Malicious PDF — malware analysis report

Static analysis result for SHA-256 fac9728702790963…

MALICIOUS

PDF

34.0 KB Created: 2020-08-22 19:06:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 038dd3959171b3be7b163493fb37d016 SHA-1: 7f185d264b6ebc78ae63fb73fb841eb370ffcc98 SHA-256: fac972870279096396c415f1559aadcec56ffccb643d2ffcae213caa24971f0c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.com/pify?keyword=manual+forno+eletrico+brastemp+gourmand+boc60ar'. This suggests the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, further supports the SEO link farm heuristic, indicating an attempt to manipulate search results or distribute content widely. The ML classifier strongly supports the malicious nature of this PDF.

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=manual+forno+eletrico+brastemp+gourmand+boc60ar In PDF document text
    • http://tetat.dentistmedellin.clinicamenta.com/uploads/1/3/0/7/130776445/e3662a0.pdfIn PDF document text
    • http://files.marsjoyofpainting.com/uploads/1/3/1/6/131606127/1986964.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/1/0437/9030/3381/files/15748188071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/binugulewexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/40013758491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1553/5774/files/emotions_definition_and_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/69230930906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3170/8316/files/51469774718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1747/8044/files/2015_suzuki_gsx-_r750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1121/0398/files/62639997340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9302/4149/files/48150902665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/81277495474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52733892229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3683/5993/files/pepopugomubavop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9270/4408/files/kigevukuwek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8832/1437/files/juxal.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_off00004621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4621 5916 bytes
SHA-256: 9ca68669c9f922a0ed68213644ba8ec6a1167f271697ba5d91b165a5c51a5749
font_01_sfnt_off00005a28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A28 9588 bytes
SHA-256: 7bde6a9d9d9738a078347c99f9823d7cc0833c9f57dabf454d741588a8cee524

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