Malicious PDF — malware analysis report

Static analysis result for SHA-256 e725b53b4ccaee20…

MALICIOUS

PDF

33.3 KB Created: 2020-08-13 21:28:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d93f8bb9a412e523952075cf860a5bbc SHA-1: 5ac8019948276ab622fbaaa3d07f16fbcd883bf5 SHA-256: e725b53b4ccaee20dde32fa8f999142127ac5e549f703dd68bb5ab3ea8626f0f
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical URL, https://ttraff.com/pify?keyword=chupke+se+koi+aayega+song+free, is identified as a known malicious redirector. The presence of a large number of links, many hosted on cdn.shopify.com, suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML classifier also strongly indicated maliciousness.

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=chupke+se+koi+aayega+song+free In PDF document text
    • http://files.bhpslibrary.com/uploads/1/3/1/4/131453870/2acc83.pdfIn PDF document text
    • http://diwukoxak.myenchantedlocket.com/uploads/1/3/1/8/131856190/puterep.pdfIn PDF document text
    • http://files.joysurgical.com/uploads/1/3/0/7/130775053/2181693.pdfIn PDF document text
    • http://files.funom.org/uploads/1/3/1/3/131384098/kovetoganikujav.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/1/0434/7399/3890/files/maponivegokogiwivudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2067/1386/files/junamigeravolisok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/96757587143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0383/7591/files/12323136284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7967/9646/files/reluwetiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2642/3701/files/81986667418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7717/9294/files/tipos_de_temperamentos_y_sus_caracteristicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/caderno_de_desenho_para_colorir_em.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2426/8968/files/din_en_iso_13485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/98294659634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/jipabumesojurizow.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 6

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_off0000442b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x442B 5204 bytes
SHA-256: ebb35d46944d3c3bc1974696df05fd1e5c2225bfbeda614f95f026ccb8dbf9f7
font_01_sfnt_off000055e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55E2 10252 bytes
SHA-256: 3349abbf1b0bf7f179ae3ed1efd9949911153315810306321189a3034e334094

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