Malicious PDF — malware analysis report

Static analysis result for SHA-256 75a72b44ba95a5f4…

MALICIOUS

PDF

32.1 KB Created: 2020-09-18 21:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92bb9cecc2e0cfd474e0663ca4fba267 SHA-1: c5fecd3db864ce3514999b7726b98f9b821f1ed8 SHA-256: 75a72b44ba95a5f4fc478ab77c6994a649a3f82e6bfdd021bbd1555ae2b2ec59
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external sites, including a primary redirector at `https://ttraff.club/wix?keyword=tinkerbell+clipart+silhouette`. Heuristics indicate this is a malicious redirector and part of a link farm, suggesting the document's purpose is to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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.club/wix?keyword=tinkerbell+clipart+silhouette In PDF document text
    • http://files.bostonironsides.org/uploads/1/3/1/4/131407164/5987964.pdfIn PDF document text
    • http://saverin.rvrescueart.com/uploads/1/3/1/3/131398140/zugopero_lapez.pdfIn PDF document text
    • http://files.proctorlutheran.org/uploads/1/3/0/7/130740563/8efd6945.pdfIn PDF document text
    • http://files.amylaurenfloraldesign.com/uploads/1/3/0/9/130969543/4190009.pdfIn PDF document text
    • http://fijenojil.blackgoldwinterguard.com/uploads/1/3/0/7/130738848/wejubot.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/1/0439/1570/6523/files/diset.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/54983331879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9716/0866/files/mezemosaxuvotebizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/99367804260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1284/0862/files/barcos_que_vuelan_imprimir_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/0433/0906/files/super_smash_bros_swf_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6573/8151/files/bureau_credit_reporting_agency.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1241/3851/files/ulcer_dietary_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8802/7556/files/57616523015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6372/9557/files/boxing_star_mod_apk_1._6._0.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_off000043d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43D9 5172 bytes
SHA-256: d5da38043e7fdbc5d3f5d8118486acec2f06a686ac3c78c70f37470fa72f5ef6
font_01_sfnt_off00005564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5564 9008 bytes
SHA-256: 17ecbdfdd126a5328d506aa343e28d5ba4188c480c4420c6822718655cd5a860

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