Malicious PDF — malware analysis report

Static analysis result for SHA-256 86d8d35e91ecf463…

MALICIOUS

PDF

51.2 KB Created: 2020-07-28 15:35:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2652b0457e8d59dbff280ac647c499e SHA-1: f7c070040782a69f5723b4f6e30207171cc294da SHA-256: 86d8d35e91ecf463778a1b126327180083076e44e191903203544b6739d7df1f
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'ttraff.com'. The heuristic firings indicate a deliberate attempt to create a link farm for SEO purposes, likely to phish for user credentials or distribute further malware. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to exploit users through a malicious attachment.

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.com/pify?keyword=wavelet+image+compression+pdf In PDF document text
    • http://files.mackeiganmarketing.com/uploads/1/3/0/8/130873839/8386677.pdfIn PDF document text
    • http://files.bizoncustoms.com/uploads/1/3/0/7/130776725/nazurolegoneweperez.pdfIn PDF document text
    • http://files.michellentherapy.com/uploads/1/3/0/7/130775275/redure.pdfIn PDF document text
    • http://files.finksdeli.org/uploads/1/3/1/4/131406749/digamak-razat-zonaruxixezeso.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/1/0433/2745/5382/files/55308149244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1087/5815/files/lonowedifitesedoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/50813645820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/febufolilux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5081/0014/files/22219342301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0499/2421/files/27164429602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3294478915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38970143778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5592/2856/files/detofiwajeworonafogadara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/86176896935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2652/files/31303508033.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 5

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_off00008ace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ACE 5336 bytes
SHA-256: 6066b3e4f11cb967a9d48be3327ace49852015dc5e1251077f2337d59ab30a20
font_01_sfnt_off00009ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE4 10096 bytes
SHA-256: 84d17b8fb2845c8e41a68b4b882cf622c5ed893407e5604d75ec3f30eef62d30

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