Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a321494eaf16673…

MALICIOUS

PDF

57.8 KB Created: 2020-08-05 04:46:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56fb23de50ac7f7c71a5c1e00efe3f28 SHA-1: b0f2b1d81c14c3bf0243e7b71f65c68edc7bc612 SHA-256: 0a321494eaf166734e067a53cd760c39981ee35605d8086e3ed5eae76b6adf24
194 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to a redirector URL (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to disguise malicious content as a legitimate document. The ML classifier also strongly indicates 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=28+creencias+adventistas+pdf+resumen In PDF document text
    • http://misexo.spectrumproject.org/uploads/1/3/1/6/131606094/topojogipelire.pdfIn PDF document text
    • http://files.solosprinter.com/uploads/1/3/0/8/130813528/6179309.pdfIn PDF document text
    • http://files.unraveledportland.com/uploads/1/3/1/1/131163540/673295.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/1/0430/8759/3632/files/59909489441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/gidakuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/48047510176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/maslow_s_hierarchy_of_needs_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5937/9357/files/xifizebafexajuperatitebuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/nunujatinividega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/54250155968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6440/0798/files/9938124850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2981/5705/files/rejidibidowujoxilavodab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6078/1465/files/82830981008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/32776947234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/66001728590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4061/1226/files/sotirinisenajit.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 5

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_off0000a4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4B5 5560 bytes
SHA-256: cb8dc90d7d001e1b62dfcdbbe833328d7e5d90448f998aed08dc46142068e040
font_01_sfnt_off0000b790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB790 10260 bytes
SHA-256: 8c1afa07f794888dcf2f4760f5b986dba8582f08c2ad5d419f7f64ca692fde86

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