845369426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/romota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3482/files/10929308711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5672/6165/files/jinaxijunokubum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/wabiriji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3313/2184/files/how_to_move_villagers_in_minecraft.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 3

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_off00006fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCB 5224 bytes
SHA-256: 7d9ac68b4d0efaa10a2ba675a9ea29653bbf650c71cc33828f1c7e7f931233b4
font_01_sfnt_off00008186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8186 10084 bytes
SHA-256: 352266f4319f8c773b6034bc174bee372f35a3a018d32993dfda3db49dd51737

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