Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa206f16e848636…

MALICIOUS

PDF

33.8 KB Created: 2020-08-27 12:44:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1212e58fc9767238fceee0e462ce945e SHA-1: 3c3ce1545a0dd1399aa13acf9c050204f46497cc SHA-256: 6aa206f16e8486362396a83dea9b425083a1156c34dfa440a5afec2919c07b15
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) that is flagged as malicious. The document body, though heavily obfuscated, contains the malicious URL and several benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic to lure victims with fake download links. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs confirms the intent to redirect users to potentially harmful content.

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=horizons+6th+edition In PDF document text
    • http://files.cassatastreats.com/uploads/1/3/0/7/130775228/a516620336.pdfIn PDF document text
    • http://files.ctai.ie/uploads/1/3/0/7/130775306/9409589.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/1/0463/7792/6811/files/banjara_dj_naa_songs_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/pimosikezolalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/47236433206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6786/7035/files/fejudujiwalud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1519/8104/files/properties_of_aluminum_alloys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2060/5848/files/auto_accident_report_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29529942485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6595/6760/files/pifevaxolexobefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/17877447672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/dedefoduruwilidoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/kagafemowezis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0663/1833/files/pharmacology_books_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.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_off00004838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4838 4836 bytes
SHA-256: e888a007df0a5602a312e06ce2b0d32b5ead30db772ec94ca64c658322fc5a20
font_01_sfnt_off0000589a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x589A 9948 bytes
SHA-256: ad65271d9642afec31dc298383d2071445c74ffbb15e32a1dabd04d23a62f39f

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