Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f5be08480a1f8fe…

MALICIOUS

PDF

34.0 KB Created: 2020-08-25 16:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 033dde234805a0d9ca86268bb1e455f5 SHA-1: a69b21d336577d849b9d03fdbf7a22808a69ab9a SHA-256: 0f5be08480a1f8fe0931c29c0cbf4a714ed35a5d6197761285eac30b36880936
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL is https://ttraff.ru/pify?keyword=expanding+brackets+with+surds+worksheet, which is flagged as malicious. This suggests the document is part of a link farm or phishing campaign designed to redirect users to malicious content. No scripts were extracted, but the presence of numerous links and the malicious redirector strongly indicate a phishing or malicious 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.ru/pify?keyword=expanding+brackets+with+surds+worksheet In PDF document text
    • http://files.pentonparkbrewery.com/uploads/1/3/1/6/131606807/890001bbe2.pdfIn PDF document text
    • http://files.fryeburgwaterdistrict.org/uploads/1/3/2/7/132741149/3455089.pdfIn PDF document text
    • http://files.gmnite.com/uploads/1/3/0/7/130740210/8463483.pdfIn PDF document text
    • http://files.queencityproam.com/uploads/1/3/1/0/131070920/3392669.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/1/0448/9340/5339/files/learn_arabic_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/26864629478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1954/3199/files/android_16_dokkan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8729/7696/files/9493094050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/90435222305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5181/8903/files/role_of_commercial_banks_in_economic_development_of_pakistan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5302/1334/files/guvufimajoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4333/files/audacity_plugins_autotune_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2600/5406/files/workplace_harassment_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3382/9277/files/wiveme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/minirefotapobizezuloxot.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_off00004646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4646 5624 bytes
SHA-256: bfc73600bf28bcf6058bec7ebd05e6587ac2c75969b2f89a3c730c08635f6d61
font_01_sfnt_off0000596f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x596F 9912 bytes
SHA-256: 3a4da1a42ac939c42d8cf5c94c4cbe9fc0cf08298348f04b0872063f36f432d2

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