Malicious PDF — malware analysis report

Static analysis result for SHA-256 8673cc297c021731…

MALICIOUS

PDF

91.2 KB Created: 2020-08-08 20:02:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e1aacd0a7ad3c8fe39b0bd139574bc7 SHA-1: c8dfe3266a01a83a41b481f37934648adf2ec86b SHA-256: 8673cc297c02173190b5b251d7af9dd2f3a3ed2e6cabb3c524f2861c072ee946
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to a phishing or scam attempt. The primary malicious URL identified is ttraff.com, which is used in conjunction with a keyword suggesting a lure for a diet PDF. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the phishing intent.

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=alkaptonuria+diet+pdf In PDF document text
    • http://files.cellotechnique.com/uploads/1/3/1/3/131379510/banexidigoserav.pdfIn PDF document text
    • http://files.thewanderers.org.au/uploads/1/3/0/7/130739758/22797f3e59.pdfIn PDF document text
    • http://mumanego.anti-agingbyrjxjelly.com/uploads/1/3/1/4/131452903/dowujabakowamum_pepimogat_naziluna.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/1/0433/2224/5273/files/57979464782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/bozokijexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1961/6935/files/naxomusetotisofifuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/lipesaros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/panapasogipogitesumov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8216/2084/files/23172545805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/zafivupumetenujuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/12671236688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/buxawerirupudebevinukum.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off000109bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109BF 4908 bytes
SHA-256: 09e2222c9e532b8f53233e60e1ee4f89f9593fe99d1e664a9e7a426bdacf23ea
font_01_sfnt_off00011a83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A83 15964 bytes
SHA-256: cd5b3626c98e08a6c40275a80a2e1b80822827f11498cc228744134f16a44ac1
font_02_sfnt_off00014af3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AF3 16060 bytes
SHA-256: 99ddc6f5858eb134f8024171ebe717cbd02485c31471b921a5021903b5272953

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