Malicious PDF — malware analysis report

Static analysis result for SHA-256 63834f447d9d920a…

MALICIOUS

PDF

51.8 KB Created: 2020-07-30 13:09:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1174d7ea447f6672560399dfc5f4af6e SHA-1: eb358e4228efb81011e36f93873a1a471521acf7 SHA-256: 63834f447d9d920a2b52d35078b85dd072d7dba7a28c71a7fcba5702cd3dfb19
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which point to redirector infrastructure designed to obscure the final malicious destination. The document body, though heavily obfuscated, suggests a lure related to an 'aeroponics guide pdf'. The presence of PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics indicates a likely attempt to distribute malware or phish users through a link farm. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=aeroponics+guide+pdf In PDF document text
    • http://files.apollonasglykas.com/uploads/1/3/0/9/130969775/bidezevirivale.pdfIn PDF document text
    • http://files.burtthompson.net/uploads/1/3/1/4/131482991/vekojob_wizokawixenaw_movamiduba.pdfIn PDF document text
    • http://files.shandsschool.org/uploads/1/3/0/7/130739971/ba41b52a04.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/1/0434/0288/7322/files/mikodirigogifatipojosiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4302/8120/files/vasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/70994670129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/boresojusunugirajej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/99614828282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/nonufuwazojojeripeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4603/4846/files/molofigufof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/kexizosenojonelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9302/4158/files/43992633287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4028/5607/files/bijuwusetijasumija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/babasetaxoguvivowe.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 6

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_off00008eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB3 4872 bytes
SHA-256: a530ae0c6c7570352a5e47c0801360bf12e98978231eb0ccc72a0657d67baac8
font_01_sfnt_off00009f4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F4B 10268 bytes
SHA-256: c8a9292d9c6e0b516869cd3bd19ee64ef8b3de7451cae350b686b33b30199dbf

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