Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4d68e6c07450144…

MALICIOUS

PDF

51.6 KB Created: 2020-08-03 13:01:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a69c5cf9b6a02bc19da6d4bfc0bcd093 SHA-1: 08e9b0ea111a024b223743a5344d4c9801b99f27 SHA-256: a4d68e6c07450144b6502289c9f77847bd9287310ae2663f7c0d638dcc8d4174
194 Risk Score

Malware Insights

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

This PDF document contains a mass of external links, many of which point to potentially malicious redirectors or content farms. The primary malicious link identified is https://ttraff.cc/pify?keyword=antony+and+cleopatra+pdf+modern+english, which is flagged as a known malicious redirector. The document's structure and the high number of embedded links suggest a tactic to distribute malicious content or phish for information through a link farm.

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=antony+and+cleopatra+pdf+modern+english In PDF document text
    • http://files.tatianaklacsmann.com/uploads/1/3/1/3/131384573/fukelatofog.pdfIn PDF document text
    • http://files.learningmn.org/uploads/1/3/0/7/130738875/milegubin_risuxadatope_dixutitu_mifezibetako.pdfIn PDF document text
    • http://files.maddiehulsman.com/uploads/1/3/2/6/132681502/nituxefuku.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/1/0437/5468/4565/files/8515370842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/46065331844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/mimibad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/zopitenetam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0364/9953/files/white_mage_barding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0099/files/lubigemajubab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7442/8827/files/gojadanojomawokosupexip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/tuluraviwisaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6815/2216/files/jutuwamexutewamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3704/7449/files/boolean_search_strings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/piwovi.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 3

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_off0000892a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892A 5660 bytes
SHA-256: d299b877c637b88eac5b23f645116bdaed6ae7c36f88b2141a39b39765f60ba9
font_01_sfnt_off00009c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C52 11308 bytes
SHA-256: 104690f832fd50ba5a4e06db02f7718b931d638f49d92a71ea4e61445a1064b4

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