Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d5174124143fbea…

MALICIOUS

PDF

39.1 KB Created: 2020-08-19 14:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 412bf6bc0769121a8d1ebaaae17042f7 SHA-1: 29478f2dcb004ea115ad3eb45629a3c2a9d44fb8 SHA-256: 9d5174124143fbeaec92f80e510a5341ff08adc3a6c93e2e01c0549252fedb13
234 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector. This suggests a phishing or scam attempt designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.ru/pify?keyword=relative+clauses+latin+worksheet In PDF document text
    • http://files.hibbingbands.com/uploads/1/3/0/9/130970004/6831771.pdfIn PDF document text
    • http://files.villajadisottomarinaapartments.com/uploads/1/3/1/8/131856904/subefozefij.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/1/0429/4079/2999/files/vimirego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1750/1853/files/two_column_cash_book_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7645/files/sarutibulukefegufeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/receiving_clerk_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0671/4268/files/bopukawujew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/80405863569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/vocabulary_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/introduction_to_categorical_data_analysis_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/lufenokibumanuwol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9371/1261/files/junuforaguvetenek.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 2

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_off00005d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D05 5108 bytes
SHA-256: ec0f45c905b2880ba8c5268df8bfbad9c3620254d32179d11f6f5b0465a6eb5a
font_01_sfnt_off00006e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E78 9756 bytes
SHA-256: 7f30511a4eb4acd199fa1b12a0bb07a74c56d80e65e1a46b753406a4fb4a20b9

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