Malicious PDF — malware analysis report

Static analysis result for SHA-256 87fadaa9529f393e…

MALICIOUS

PDF

39.6 KB Created: 2020-09-19 12:15:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 709985436ef42d41193316fdb5785ee7 SHA-1: 4bdc0d57be3200ea83519126840d8eb697f1481b SHA-256: 87fadaa9529f393e5b4513a691acdad39b24569145cf03ff1219454bc0740c4a
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector to a malicious URL, indicating a phishing or scam attempt. The embedded link, 'https://ttraff.club/wix?keyword=manual+to+automatic+transmission+conversion+kit+india', is identified as a malicious redirector. The document's structure and heuristics suggest it is designed to lure users to this malicious site, likely for credential harvesting 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.club/wix?keyword=manual+to+automatic+transmission+conversion+kit+india In PDF document text
    • http://files.bfhaircollection.com/uploads/1/3/1/8/131871740/fevanireda_xizoxadexovu_lafuzapakubi_puzebaleloxa.pdfIn PDF document text
    • http://files.delavinadesignsco.com/uploads/1/3/1/4/131407530/e95cec0.pdfIn PDF document text
    • http://fevitefus.travevolution.com/uploads/1/3/1/4/131407370/9df89fbe63c7d28.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/1/0432/3672/0798/files/cost_of_samsung_galaxy_s6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/law_of_reflection_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6557/2514/files/proform_505_cst_treadmill_manual.pdfIn PDF document text
    • https://01996c94-7bb7-4c50-9f5a-6680bf1e7d6a.filesusr.com/ugd/bfbc46_92b1c27b04b04025898e78a8b825a4fa.pdf?index=trueIn PDF document text
    • https://33c80f2b-0aa2-45b9-8ac4-8933e1a51095.filesusr.com/ugd/3fc21f_7400665c113a4cd5a95ffb4a68e1823a.pdf?index=trueIn PDF document text
    • https://1e3c3633-038b-4054-9150-f71a827dc7b8.filesusr.com/ugd/8a419d_9d5a4ce400e043189d854c9e23502808.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/compound_complex_sentence_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2262/5431/files/damodarastakam_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/makogupitenebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1363/6259/files/tch_trang_file_online.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D49 5212 bytes
SHA-256: cf16d5b1fde552829f13123639ee546dd5a8e8a5470e1547bd4d43148d166f1c
font_01_sfnt_off00006eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFF 10088 bytes
SHA-256: 8f483a30456ab67741568993654315f58b7615ff553592e4c4ddd2ff6c095679