Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01c42497767a105…

MALICIOUS

PDF

45.0 KB Created: 2020-09-17 19:38:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c71b0c7ec6fd0b2d94dc0b4d25955be SHA-1: 9d95c7979a0cb5aef743fc536ae38a8e9f11f855 SHA-256: d01c42497767a1054afdb6495da8a846f0d96ad0a2bac16e3a8ab3b68c13d127
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, masquerading as a sociology exam answer key, to a redirector URL. This indicates a phishing or scam attempt to lure users to malicious sites. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms the redirector is known malicious infrastructure.

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.link/wix?keyword=sociology+101+final+exam+answers In PDF document text
    • http://files.necementshippers.com/uploads/1/3/1/3/131378968/1a5360.pdfIn PDF document text
    • http://wopube.dslvnjny.com/uploads/1/3/2/6/132696056/18b0ff5.pdfIn PDF document text
    • http://vuwemejen.esteeculbreth.com/uploads/1/3/1/4/131406069/suvadev-wuleru-gazapixinided.pdfIn PDF document text
    • http://files.nationschurchistanbul.com/uploads/1/3/1/8/131856326/021c8eb833.pdfIn PDF document text
    • http://files.bestvacationplaces.org/uploads/1/3/1/3/131380052/nosijupujub-mowebabewak-vijewekevawapo-jebazewububur.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://54fa3fa4-83c2-4ec3-96c5-b5f5748442c7.filesusr.com/ugd/f523c3_db6bf2e51e234c50a9a11e11b955c6b4.pdf?index=trueIn PDF document text
    • https://594743c3-78ae-4da5-881d-0c67c87967d1.filesusr.com/ugd/b7306e_db2239eae64742af80eca0445d270f6c.pdf?index=trueIn PDF document text
    • https://b1dfc0b6-afd6-4d5e-98f9-231ac0a35975.filesusr.com/ugd/e00bd3_5b09b81367614eccbd45fc342f964a93.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/tezevopemegozomos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/5459/9844/files/71475379940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/pabov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3330/files/budefegewimeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4629/6982/files/75519928920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6436/1113/files/togekajakisuguvumoxowik.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000684d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684D 1864 bytes
SHA-256: 16a196c8fe7a764d937917129c7da1be318a5de3a28af0805659bf8205d434ba
font_01_sfnt_off00007136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7136 5760 bytes
SHA-256: 547a07a6bd7bc37c17e24f9c451d871875fa70313d49b0dcbad0ee261fba707a
font_02_sfnt_off000084e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E9 9864 bytes
SHA-256: 57929e4d341deced8b160d77a9169fb7d2d1b7c4a10800a39a21202c3ab291e6

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