Malicious PDF — malware analysis report

Static analysis result for SHA-256 882d90d6c772956e…

MALICIOUS

PDF

41.4 KB Created: 2020-08-28 10:40:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3b2c02663e84bb97a38e60b31989ad4 SHA-1: c7c351f1fbbfb4b8350ac5b40b84e3526275e304 SHA-256: 882d90d6c772956edbea336474c7f08227aa228f1e53672dca15864bce8e536f
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to a redirector service, indicating a link farm or phishing attempt. The ML classifier also strongly flagged this PDF as malicious. The embedded document body text, though heavily obfuscated, contains a URL that appears to be part of the lure, likely leading to a malicious site or further payload download.

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=printable+funny+fortune+cookie+sayin In PDF document text
    • http://files.darrellneufeld.com/uploads/1/3/0/7/130776769/suvumodojidof.pdfIn PDF document text
    • http://files.mcveyoutdoors.com/uploads/1/3/2/6/132695994/5594059.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/1/0432/8482/4222/files/gefigebumazefud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2470/9782/files/44243974901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sotuxinonuwirumedubisaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/65137429608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/98851834013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8179/3698/files/figebipiwixuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3305/9479/files/clifton_beach_hobart_surf_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/rasijenifefozugej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/47888819735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5925/6232/files/cummins_parts_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1539/7788/files/xamaruniwadomisukij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/femot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/talulan.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 5

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_off0000663b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x663B 5180 bytes
SHA-256: d1e8b8c7cb47b0cb81819a6a07879b0c3a56cbdc555ff3a6403195995b0e56f2
font_01_sfnt_off000077f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F1 9688 bytes
SHA-256: 1912f66de6d5f18aaf7b8c0296cc212890c7710f607dfdad75f37fdec8d05698

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