Malicious PDF — malware analysis report

Static analysis result for SHA-256 65cf061c03729293…

MALICIOUS

PDF

40.8 KB Created: 2020-08-20 08:46:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cb48a57ce06bba4181a314a85aa0b046 SHA-1: c59d25b2ad258f6460575f3370a2a64424d1c201 SHA-256: 65cf061c0372929303cd299cc6d497adb231e0be9417eba1cee757cbf5b7e11c
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The primary malicious URL identified is https://ttraff.com/pify?keyword=free+father+christmas+reply+letter+template, which is linked to malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious content, likely for credential harvesting or malware delivery.

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=free+father+christmas+reply+letter+template In PDF document text
    • http://files.saintlawrencewr.org/uploads/1/3/0/7/130739570/zudire.pdfIn PDF document text
    • http://files.dresdenavenue.com/uploads/1/3/0/7/130739654/ruzupo-detil.pdfIn PDF document text
    • http://gepuzi.studentfinanceboard.com/uploads/1/3/1/4/131407945/kefenoliv-fuminel-lamawefapego-daxadatepafo.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/1/0437/3771/0744/files/23355229864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3624/4118/files/math_aids_advanced_order_of_operations_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7282/files/susipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9699/0105/files/3252751864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7593/5135/files/tekalafirumumevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4648/3606/files/bixaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9028/8541/files/cheran_pandiyan_padam_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7962/1026/files/xejepogumubuluvigesuvove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6248/5407/files/certified_analytics_professional_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/zizutux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/tuxeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/xarobero.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_off00006171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6171 5312 bytes
SHA-256: 52bc7ea9bc6dd35f1a00a14196b77d55db3daefbf3de3e691956925d88abd754
font_01_sfnt_off0000736b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x736B 10140 bytes
SHA-256: 3dc15aace4d4368b47552fc96ae831616b09846be622988152eaf73ab0b584f9

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