Malicious PDF — malware analysis report

Static analysis result for SHA-256 64c6089a374acc18…

MALICIOUS

PDF

63.5 KB Created: 2020-07-30 18:30:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ef728692bf40823ab78a3f32cb25a4d SHA-1: a1ad1f3d5d6d71b3a58429419bf98e982bbbbc7f SHA-256: 64c6089a374acc188d5bae549d7adcf01e46b344fc3fa2cd7a64376963f0381e
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on domains associated with SEO link farms and redirectors. The primary redirector URL, https://ttraff.com/pify?keyword=neutrinoless+double+beta+decay+pdf, is flagged as malicious. This indicates a likely attempt to lure users to malicious websites, potentially for phishing or to serve further malware. No scripts were extracted, but the PDF structure and embedded links strongly suggest malicious intent.

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=neutrinoless+double+beta+decay+pdf In PDF document text
    • http://files.christianpensel.com/uploads/1/3/1/0/131069886/xawimokixixo.pdfIn PDF document text
    • http://files.kelseymedeiros.com/uploads/1/3/2/6/132682676/198ed651381.pdfIn PDF document text
    • http://files.bbartbyangelica.com/uploads/1/3/0/8/130813732/xabevi-xokidepagelele-rikenureliw-fugijada.pdfIn PDF document text
    • http://files.azhealthpath.com/uploads/1/3/1/6/131606159/vutunakasorexex-xabofapogakoxi-bemufo-fuparofaw.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/1/0433/0687/7080/files/72619586694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8651/9208/files/53923279452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/bulagifabesarex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/kanulijinizitanigodegowad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/wokobuxamemilogazukunixor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0408/2851/files/94115204708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/559093088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5061/files/75557329538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1687/0298/files/gezejakupone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5502/files/16736175209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9464/7719/files/97605055148.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a3dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3DC 5240 bytes
SHA-256: e34e07da06ace70368d2029dd97a817667671debd323ec7cffdd024d0b586564
font_01_sfnt_off0000b5c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5C2 10960 bytes
SHA-256: 34d86dc9481ad38d1a1c7ac9fbf8ebaa60acd69c36bec2e3f45b1eebf3a758d9
font_02_sfnt_off0000db80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB80 16036 bytes
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550