Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae880e184a0d4c50…

MALICIOUS

PDF

72.4 KB Created: 2020-07-30 15:52:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77ca51fa1889128e1dc744b9d13c315b SHA-1: 0545c0b76e09ddf69de83db48ed283801b0bbbf2 SHA-256: ae880e184a0d4c50d8adf789207218444e5990795f604a78ab17ed06195dd3bf
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the embedded URLs, 'https://ttraff.com/pify?keyword=fisiopatologia+placa+de+ateroma+pdf', is flagged as a known malicious redirector. The document body, though heavily obfuscated, appears to contain metadata related to PDF generation, suggesting the content itself is not the primary lure but rather a vessel for the malicious links.

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=fisiopatologia+placa+de+ateroma+pdf In PDF document text
    • http://files.harrisoncountyfrn.org/uploads/1/3/1/0/131070625/9408508.pdfIn PDF document text
    • http://files.arme-international.com/uploads/1/3/0/7/130739651/fe65f3.pdfIn PDF document text
    • http://files.davisionentertainment.com/uploads/1/3/1/3/131378852/4dc98.pdfIn PDF document text
    • http://files.augustatnba.com/uploads/1/3/0/7/130776265/5b20a7.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/1/0436/2646/3385/files/xageduxojenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/sizuzozegipawozebubamuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5086/6590/files/vuzedipubepanikemomuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/17156685540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/79371118053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0184/7708/files/gixebiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7818/8198/files/savodibojotakegelod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/97497280624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/10234138611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5490/8071/files/kowivoselexopurop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/76302772330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/51518807748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6412/1749/files/kituka.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 2

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_off0000df6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6C 5112 bytes
SHA-256: 5d74260918a1a62de38125b36625086ff49f28f1e0386e7874342747e4e85de5
font_01_sfnt_off0000f0d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D4 10572 bytes
SHA-256: aac59d7af71fc574c21b85bccc6d2749a2e3405efaa8e75f76fce53f9d37a5ee

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