Malicious PDF — malware analysis report

Static analysis result for SHA-256 09cad7abc847de78…

MALICIOUS

PDF

45.8 KB Created: 2020-08-13 23:04:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63cbe1930d4213ec5c09aac7769471ec SHA-1: 99669c5a435245a9eb3c03ddbf2ad0a23de233a6 SHA-256: 09cad7abc847de78ab27cb9b4d7d66c522816709b91d6dc3be55e142fca8c4a2
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector infrastructure associated with SEO link farms and malicious redirects. The document body, though partially corrupted, suggests a lure related to 'conditional clause definition and examples pdf'. The presence of a malicious redirector link indicates an attempt to lead the user to a malicious site, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/wb?keyword=conditional%20clause%20definition%20and%20examples%20pdf In PDF document text
    • http://bikefatep.nfjoyfullibrary.org/uploads/1/3/2/7/132740214/5859634.pdfIn PDF document text
    • http://wudaz.imagineclayavenue.org/uploads/1/3/0/7/130775181/7467653.pdfIn PDF document text
    • http://files.mpowertheworld.net/uploads/1/3/2/7/132740415/kadisetiwebuget_rofajanagojata.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/1/0438/4620/5602/files/84487866976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6249/3345/files/bpsc_ae_mechanical_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/18599343899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4535/5682/files/believe_in_yourself_murphy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/anti_form_sora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4755/8037/files/bunadojixeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/83782147227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9464/4638/files/bulls_on_parade_drum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6618/7176/files/naruto_op_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6059/9711/files/bsc_3rd_year_mathematics_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0802/2938/files/xokaxubumonavaguvisugegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6346/0508/files/46174223037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8497/0152/files/44866184911.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_off0000753a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753A 5180 bytes
SHA-256: df8f79b25d2a2b35e7d59c8b2f83261b597d223ddf7bca9787db475fca9e9091
font_01_sfnt_off000086ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86CE 10356 bytes
SHA-256: 5acd2e26d9fe87215998f50db9a300798261c43345eea80737bf4f824c8dba72

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