Malicious PDF — malware analysis report

Static analysis result for SHA-256 8917416c630c8615…

MALICIOUS

PDF

40.1 KB Created: 2020-08-21 07:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a729ad63561b09f3f221a043b70cc7a SHA-1: 64dab5747a4ae3ddd01f0e8a15d50208c16ba778 SHA-256: 8917416c630c8615e8edfae87284a679cd87b30408f41d654374452737109486
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.cc/pify?keyword=aol+email++attachment'. The document body also contains this URL, suggesting it's the primary lure. The presence of a large number of external PDF links, many pointing to Shopify, indicates a link farm designed to obscure the malicious destination. The ML classifier strongly flagged this PDF as malicious.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=aol+email++attachment In PDF document text
    • http://rozedon.sustainablerecovery.net/uploads/1/3/1/4/131407406/600719.pdfIn PDF document text
    • http://vitavuf.john4rmcsd.com/uploads/1/3/1/4/131438405/7773058.pdfIn PDF document text
    • http://files.michaelcozzaglass.com/uploads/1/3/2/6/132681740/bosoj_tazedasejopa_miroguwofux_bilaxanela.pdfIn PDF document text
    • http://nilumaf.macleanhighschoolcareers.com/uploads/1/3/0/7/130740510/tefeligo.pdfIn PDF document text
    • http://files.ninemillionbicycles.com/uploads/1/3/1/4/131453651/wowekilomerijulig.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/1/0430/8575/8617/files/nightfall_in_middle_earth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/65062904549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/ruveguvekerezewujavutazop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6530/files/rejudupavazizugota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0938/4345/files/72173457700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4579/6512/files/nepajonido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/39988518049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7414/1864/files/47966881253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/livro_o_cristianismo_puro_e_simples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4590/3774/files/73720327557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7516/6620/files/78244827018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8210/5511/files/fuxolaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/archero_hack_apk_1._0_9.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_off00006036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6036 4752 bytes
SHA-256: 09a4e5f766509e0f42452730d5fddd21ab32f5ea597a4b0043f216983358e0fc
font_01_sfnt_off00007038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7038 10396 bytes
SHA-256: ebe14a02efd4a41ad220dedc4f4f0edb48d285b7fb07278e540f9977bb107330

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