Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7d02d88c18e0521…

MALICIOUS

PDF

42.2 KB Created: 2020-08-03 14:09:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 219bcdbb240517ee7ed4360da1962e5c SHA-1: 6ab73bf2f0e38ea01fb6776aa914f00151fb02a3 SHA-256: f7d02d88c18e05215a351f074997ef371224fffb762587e8349a55040fa4d8d1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The primary malicious URL is https://ttraff.cc/pify?keyword=cbse+class+11+accountancy+ncert+pdf, which likely leads to further malicious content. The document body, though heavily obfuscated, contains references to educational material, suggesting a lure to entice users to click the malicious link. The presence of numerous links to Shopify-hosted PDFs, while many are benign, contributes to a link farm used to obscure the malicious redirector.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cbse+class+11+accountancy+ncert+pdf In PDF document text
    • http://files.fritzassociates.com/uploads/1/3/1/6/131636941/rodabo.pdfIn PDF document text
    • http://files.guayamarestaurantsupplies.org/uploads/1/3/2/6/132695554/darumavamodede.pdfIn PDF document text
    • http://files.cbdfarmacyonline.com/uploads/1/3/1/8/131858287/7953328.pdfIn PDF document text
    • http://files.lakesuperiormqg.com/uploads/1/3/1/6/131606331/votatezavomos.pdfIn PDF document text
    • http://files.jessicaleighwellbeing.com/uploads/1/3/0/9/130969446/joniwaturagivifopasa.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/1/0431/6063/3493/files/97221329873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3989/0327/files/95861938270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/68128044199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/18523028324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8275/9836/files/xawufido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2712/8735/files/vizirebelujuzaken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/likibipebakaxirixukevizoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2800/4507/files/65441755621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/54522220540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/10984660604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61403973964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9051/8940/files/dopurologilanufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2443/9704/files/98168776373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/nojunilokadevevoxer.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6745 5348 bytes
SHA-256: 31cf06ef9a7afd9ce5696701621e1f255223745c507f2a8c6a039cb3376bb04a
font_01_sfnt_off00007988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7988 10020 bytes
SHA-256: 5609b47e975d2bbb8e8fa90fca4cf39c3932c14d51a654f4ecd237cfee72fab9