Malicious PDF — malware analysis report

Static analysis result for SHA-256 be57beb70a42a2a9…

MALICIOUS

PDF

44.8 KB Created: 2020-08-20 21:10:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d1660f6aa912b7f9bd27048456e5fae SHA-1: c7be48638213302e5add529f1ac6f1a5be75a920 SHA-256: be57beb70a42a2a9d233808a4dd49d602de5477d3c86cbd645d322fe70e359b6
194 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link that leads to a link farm of other PDF files. The document body text, though partially corrupted, mentions 'Estimated cost sheet problems with solutions' and includes the malicious URL. This suggests a social engineering tactic to trick users into clicking the link, likely leading to further malicious content or downloads.

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=estimated+cost+sheet+problems+with+solutions In PDF document text
    • http://files.juneauanimalrescue.org/uploads/1/3/0/7/130739907/8d121fe0.pdfIn PDF document text
    • http://files.healthybodyhappyhearts.com/uploads/1/3/1/3/131381658/9398549.pdfIn PDF document text
    • http://files.vintagegypsysoul.com/uploads/1/3/1/4/131407111/5629863.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/1/0431/2432/6564/files/67923894174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2952/6688/files/57440712023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6973/0979/files/desassossego_fernando_pessoa_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4659/8816/files/advanced_english_vocabulary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8126/4293/files/65118668719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2344/5666/files/search_engine_marketing_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/3ds_max_2020_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3017/4113/files/beer_s_law_lab_answer_key_phet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/carburateur_zama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8994/3975/files/c_language_objective_questions_and_answers_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/catholic_mass_responses_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4486/4149/files/86943815707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/safety_data_sheet_sections_pictograms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/30128577296.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_off000065eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EB 5500 bytes
SHA-256: 54e4de73ede918be3cd581a20dd62d1fb074f21a618dd8640567a21fb56128be
font_01_sfnt_off0000787f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x787F 14752 bytes
SHA-256: 08399d1194c14aae26265c9bf975c59b2d363bab794d472c3c3c3889c0fa1497

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