Malicious PDF — malware analysis report

Static analysis result for SHA-256 03df7e24ddafe278…

MALICIOUS

PDF

55.3 KB Created: 2020-08-08 00:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72d8296d8c888d1d22b7067456526bdd SHA-1: 98312ba5fbda7a6b6077ea749d43483748c3f39a SHA-256: 03df7e24ddafe2780cf6819a4a2450f9fe956d0f081cf2f5e72e7234a3d04586
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The document body explicitly contains a URL disguised as a free download, which points to a known malicious redirector. This suggests the primary goal is to trick users into clicking malicious links, likely leading to further malware downloads or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bailey+and+love+surgery+24th+edition+pdf+free+download In PDF document text
    • http://files.biocyclic-network.net/uploads/1/3/2/8/132814977/4c2c493e8a37.pdfIn PDF document text
    • http://files.youthadvocatesforanimalrights.org/uploads/1/3/1/4/131483069/divakazalapemu-mikotigimukem.pdfIn PDF document text
    • http://files.asubmersible.net/uploads/1/3/0/8/130874046/4d0a7d6b8a295bd.pdfIn PDF document text
    • http://files.deityandhumanity.com/uploads/1/3/1/6/131637073/gibape.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/1/0431/7272/4892/files/asl_alphabet_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/xetupokumelepirorutot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/dukexusebeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9920/8346/files/paulo_coelho_el_alquimista.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/estus_shard_locations_ds2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/xetep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6563/9069/files/zivurat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/33366507938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1963/1765/files/20531306971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9237/5704/files/19708266541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8275/9836/files/zojegexipujele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/shoni_the_shilent_vanilla.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 4

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_off000098e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E5 5828 bytes
SHA-256: 1cdbe5c1369a6ba6f9f40e50747ca886250e138bdd29be640d93a0e20c37b5d5
font_01_sfnt_off0000acdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACDC 10136 bytes
SHA-256: b604890e206234a63b46601b9244b82ca97551ab306ad8f76ce508bec3246761

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