Malicious PDF — malware analysis report

Static analysis result for SHA-256 817b6bef16b83245…

MALICIOUS

PDF

45.2 KB Created: 2020-08-07 21:18:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f21fe5808777c3610dc60fdbd2b7f08a SHA-1: e04bb4858cd73b322d0304222669d1cde4628025 SHA-256: 817b6bef16b83245e566a7996f50761a3ea4c903f54582a8c483bbc77fed2056
194 Risk Score

Malware Insights

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

This PDF file was identified as malicious due to its use of a redirector link, specifically 'https://ttraff.cc/pify?keyword=utensilios+de+cozinha+em+ingles+pdf', which is associated with malicious activity. The document also contains a large number of external PDF links, suggesting it is part of an SEO link farm designed to lure users into downloading potentially harmful content. No scripts were extracted, but the embedded URLs and redirector activity indicate a phishing or content-luring attack pattern.

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=utensilios+de+cozinha+em+ingles+pdf In PDF document text
    • http://files.delectanibble.com/uploads/1/3/1/4/131438217/boxokajikawevunadato.pdfIn PDF document text
    • http://files.handsfreehectare.com/uploads/1/3/2/7/132740408/39ffc6.pdfIn PDF document text
    • http://files.nalinikrishnankutty.com/uploads/1/3/0/8/130874128/mewajuluxojuvafox.pdfIn PDF document text
    • http://files.mothernurtured.com/uploads/1/3/0/8/130814515/1566625.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3178/7670/files/55821192376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5533/3027/files/present_simple_exercises_perfect_english_grammar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48787523288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/11633762397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/partnership_fundamentals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/62439954971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/1341631147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/vameb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6805/4949/files/vekis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/babizanogozexoxopejugof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8828/8675/files/associer_deux_en_un_seul.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000612b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612B 5300 bytes
SHA-256: 86253b196143abbde1d1ade6524a4d915240787b70d40f6129c0dbe7696ef11d
font_01_sfnt_off00007316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7316 12132 bytes
SHA-256: 60ce2e94d5ea12cb6591d6609b5ce29c5ef59eebd872f8821aa2cb32aa333a30
font_02_sfnt_off00009822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9822 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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