Malicious PDF — malware analysis report

Static analysis result for SHA-256 3326805a66539c30…

MALICIOUS

PDF

54.7 KB Created: 2020-08-05 04:23:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04cd80c47c6c05d43fdb011ae08f240e SHA-1: 7255f8c7738ac579011738a10acd4f007ddd6dd5 SHA-256: 3326805a66539c30fabb99cfdcbd2044df738e9eedcf3bcaae2e6a33131ac865
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, suggesting a link farm or spamming operation. The ML classifier also strongly flagged this PDF as malicious. The embedded URL points to a redirector, likely intended to obscure the final malicious destination.

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/pify?keyword=spanish+colonization+in+the+philippines+summary+pdf In PDF document text
    • http://tujokud.pacificplacesf.com/uploads/1/3/2/3/132302780/9464198.pdfIn PDF document text
    • http://files.undauntedcolorguard.org/uploads/1/3/1/4/131407138/8668279.pdfIn PDF document text
    • http://files.pelletgrillcentral.com/uploads/1/3/0/9/130968921/vapenavided.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/1/0429/7926/2623/files/58109124671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/48592161849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4677/1607/files/wubuxumotuvug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/3642439281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7824/5790/files/60715565652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9561/1809/files/didinigata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6974/1983/files/juzabinidujugaxoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/83421664969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/josegegunasurawefetara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4518/2888/files/22015142934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3702/4668/files/pudedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6966/8517/files/76506704129.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_off0000979a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979A 5652 bytes
SHA-256: 3fe7c61aa5e79d8ec1e80b17fe8b6e59c554c04475c3cff1a54e2a272544e553
font_01_sfnt_off0000aab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB8 10160 bytes
SHA-256: a904d26ea8f08f80eae9c58db4e386ae1953061bcdae805ff723205020a83697

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