Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aca74e67f6b9f69…

MALICIOUS

PDF

40.1 KB Created: 2020-08-05 22:54:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60ea8f3346d52f6885aa345dbe11cc20 SHA-1: d9084c5749de9f583f623404f6197270ff434b38 SHA-256: 0aca74e67f6b9f69c855d549d23f31c651d27922503e3ef86d898d9208b6ac16
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with the primary one redirecting to a known malicious infrastructure. The document body and embedded links suggest a lure for free downloads, likely leading to a phishing or malware download site. The ML classifier strongly indicated maliciousness, and the PDF structure points to a link farm designed for SEO manipulation to attract victims.

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.ru/pify?keyword=doing+bayesian+data+analysis+second+edition+pdf In PDF document text
    • http://xujak.triggerindustriesinc.com/uploads/1/3/1/4/131408024/a0bdc5e270cfeb0.pdfIn PDF document text
    • http://files.omnibusologist.com/uploads/1/3/2/6/132695543/jogamoboxejuresugi.pdfIn PDF document text
    • http://files.whitegallowaysofwayby.com/uploads/1/3/0/8/130873907/fewubogukobavel-sixomolimu-mifip.pdfIn PDF document text
    • http://files.dynamitekickboxing.com/uploads/1/3/1/4/131438299/52f75b6a2a1b.pdfIn PDF document text
    • http://files.thenakedfish.com/uploads/1/3/2/6/132696604/gutebo_waxab_vuviraxegexoru_vumobo.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/1/0428/7673/1558/files/fuwifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/54011939626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/60951459715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/lunozamopuwoxuvov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/20652089562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/fukipasititesed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7529/6670/files/pabak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4658/3976/files/62790028015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3712/9895/files/javascript_revealing_module_pattern.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/zusipuxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8917/files/microsoft_digital_imaging.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_off00005dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD8 5468 bytes
SHA-256: 847ed262a55dc6c4175e585265423296e985dc3fd7a091ddc2a030efdf12c602
font_01_sfnt_off00007092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7092 10108 bytes
SHA-256: 5b4cfc67cba24f605f15d5d4c2665872447e1d9af8ce119fb5324d6f446e1c87

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