Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dc5252442e642a1…

MALICIOUS

PDF

48.1 KB Created: 2020-08-18 15:23:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffefcf29f95b8932ae63af5c0ecc0ebf SHA-1: c720ff39e84c950deaa7271d42e69702e95b3361 SHA-256: 3dc5252442e642a11893ecaeb7d8725e3ea416ec66ab9b7b88bfba2033a62b99
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one pointing to a known malicious redirector and others to a large link farm hosted on Shopify. This suggests the document is likely part of an SEO manipulation scheme or a distribution point for further malicious content. No scripts were extracted, limiting the ability to determine specific payload delivery mechanisms.

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=define+reducing+agent+chemguide In PDF document text
    • http://tajop.williamsburgnaz.org/uploads/1/3/0/8/130814124/720a18cdc24.pdfIn PDF document text
    • http://saxizijav.sevenwindsfarm.com/uploads/1/3/1/3/131379598/96606611.pdfIn PDF document text
    • http://files.crappymagic.com/uploads/1/3/1/0/131070459/8523159.pdfIn PDF document text
    • http://rivosaxo.clayshootingdevon.co.uk/uploads/1/3/0/7/130775350/masogulem-rofuzevekuwanef-loxir.pdfIn PDF document text
    • http://files.pinkgingerhairsalon.com/uploads/1/3/0/9/130969211/d2d25.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/kegedufizikegudorowonek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1972/1115/files/bretonnia_army_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/gold_star_chili_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5748/6753/files/naming_aromatic_compounds_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3042/files/kinesafekuvikilukotonase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/basic_topology_armstrong_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28391359898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6364/7131/files/gutadadujanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2523/files/20129827436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5167/7856/files/26539060353.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://www.gnu.org/licenses/gpl.htmlIn 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_off00006d5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5A 5224 bytes
SHA-256: 93b4b0d305ab4929ccac117704aa5cfa61b58d9d77f602b78a1151b2b311adc6
font_01_sfnt_off00007ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE8 6096 bytes
SHA-256: 5c8315477683aa1d3fd841116862019cbbba5c4771cd38d8881bbb85ed012e8f
font_02_sfnt_off00008e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E98 10912 bytes
SHA-256: 380da6adcf976d5aa5c356fbfd1c1757e9320567c8d889961ba8a82106072554

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