Malicious PDF — malware analysis report

Static analysis result for SHA-256 6935c4a817152175…

MALICIOUS

PDF

37.0 KB Created: 2020-08-25 11:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 292fb0d72667975691a295133751b05d SHA-1: fa4697f349fc6b2f541c85a7839c89a9b6a4f5c4 SHA-256: 6935c4a817152175706c3bd18585f29bdb9f1fb7d2c8d29f518f9cc0df32906f
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though heavily obfuscated, contains text suggesting a lure for a video song, likely to trick users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.

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=anbe+peranbu+ngk+hd+video+song In PDF document text
    • http://bikezag.sunshinecoastcelebrant.net/uploads/1/3/2/6/132680981/e88b8f7fc10e.pdfIn PDF document text
    • http://sugel.livingbarsaddles.com/uploads/1/3/1/6/131637376/2498633.pdfIn PDF document text
    • http://vedaworu.cdsacademy.co.uk/uploads/1/3/1/3/131378776/rafizik.pdfIn PDF document text
    • http://tisuzogab.blair-ray.com/uploads/1/3/0/8/130873825/2897778.pdfIn PDF document text
    • http://files.holistic-iasis.com/uploads/1/3/2/3/132303238/f34bc0733e2e6.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/1/0429/5560/4124/files/konebubenijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8766/7104/files/gepopulob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/wupudurutufegevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3655/6962/files/vapivonusoweverabewumiriv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0595/0626/files/harriet_beecher_stowe_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0961/2712/files/8120314250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/viwuxedut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7352/files/14191169375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/durumivakuzazube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/38262154592.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_off0000535d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x535D 5444 bytes
SHA-256: 4a253846a1bc5056c850cd2ffb3453c25a4b60528e8f9b909ee2d7deedbc48e9
font_01_sfnt_off000065cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CD 9844 bytes
SHA-256: 0904fef93e3b0f9fa57f9ed3741edd8951a8885c63699f7db184974b1bc33290

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