Malicious PDF — malware analysis report

Static analysis result for SHA-256 527e3dd75ea6b6ba…

MALICIOUS

PDF

44.5 KB Created: 2020-09-16 20:33:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: aef57b869c4152a98ffc468d2c8b54df SHA-1: efa0cd18310d19d08edaabdf1c0be7981f1e75c3 SHA-256: 527e3dd75ea6b6ba14728feae02b688815c96baaf5e4a49a75b26c00820b5f13
194 Risk Score

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.link/pify?keyword=financial+statement+analysis+project+example In PDF document text
    • http://files.gladwinharrisoncatholic.com/uploads/1/3/2/3/132303024/dokiziwazibegaridup.pdfIn PDF document text
    • http://files.trade-genetics.com/uploads/1/3/2/6/132683292/d5bba5eb.pdfIn PDF document text
    • http://files.tinastewarddvm.com/uploads/1/3/1/3/131378780/zuzolokutelejes.pdfIn PDF document text
    • http://files.rsvpvolunteercaregivers.org/uploads/1/3/2/6/132681824/navate.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c6e5d02d-2246-462e-a189-226c12a5bfa5.filesusr.com/ugd/24d943_9dc7934cb1ce4e0ea035009349b4e525.pdf?index=trueIn PDF document text
    • https://5a5e8be2-fd01-45af-82f5-202136c7d0f5.filesusr.com/ugd/bba345_48c00e0aeff54527aea64a649de8a59f.pdf?index=trueIn PDF document text
    • https://1c87a797-44f4-43a6-aa1c-6575f2e57526.filesusr.com/ugd/e643da_9f5351e8cf23480c9f0600744db2524e.pdf?index=trueIn PDF document text
    • https://2933824c-536c-40f6-9735-8c7e1ef14f6a.filesusr.com/ugd/f4de5e_94b5299e018d4330b2aab598dd221c92.pdf?index=trueIn PDF document text
    • https://5a5e8c95-3e74-42f6-b2c9-ff6a33071427.filesusr.com/ugd/e6092c_c48a2a1ee6fd425984bed1fd1177b689.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/sedipixipano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6112/5013/files/my_airtel_online_recharge_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/monthly_budget_spreadsheet_excel_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7584/6563/files/kipixinoxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7930/3317/files/english_grammar_in_bengali_language_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8454/6209/files/vijamavapewenoligag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5415/3371/files/informal_letter_writing_questions_for_class_7.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_off00006d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8B 5280 bytes
SHA-256: ea784125c7e1c158e055bf797db00c03c5d7c066741da3d1e43bc888ef6c24bd
font_01_sfnt_off00007f7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7E 10856 bytes
SHA-256: 55ce49130c3a06f165b1dae27d7fca4ec7d06cbd6b7a1afd4c6119ba1ae6b195

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