Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c3721a1a935ec56…

MALICIOUS

PDF

34.1 KB Created: 2020-08-22 23:05:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60191fb1d3fc0dcc16b17e2194e40de8 SHA-1: cf27cff388d0c7743551e370be391e957bff3302 SHA-256: 6c3721a1a935ec565bd679ac39c2ff567d6cb6b0a5b0e21e96a2f11842f2db65
194 Risk Score

Malware Insights

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

The PDF contains embedded links and text suggesting a lure for a movie download, directing users to a known malicious redirector. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's part of a link farm designed for SEO phishing. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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=beyond+the+mask+full+movie In PDF document text
    • http://files.hisandhersboutique.net/uploads/1/3/2/7/132740536/1950206.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/1/0433/7015/2088/files/33611641432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1101/files/gotarewawitixosapawake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9963/4328/files/64675772053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0025/1036/files/sosigixasowiritixad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/namolibovidezonopurepol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6558/2235/files/wulalurizunatekovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0756/6239/files/libro_de_quimica_enlaces_quimicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6074/6648/files/ctet_answer_key_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0068/2906/files/afloat_shopping_guide_navy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1010/4228/files/53457568723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1703/6198/files/21400116684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/canterbury_tales_the_merchant_s_tale.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_off000046a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46A1 5328 bytes
SHA-256: a6f4d35544b9ba08e281205e569f31320b9c5da6ebd8a0975187d8d8eb7b869d
font_01_sfnt_off000058a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A5 10304 bytes
SHA-256: 682ec7383beb279b254bd612dce6fde68714c7a87f37bb62556a373ef3775651

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