Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a338332210b793c…

MALICIOUS

PDF

50.1 KB Created: 2020-08-06 21:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8b6f21b981f24bd3e7a75a8bd188da7 SHA-1: 252d89fd6ba730a73d0e2247dc6aa23804e314e1 SHA-256: 6a338332210b793cd8c1d28bab6d26c42d036b8946b457528c68a9fc24ef985c
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to phish users. The embedded URL 'https://ttraff.ru/pify?keyword=reading+skills+notes+pdf' is a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to malicious content, likely for phishing or malware distribution.

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.ru/pify?keyword=reading+skills+notes+pdf In PDF document text
    • http://files.caterpillarspirit.com/uploads/1/3/1/4/131437225/f401ed9e36ef.pdfIn PDF document text
    • http://files.laurenpaigekennedy.com/uploads/1/3/0/8/130814597/mixelobemuzopives.pdfIn PDF document text
    • http://files.haymakerlaw.com/uploads/1/3/0/7/130739651/9109208.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/1/0428/9835/8432/files/48466687054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/gazusujapizafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2556/3801/files/vovuvelokumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2629/2629/files/logrolling_definition_ap_gov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3520/4511/files/cengage_physics_2020_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17844710077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0315/0499/files/18580262749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1065/3338/files/zepotemevijutegidexabun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/61645699603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5234/2184/files/lopor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3701/5719/files/rainbow_table_attack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/explain_branches_of_philosophy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kebiwubinixakagaxirefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/renowo.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 4

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_off0000859b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x859B 5184 bytes
SHA-256: 11944d859e29cefe2ccefd057c780819d75f1d759754c65e0d35d2542b21d1ab
font_01_sfnt_off00009766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9766 10420 bytes
SHA-256: 5556d7c1d4136d09e6d905da46bfe72f4f5f98451b10be845fa042a03cd60f1f

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