Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a62ae2762fa7667…

MALICIOUS

PDF

93.3 KB Created: 2020-08-26 22:05:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7164c32dc61f12a3c871d3d14e95a4bb SHA-1: 096b6a5fb064f5896d16d21461c0feaa36fabff8 SHA-256: 0a62ae2762fa7667cc0dda6a9de7ea64745ce4bfcdb6face1b5318c27430e12c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it's a malicious redirector and part of an SEO link farm, designed to drive traffic to malicious sites. The primary malicious URL identified is https://ttraff.me/pify?keyword=dominios+y+clases+nanda, which is likely used to deliver a second-stage payload or phish for credentials. 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.me/pify?keyword=dominios+y+clases+nanda In PDF document text
    • http://files.hickscharolais.com/uploads/1/3/1/3/131380966/8505752.pdfIn PDF document text
    • http://bavasu.totsandco.org/uploads/1/3/0/7/130776089/zuwir-gilatewil-sisas-fajid.pdfIn PDF document text
    • http://files.bayorchestra.com/uploads/1/3/1/0/131070212/wibakajezijo-jidovezeg.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/1/0428/3564/0487/files/77286853930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0559/9140/files/kukogasevuwetawetazezune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/39054361762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3846/6467/files/918619478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3472/1959/files/eftps_worksheet_short_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dekafarisajanitid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7542/7735/files/posiregivepobukotoxezan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9086/9410/files/49849488497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9892/3427/files/lonano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1326/files/liwixo.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 8

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_off00012672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12672 5088 bytes
SHA-256: 126230a2719cc337f389f196499297722621377c270dd0bfd04676d98a6cef11
font_01_sfnt_off000137ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137AD 15508 bytes
SHA-256: 74bd9d40fd8782c692b7e929253344858077734da530997886ac0d31e53e3e24

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