Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d3ff9a97d04400…

MALICIOUS

PDF

55.9 KB Created: 2020-08-12 04:17:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2af0e773735fbbd21ac0044f0989d92f SHA-1: 34becca075a9956f7471a2b37183b66bf6801220 SHA-256: 60d3ff9a97d04400efa1228579eb051a4b059721999744c5dd53c28d1311958d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to an SEO redirector at 'ttraff.com', which is flagged as malicious. The document body and embedded links suggest a lure related to 'Datacamp courses pdf', likely intended to trick users into visiting malicious sites for phishing or malware. The ML classifier strongly indicates maliciousness, and the presence of many external links points to a link farm or redirection strategy.

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=datacamp+courses+pdf In PDF document text
    • http://files.octavesprogram.org/uploads/1/3/1/3/131398291/redan.pdfIn PDF document text
    • http://files.comcomnetworksw.com/uploads/1/3/1/1/131163867/5685308b2c.pdfIn PDF document text
    • http://files.iyhfoundation.org/uploads/1/3/0/9/130969489/zasosuwupoger.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/1/0432/0044/6626/files/zuvuduvagarexixanopotona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7364/2389/files/50080795394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5913/5132/files/zaxopopigaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/14624782299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4837/8280/files/jawaxolitelujezeritojolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1280/8091/files/cablage_automate_programmable_industriel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/adulteration_and_evaluation_of_crude_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5522/files/oxford_read_and_discover_all_about_space.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8118/6971/files/blacksad_amarillo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8309/5459/files/61795006557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/87530563802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0753/1414/files/xujikanovaxubuxefogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/51400530823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6415/5560/files/blagues_carambar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/donnelly_atlantis_the_antediluvian_world.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000069f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x69F8 16424 bytes
SHA-256: 2a3eefc3fbf32de2458e7e6547177b19ce7b8d6ffcd99a4ba3a38a53d9e0372e
font_01_sfnt_off00009da1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA1 5268 bytes
SHA-256: d69174b8511300c33310b5b376b9cbc47d064ce9ca2b9bcdc54e19cd05c33178
font_02_sfnt_off0000af73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF73 10120 bytes
SHA-256: 52845ecdf0c1b322decee295922d8919aa414e890d4ab5c50711a174d9e1ceec