Malicious PDF — malware analysis report

Static analysis result for SHA-256 282b0415b3bbb09f…

MALICIOUS

PDF

34.8 KB Created: 2020-08-11 05:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fee3041ae6ca83f5b2ed60c6088ecb42 SHA-1: 27b089e94698b9eec90ce5f5195c2eff0e95309a SHA-256: 282b0415b3bbb09f329b6bdb495051ff1c05255c949549122f5d3abba37c71da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, "https://ttraff.cc/pify?keyword=master+mind+brain+teasers+pdf", is designed to lure users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to potentially malicious or unknown domains. No scripts were extracted, but the presence of the redirector and link farm strongly suggests a phishing or malicious redirection attempt.

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=master+mind+brain+teasers+pdf In PDF document text
    • http://sajite.thenextbigthink.co/uploads/1/3/2/6/132682090/9c9b86f42b5c.pdfIn PDF document text
    • http://files.sevenstarsamerica.org/uploads/1/3/1/3/131381946/b611fbf946e4c.pdfIn PDF document text
    • http://files.madebyloulou.net/uploads/1/3/1/8/131871891/59bfb6ba928ffb6.pdfIn PDF document text
    • http://files.amtboats.co.uk/uploads/1/3/0/7/130739369/ddaad202afb0a2.pdfIn PDF document text
    • http://files.mickylynnexecutivetouch.com/uploads/1/3/1/4/131437106/3955282.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/1/0440/3593/2310/files/terry_travel_trailer_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91025233068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1510/9799/files/28897324456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2256/1958/files/mamuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/xameg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/joxiwitotivabigapewegabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/fepakitedafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9667/7279/files/piwetaziteze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1567/3752/files/68853269378.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_off0000494c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494C 5300 bytes
SHA-256: b39041e40f2318831faa4f33a1320145ce7a146820e9ae0d9fb64b5377bd7e51
font_01_sfnt_off00005b2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2E 9920 bytes
SHA-256: 89a0ceb7f326bca3e59bd8831ea0f3203e8b63e84103a7ea065b95d65b23fbfc

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