Malicious PDF — malware analysis report

Static analysis result for SHA-256 872c0c57073cd063…

MALICIOUS

PDF

38.4 KB Created: 2020-09-13 18:50:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90a725c2ceecd33aff3967d4a20b4787 SHA-1: 1f12e181f5fb9ced39c704332400e89a111b3911 SHA-256: 872c0c57073cd063e1d46208387f9aec4d1950bd684822c8ce14a1828e2cbbe5
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, with a primary link to 'ttraff.club' identified as a malicious redirector. This redirector is likely used to funnel victims to phishing pages or download further malicious content. The document body and embedded links suggest a lure related to 'free downloads' or specific topics to entice clicks.

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.club/wix?keyword=the+illustrated+easy+way+to+stop+smoking+pdf In PDF document text
    • http://files.thenappyworkshop.co.uk/uploads/1/3/0/7/130775893/7635755.pdfIn PDF document text
    • http://files.showfancy.com/uploads/1/3/1/1/131163898/keleziworixi-jepuxibozodux-bodeworure.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/1/0438/0763/7661/files/housing_development_business_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7657/4620/files/74295905247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/17238909339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5438/9665/files/rebanorixibes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7985/0397/files/79633792194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/jebarak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0785/2192/files/je_vole_partition_gratuite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2139/4343/files/bernard_marr_data_strategy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7424/7069/files/60399031909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0422/1846/files/46906107224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9336/7710/files/92796709798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2982/9544/files/present_and_past_tense_exercises_with_answers.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 3

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_off0000506f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x506F 5660 bytes
SHA-256: b21d37048ad235e0c0b8c3406544f887c6fb3eb70162447a1bd51d81ddfc26a7
font_01_sfnt_off000063a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A0 12664 bytes
SHA-256: 1de0a84ddc3682c092ebb40bd29d8e1f467f5de3d2c9072baccf32fa9951152f

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