Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0bd346cd919be15…

MALICIOUS

PDF

32.7 KB Created: 2020-08-04 09:35:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce5ec9a0367f81a3a719310248ec9225 SHA-1: 269f3aaa4a2da8528aea317f5591453621adc31a SHA-256: f0bd346cd919be15599b901165c63b0f6bc1a5251fb47f490301d6888382c417
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as free downloads, redirecting users to malicious infrastructure at 'https://ttraff.cc/pify?keyword=ayurveda+books+pdf+in+bengali'. This tactic is commonly used for phishing or distributing further malware. The ML classifier strongly indicated maliciousness, and the PDF structure supports a link-based attack pattern.

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.cc/pify?keyword=ayurveda+books+pdf+in+bengali In PDF document text
    • http://files.sleukrithmotionpicture.com/uploads/1/3/1/4/131437194/dukijosudep_jadirojofot.pdfIn PDF document text
    • http://files.conspiritu.org/uploads/1/3/0/8/130813888/c87404f8fc26a03.pdfIn PDF document text
    • http://files.gargiulocaterers.com/uploads/1/3/0/8/130813317/tavujaxevux.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/1/0437/3181/2504/files/47515596038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/tuesday_with_morrie_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0270/7616/files/jupoxulufepapufoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6916/9045/files/nifawudiwatarunokob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/nimarazasifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1783/7480/files/84912344192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/81982251066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/14726301601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/dekumun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4653/5322/files/47068134572.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_off00004288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4288 5564 bytes
SHA-256: 4a9f5336e5eb75799e0c6a3c6c15165d8e22fa2397b79b100ca7a1fe11ade35c
font_01_sfnt_off0000559a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x559A 9620 bytes
SHA-256: 78a7d3e8fd08914c868f30465fd8255d10382a8f40f8b7725b35437554642b37

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