Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d40a128ff63d5ae…

MALICIOUS

PDF

45.5 KB Created: 2020-08-10 16:13:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52e72df099917c0aa5573535a12c6a99 SHA-1: ac40d72ccae763d9eb726355688b7600aff26007 SHA-256: 0d40a128ff63d5aea933ccdb4700040ac176814d18df6334c31580e729f23d6c
194 Risk Score

Malware Insights

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

The PDF document contains numerous links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=belapur+housing+pdf'. The presence of a large number of external PDF links suggests an attempt to manipulate search engine rankings or distribute further malicious content. The ML classifier also strongly indicated maliciousness.

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=belapur+housing+pdf In PDF document text
    • http://files.kelliannmorgan.com/uploads/1/3/1/3/131398095/8432248.pdfIn PDF document text
    • http://files.bellaembellishments.com/uploads/1/3/1/3/131381078/898ef56537.pdfIn PDF document text
    • http://bilopafup.rickyllamas.com/uploads/1/3/0/7/130776436/1177732.pdfIn PDF document text
    • http://files.williamsofflint.co.uk/uploads/1/3/1/3/131398430/bodetawizufonu.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/1/0430/1992/7713/files/kekifijuputatuxiwimarobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0647/3886/files/sivorepokojoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1912/4382/files/62328682871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9713/7056/files/sefilupub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/how_long_is_this_youtube_playlist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/49844245114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/furuzet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4622/files/37984892343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/foxeravifotikolibaven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6287/8618/files/bejemevuronifob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/49504685580.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E52 5352 bytes
SHA-256: 881bfb8c95ef9470f47a991540a861b18fbed516d101b378db89f2616a846fa4
font_01_sfnt_off0000707c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707C 9908 bytes
SHA-256: 4614bb0d9fbf12a3ddcc200d37dc9245ab8cc9e4c8c34d6cb1e62aa400f2d423
font_02_sfnt_off00009296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9296 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1

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