Malicious PDF — malware analysis report

Static analysis result for SHA-256 9faaaee09761a773…

MALICIOUS

PDF

46.7 KB Created: 2020-08-07 15:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e9e19233added3d21cad429bb376dd3 SHA-1: cd2cff6bc93b788d0485f436fbc1f2c194dc059a SHA-256: 9faaaee09761a773268df9dae00a9bf1d5a8737ee4df93294b51ca034c1a127e
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, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that a link within the document redirects to known malicious infrastructure at 'ttraff.cc'. This suggests the document is designed to lead users to malicious sites under the guise of providing a download for an 'advanced auditing textbook'.

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.cc/pify?keyword=advanced+auditing+textbook+pdf In PDF document text
    • http://files.oskie.net/uploads/1/3/1/0/131071157/muvekugifunefukumes.pdfIn PDF document text
    • http://files.marshmyers.com/uploads/1/3/0/8/130814032/818592.pdfIn PDF document text
    • http://files.huntersvillepres.org/uploads/1/3/1/4/131408203/ruzowap.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/1/0440/9622/5432/files/bb_apps_world_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/budapest_tour_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4517/9807/files/remove_office_2016_product_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0532/0088/files/zaparugugoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/vatataguxuripanesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0386/1401/files/building_management_ordinance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/80745157240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7108/6492/files/academic_word_list_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/nirupoxuxuzuwixesikig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/tadurakulakujivobade.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 6

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_off000077dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DD 5340 bytes
SHA-256: a4d0d432d72eab3d9832d8bde56bad6604fcb12123799b198c1aba3d5988db35
font_01_sfnt_off00008a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2B 10548 bytes
SHA-256: adbfdf3c8af76c45d596c916c14c9bce24041fd5a09e82744d888f00b822010d

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