Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b2689b08445fbb0…

MALICIOUS

PDF

82.0 KB Created: 2020-08-11 17:58:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1e78b6014d7890025f8c2a53b061ef2 SHA-1: fc5d1114ffebd85da3b6cde49fb59d4a15e18962 SHA-256: 3b2689b08445fbb0b768654d61318ce213ff8675a28c38a95b56ec03fa351851
194 Risk Score

Malware Insights

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

The PDF contains multiple links to SEO redirectors, with one prominent URL being https://ttraff.cc/pify?keyword=teoria+normativista+del+delito+pdf, which is flagged as malicious. The document body, though heavily obfuscated, contains references to the same URL, suggesting an attempt to trick users into downloading malicious content under the guise of academic material. The ML classifier strongly supports the malicious nature of this PDF.

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=teoria+normativista+del+delito+pdf In PDF document text
    • http://wovipo.uclacogsci.com/uploads/1/3/2/6/132695384/8143094.pdfIn PDF document text
    • http://vulitak.oceanpinesmotel.com/uploads/1/3/1/3/131382406/polobinizaxasim-tiwewunalexeke-tubeluzutezirib.pdfIn PDF document text
    • http://files.discoveryelectricbikes.com/uploads/1/3/0/8/130813885/9239740c2.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/1/0428/3557/4943/files/98252661387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5648/6807/files/bowen_mathematics_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/pusufasatuvirilinon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1555/9573/files/44013724339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6305/8333/files/mujuxazinumezimoruzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5602/files/tubojafetiwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/7769746910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/73796641590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1215/3766/files/tedosokudimuvite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/euphonium_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/6215201749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6372/8545/files/55095670270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/lorelulanegizivulivoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/9967262181.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 7

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_off00010310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10310 5196 bytes
SHA-256: 3a03263c4849978b29faa9685fc9c01c47d50457e6a734d699cefd3afc2f40ec
font_01_sfnt_off000114a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114A6 11796 bytes
SHA-256: d34f2ecea40970edd34f5c0264abdfb241d3a972df49c0e50a117adc0fe14741

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