Malicious PDF — malware analysis report

Static analysis result for SHA-256 3522f147715b6c81…

MALICIOUS

PDF

50.6 KB Created: 2020-08-01 02:23:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01a56e2b62af64d8fd6e4d4cd6450ae9 SHA-1: c9599435941b5f4f729b20e4e41bdd05e5fd847d SHA-256: 3522f147715b6c81464d2d1b0fdd3f4b0e1a4eec17fff4cec8c28d737512c1f7
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that points to a redirector, which is likely part of a phishing or malware distribution chain. The presence of numerous embedded links suggests an attempt to lure users to external, potentially malicious, sites.

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=real+feel+temperature In PDF document text
    • http://files.briankingwebsite.com/uploads/1/3/1/0/131070374/8566882.pdfIn PDF document text
    • http://files.seekingthepast.com/uploads/1/3/0/7/130775076/5639586.pdfIn PDF document text
    • http://files.fcctboosterclub.com/uploads/1/3/1/4/131438464/juvigodafike.pdfIn PDF document text
    • http://files.florologie.com/uploads/1/3/1/4/131407179/a400df88d0d3403.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/1/0436/0385/3469/files/99978062671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/98245632819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/sopovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/nazudaxajomemijode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/3001/files/wogitisunameka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/82507959431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/41595396420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6635/2025/files/nekejel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/banomuzagaluzeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9898/6909/files/20913440099.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
🗂 Part of campaign: florologie.com 3 samples

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_off00007e9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9C 4876 bytes
SHA-256: 8e1e01948d625f5195f6247fd09f1264249e99b7f490deab2ceca8a4fced0631
font_01_sfnt_off00008f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F27 14852 bytes
SHA-256: 848b4212c0c2fabfafc43223ef29f32353e6c6e44126450c73e25d7722cfc0df

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