Malicious PDF — malware analysis report

Static analysis result for SHA-256 776a81e1289bfb82…

MALICIOUS

PDF

48.8 KB Created: 2020-08-07 15:54:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68182d414d34f24120bbc34eb09f6d81 SHA-1: 45edd152cb28ddf9b92090d5ae8607e0d10b19ad SHA-256: 776a81e1289bfb8244f08ca4c657dbc208d7f3787697fd6bb750a184f66d5885
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links designed to create an SEO link farm, directing users through a malicious redirector at 'ttraff.ru'. This infrastructure is indicative of phishing or malware distribution campaigns. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest an intent to redirect users to malicious content, likely for credential harvesting or further payload delivery.

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=antonio+vivaldi+spring+pdf In PDF document text
    • http://files.harmonyspaces.net/uploads/1/3/1/3/131380128/pagip-jinuzugugutabo-fekinoguzabaw.pdfIn PDF document text
    • http://files.wkuprecollegepiano.com/uploads/1/3/1/4/131454620/320e47ffbd60e2.pdfIn PDF document text
    • http://files.courtneymillerpilates.com/uploads/1/3/2/7/132710628/d070f4c932c34f.pdfIn PDF document text
    • http://files.wcgme.com/uploads/1/3/0/7/130739119/5484971.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/1/0430/9286/9281/files/fozemijonijonibereko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5982/2243/files/nuvekuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5756/0217/files/78408120922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/42251357911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5733/2895/files/merowegivinomarelugef.pdfIn PDF document text
    • http://zagiku.atlanticpewter.square.site/uploads/1/3/1/4/131437246/003562d9196ca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0135/files/79503369749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/2864635586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/nebavow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5789/5831/files/magofefamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7739/3815/files/21011063931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/57653055686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4299/5367/files/xenavif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4652/5338/files/dotejulos.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 8

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_off000080de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DE 5256 bytes
SHA-256: 7e02235ec8ba83921d33597bd4d3311eaf405986935a020bdde5c073c8d0ea03
font_01_sfnt_off000092d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92D8 10228 bytes
SHA-256: 280ea944c0d522e7c58283bc7f00b6fd519a63064a6fb9196f45b78359fec5ad

Open this report in the interactive analyzer, or submit your own file for analysis.