Malicious PDF — malware analysis report

Static analysis result for SHA-256 08f2cb8100c86c72…

MALICIOUS

PDF

53.1 KB Created: 2020-08-19 19:10:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58fe41025335fff37a4359198d03ae51 SHA-1: 66f0dff80e72d420cc95805fdb1794aad2d7f1cb SHA-256: 08f2cb8100c86c7248e4684523eabe450a51234d47a657ecdd7f0ac857f5b31e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one that redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'party invitation template'. The presence of numerous external PDF links, many pointing to Shopify, indicates a potential link farm or SEO manipulation tactic to distribute malicious content. 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=party+invitation+template+free+printable In PDF document text
    • http://files.superbloomcoffee.com/uploads/1/3/1/8/131871704/13bc9f9b3d5a6.pdfIn PDF document text
    • http://mokorisu.colinjlmccartney.com/uploads/1/3/2/7/132710712/foravivenubanu-tijovokas.pdfIn PDF document text
    • http://taxevinu.nicoangiuli.com/uploads/1/3/2/7/132740541/bigemekitifozofozeza.pdfIn PDF document text
    • http://rifufav.haeppi-ranch.com/uploads/1/3/0/8/130874493/6509788.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/1/0428/3380/5471/files/94993372657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/45967390426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4033/0148/files/materi_assessment_center.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9349/0838/files/23589188090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2669/2771/files/employment_termination_letter_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/51353086228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/tunanapojomidusoteso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0409/2828/files/limiting_adjectives_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3031/5159/files/jetesos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6902/1091/files/rozita.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_off000084d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84D3 5172 bytes
SHA-256: 368275c038e3cd30c6ff161afb8024d9ffbf6f6d0e1f81142b25bc69e9d64384
font_01_sfnt_off00009660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9660 15912 bytes
SHA-256: c236e0a4cba1649ff1e6d72c2f4a9e6fe718edf1d00dbef8826fb6263f09330c

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