Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c6d339feab51588…

MALICIOUS

PDF

44.9 KB Created: 2020-08-08 09:37:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1dbeafee4a668caa66e6a96f2ce25ea9 SHA-1: 242dad3e4646ba0f60cb180c956aaefb99e092df SHA-256: 5c6d339feab51588553dd5b258a37c93d24b625d5820f0119a29c86ed0d6d121
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service that is known to host malicious content. The document body and heuristics indicate a lure for free downloads, likely a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to malicious infrastructure, potentially for further exploitation.

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.cc/pify?keyword=dark+psychology+101+book+pdf In PDF document text
    • http://files.mindfulmoves.net/uploads/1/3/1/4/131437885/sagavowan.pdfIn PDF document text
    • http://vosik.mtalamasleal.com/uploads/1/3/1/3/131398140/ratovunetume_rewurukuzupo_fupoxofosixik.pdfIn PDF document text
    • http://nipusi.bexleynas.co.uk/uploads/1/3/1/8/131858685/8875236.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/1/0430/9568/7328/files/tutorial_on_java_programming_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0841/6165/files/jogubodawafobiled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5951/9394/files/rafemimekawedonudifotujiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/jutegatinelanitud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1095/6196/files/countable_and_uncountable_nouns_list_food.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7554/1919/files/avast_activation_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2940/4567/files/kejukiluturavinerura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/belivatovumowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3730/2679/files/96098753908.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_off000065c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C9 5916 bytes
SHA-256: 12f45e759398c9e78740accc5c498b6401b058b8aafe178e8e926d57252f23de
font_01_sfnt_off000079fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FD 14004 bytes
SHA-256: c55a6fdbd9fc648f5ee5409ae48b14de0a496b9a139d5432be4e81d16a161aba

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