Malicious PDF — malware analysis report

Static analysis result for SHA-256 79e9464550cf6196…

MALICIOUS

PDF

42.8 KB Created: 2020-08-21 14:04:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a36b1c1c29a0e901a9346627b9f2cd43 SHA-1: fade1ab3700fc59343160842ae81ce8820f8cd35 SHA-256: 79e9464550cf6196635e3e60a7f16dc8a0bfa74378941844fa977add2e194a36
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains references to 'exercises pdf' and includes the malicious redirector URL, suggesting a lure for users to download content. The presence of a link farm and SEO redirector indicates an attempt to distribute malicious content or phish for information.

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=bowflex+pr1000+exercises+pdf In PDF document text
    • http://files.gabbyspetsitting.com/uploads/1/3/1/6/131606798/a210edc0f0f90.pdfIn PDF document text
    • http://gojirupo.newworldparadigms.space/uploads/1/3/0/8/130814788/de12a9e78f13d.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/1/0434/9699/7030/files/chakravyuha_audio_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7500/files/tewuxudumateli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3797/4950/files/book_of_biochemistry_by_satyanarayana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3313/3209/files/45053298485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5262/8118/files/nattamai_songs_masstamilan_isaimini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/businessman_movie_songs_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/cobb_bbq_recipe_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3019/8937/files/rexifofewikiriwinefude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8334/1728/files/4399203323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5732/3925/files/pawuwape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/50684961705.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 3

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_off000068de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DE 5340 bytes
SHA-256: de5ba5cd14d4205468d1d4a1fc881f589dc7094f8e958d45b7ffe05e18966ada
font_01_sfnt_off00007b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3F 10260 bytes
SHA-256: 188bf1696dd3a4f262201e181c8130c65bd255d1f63467109c139b5bc735a579

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