Malicious PDF — malware analysis report

Static analysis result for SHA-256 76ce437f1fc99eb8…

MALICIOUS

PDF

46.6 KB Created: 2020-08-09 16:06:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9186536e4a07ec8f17110ce95703c517 SHA-1: f2015ccb3482a383ad763da5c666b33e00bdad98 SHA-256: 76ce437f1fc99eb81c5713b5ff977c46827679b91584755cb246b5a54ee31177
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded links, with a primary link identified as a malicious redirector. This redirector, 'https://ttraff.cc/pify?keyword=aftercare+eyelash+extensions+pdf', is designed to lure users into downloading further content, likely malicious. The presence of a large number of external PDF links, many pointing to Shopify domains, suggests an attempt to create a link farm for SEO manipulation or to obscure the malicious redirector. The ML classifier strongly indicated maliciousness.

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=aftercare+eyelash+extensions+pdf In PDF document text
    • http://files.merwininsurance.net/uploads/1/3/1/4/131438423/sunifisefezabul-poritewegageted.pdfIn PDF document text
    • http://files.mitradingschool.com/uploads/1/3/1/6/131607054/zamelo.pdfIn PDF document text
    • http://files.spotorangedesign.com/uploads/1/3/1/8/131856039/xomiza.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/1/0433/9240/1573/files/adrenergic_and_antiadrenergic_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4921/2311/files/datumegisimufeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7451/8178/files/92318918442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/livro_oraes_fortes_de_umbanda_e_candombl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/naxoxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/17722464453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/murikefufejujurabiwedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0487/9271/files/dovatuwagesiraveka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vitalifurefafimeribedewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0711/5423/files/rozurenapupuritat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8843/5613/files/bufawuvugagojurexesilawad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9930/8711/files/sivosag.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_off000075df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75DF 5400 bytes
SHA-256: 356d95a04acedf547549529fb6fe65386b8d467452503eebb3f6a02bdd062060
font_01_sfnt_off0000884a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884A 11516 bytes
SHA-256: bae6f6c78380856f5df0a37e4744d6b070577956451e26498ad110ca9f294fc7

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