Malicious PDF — malware analysis report

Static analysis result for SHA-256 365d6bbf871ec5a5…

MALICIOUS

PDF

46.4 KB Created: 2020-08-07 15:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec07ded33982747333a9dab4df504ff3 SHA-1: 1aadd0b2dbfc3abf38f780289934078460689297 SHA-256: 365d6bbf871ec5a5c28afc87184ce6eb55375a0d34053177672767bb088b386a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector. The primary malicious URL, "https://ttraff.com/pify?keyword=bazel+tutorial+pdf", is directly referenced in the document body and is designed to redirect users. The document body itself is heavily obfuscated but contains the lure text "Bazel tutorial 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.com/pify?keyword=bazel+tutorial+pdf In PDF document text
    • http://files.tnlsfranklin.com/uploads/1/3/0/9/130969148/6434410.pdfIn PDF document text
    • http://files.glendaleridingschool.com/uploads/1/3/0/7/130775813/7912317.pdfIn PDF document text
    • http://repufovib.lensaimagesphotography.com/uploads/1/3/0/7/130738970/6712314.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/1/0432/9222/9797/files/major_depressive_disorder_dsm_5_criteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0902/7735/files/warsaw_pact_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/90220561314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/72150842178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4678/8502/files/jupaligunawikokil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0911/2226/files/22705476086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3942/2624/files/what_is_spinning_content.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1021/2518/files/9545837863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/fujamoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1299/2672/files/soluciones_hipotonicas_isotonicas_e_hipertonicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39843759369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/muvifurirufos.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 4

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_off00007861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7861 4956 bytes
SHA-256: db992b2d215bf9babad64aadbc4cc4d7e631829cbc11447315c9e0729fa7ba50
font_01_sfnt_off00008957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8957 10276 bytes
SHA-256: 1577cfccb9a3b8184638e0277891cceb1bc54f79fa58075e9a8ec9187bc76642

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