Malicious PDF — malware analysis report

Static analysis result for SHA-256 917b11276b57add5…

MALICIOUS

PDF

37.3 KB Created: 2020-08-11 06:51:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6d891a1046c5215d26512fab1d2ad58 SHA-1: 7a8757140fd042007dbd8e7b0adad4090d9caeb4 SHA-256: 917b11276b57add5dc7878158b922e001066e15be6a83a22f4744f60dfd373ab
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as search results for a book, leading to a redirector. The primary malicious link is https://ttraff.com/pify?keyword=autobiography+of+a+yogi+pdf+in+tamil, which likely serves as a lure to a malicious site. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a content-based redirection attack.

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=autobiography+of+a+yogi+pdf+in+tamil In PDF document text
    • http://files.kerryhawkinsphotography.com/uploads/1/3/1/4/131437685/rasopus.pdfIn PDF document text
    • http://files.windofgreatspirithealing.com/uploads/1/3/1/4/131437967/polokada-wikiwiwezi-zazawar-wurug.pdfIn PDF document text
    • http://files.webchristchurch.com/uploads/1/3/0/7/130776327/xoxuvuwutosopuruni.pdfIn PDF document text
    • http://gomotuxo.the-hafizova-hive.com/uploads/1/3/2/6/132681746/29a9d.pdfIn PDF document text
    • http://files.markingsgallery.com/uploads/1/3/1/3/131383661/gukurowime.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/1/0432/0441/1556/files/99669439992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/97930194224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2630/9535/files/zojedimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4311/0564/files/mekijinisuxofuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/arw_file_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/muxomebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6472/1562/files/isometric_knee_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5189/0341/files/49971642078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/27416735325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/learning_how_to_learn_oakley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/58769564348.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 8

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_off0000530f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x530F 5508 bytes
SHA-256: f5b1dc991df65bc94a1c0b128183a90413e2abb1c4843773a004a28715a8ac1a
font_01_sfnt_off000065a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A2 10276 bytes
SHA-256: adb62276c577f21d299c60517c751c2fb09f88a407b99fd62cc1edf995daf66d

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