Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e1be3c21487e492…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 09:09:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 111c9c77e07bf0bd5c853f019ddfce09 SHA-1: 8ccab19c9c5f5e1862170c5461f6361e111596e4 SHA-256: 9e1be3c21487e4927365285c9bfe5991313ae08befb4bbcae791e697e6c0eaa5
194 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many pointing to a link farm hosted on Shopify, and one critical link to a known malicious redirector. The document body, though partially corrupted, contains text related to 'comparison between android and ios pdf' and the malicious redirector URL, suggesting a lure to a malicious site. The ML classifier 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.cc/pify?keyword=comparison+between+android+and+ios+pdf In PDF document text
    • http://zefaf.fsrental.com/uploads/1/3/1/6/131637254/galokok-felime-tikojojakuf-refed.pdfIn PDF document text
    • http://files.hindidox.com/uploads/1/3/1/0/131070911/7667a.pdfIn PDF document text
    • http://files.teensfirst.org/uploads/1/3/0/7/130739789/8421338.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/1/0432/6840/7464/files/79687397812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/70293521796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/bhagavad_gita_in_telugu_with_meaning_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/14393._0._161119-_1705._rs1_refresh_server_eval_x64fre_en-_us.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/dajarupixeladomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/agentur_fr_arbeit_antrag_arbeitslosengeld_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2778/3080/files/91087414189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31492874922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2440/6933/files/expos_sur_le_scepticisme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2679/0053/files/cambridge_igcse_geography_workbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5178/5109/files/43041329298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/uss_nimitz_arma_3.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_off0000655e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655E 5292 bytes
SHA-256: c912bccedce07e556230c45b9921395b0e08abf5497dda2a79f5b74f76479f03
font_01_sfnt_off0000774a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774A 10616 bytes
SHA-256: 6a4d02f68104aa14f3034027cb1d402327cd8969b09de747e1203a26864a8787

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