Malicious PDF — malware analysis report

Static analysis result for SHA-256 73fdd9b005f740f6…

MALICIOUS

PDF

61.9 KB Created: 2020-08-08 20:15:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a246ee5f2327ee4f9aa6669c55cc9a8 SHA-1: 7004d6792421e1c73d575de4b4ba15c74b339adc SHA-256: 73fdd9b005f740f67bac7c86cc2f5c56d78e23497e75301873c57f90323d121c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lure users to a link farm. The primary malicious URL, 'https://ttraff.com/pify?keyword=bactericidal+and+bacteriostatic+antibiotics+pdf', is identified as a malicious redirector. This suggests the document's purpose is to facilitate initial access through a phishing lure, likely leading to further malicious content or exploitation.

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.com/pify?keyword=bactericidal+and+bacteriostatic+antibiotics+pdf In PDF document text
    • http://files.thecoachmensclubhouse.com/uploads/1/3/0/7/130739690/5ddd5ad2ea.pdfIn PDF document text
    • http://files.advancelabordaypicnic.org/uploads/1/3/1/8/131857465/3568262.pdfIn PDF document text
    • http://files.sarahwatercolorart.com/uploads/1/3/0/7/130739704/a694910985243.pdfIn PDF document text
    • http://files.gilliantorckler.com/uploads/1/3/0/8/130874629/gomenevidi-kinepowa-xasokipa-xupuzateseroji.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/1/0432/3170/7294/files/73514482079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/ladunonaluneripine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0631/1070/files/pijijiterolopej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7325/7116/files/vureputawegeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5676/6869/files/2004_polaris_sportsman_500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3854/5819/files/pipiparagajetimibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2579/9067/files/93990120430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3496/files/1462224725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7467/3057/files/jeredikemerozuvuvev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/82755996587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/terij.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA014 5336 bytes
SHA-256: 354554ce638a85385a675fcbff9d0217ba3fd0533ff77076b96bd79dc70bb310
font_01_sfnt_off0000b240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB240 9992 bytes
SHA-256: 7f66c43ddc0f8f2d4bb1f054b4f9aa857752de922540052c8ecc85e378407d04
font_02_sfnt_off0000d498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD498 16208 bytes
SHA-256: f77972c353b33f73bb6c165739ca4c01067b7b527bd9d028a27aa4245e14d088

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