Malicious PDF — malware analysis report

Static analysis result for SHA-256 320b576c047c62f4…

MALICIOUS

PDF

37.7 KB Created: 2020-08-11 03:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 518abf0f6bb9860a04ea02873643d2ab SHA-1: d0d92a07f64c68e02138c73836f2cb0878f05c75 SHA-256: 320b576c047c62f489fabd859f4c069ec14c33a1c68d98538d49c0ec6675db4a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a link farm pointing to malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=behaviour+management+book+pdf'. This suggests the document's purpose is to redirect users to malicious sites, likely for phishing or malware delivery, by masquerading as a 'Behaviour management book pdf'.

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=behaviour+management+book+pdf In PDF document text
    • http://jajupesi.bellannebutterflyblessings.org/uploads/1/3/1/3/131398140/nenudonenivufojusa.pdfIn PDF document text
    • http://files.mizpah36.org/uploads/1/3/1/3/131379045/6624586.pdfIn PDF document text
    • http://files.angelcreations73.com/uploads/1/3/1/0/131070911/xanudotadavub.pdfIn PDF document text
    • http://bumex.unitedneighborhoodsoforange.org/uploads/1/3/1/4/131482975/zawikifibute-kurusokega-wupisego.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/1/0428/2282/8198/files/child_immunization_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/29832350738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3599/8880/files/dibogup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30547733638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1808/1688/files/9979503757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9910/2115/files/81892110998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7589/4422/files/tuzabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/gawenonelopenotipomad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/61311900769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9338/3585/files/11769129460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/4009261014.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_off00005318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5318 5556 bytes
SHA-256: 9a5d87c6a5ee03f0d7cbebbb39faa0a379f3c0c3ccb6fc23f7aab0fcd04f0d2e
font_01_sfnt_off000065e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E2 10624 bytes
SHA-256: b59f255b5c9df0259dc336a284c682e8536e49b794cae87a0dd93d03ee12c241

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