Malicious PDF — malware analysis report

Static analysis result for SHA-256 168049c88b5f359d…

MALICIOUS

PDF

42.7 KB Created: 2020-08-16 20:40:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c802a17916a1b58e62885aea36966c3 SHA-1: 220eb735c5e9bb25fa5c3649a03260c2c15c6263 SHA-256: 168049c88b5f359d707b1d53c792fab84ee0902f88b5ea8c7c26844a5f96e026
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.ru/pify?keyword=turn+off+adaptive+icons+android', is flagged as malicious and associated with SEO link farms, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains references to this redirector and other PDF files, reinforcing the link farm tactic. No scripts were extracted, but the presence of malicious links indicates a likely attempt to redirect users to a harmful site.

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=turn+off+adaptive+icons+android In PDF document text
    • http://weban.stepintoyourjoy.com/uploads/1/3/1/6/131607163/6d486.pdfIn PDF document text
    • http://mobilo.yazdab.com/uploads/1/3/1/1/131164250/d14db.pdfIn PDF document text
    • http://files.greentarafarm.com/uploads/1/3/2/7/132740296/11a18c42a79a6d1.pdfIn PDF document text
    • http://gobatiso.rockfishgrovefwbchurch.com/uploads/1/3/1/8/131856333/tegotovo_jibotajub_zumelatibuxo.pdfIn PDF document text
    • http://files.pickygrouchynon-cook.com/uploads/1/3/1/3/131398184/4358038.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/1/0432/0201/9487/files/29929103760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/romafeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3288/files/nixurilugefij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2674/2421/files/82728632734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7525/3910/files/abstract_reasoning_questions_and_answers_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/6763400636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3196/2535/files/fmcsa_hours_of_service.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5089/2454/files/solidworks_tutorials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5965/7374/files/risadupuvelamuwesujeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/basics_of_computer_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7099/4085/files/lojidunogizip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7632/9373/files/sovoziboru.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_off000069c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69C0 5128 bytes
SHA-256: 4a06b6bfba27ecd52ab5acaa1ea5eda612ea0aa3b4e598c6406b13481e2b4a97
font_01_sfnt_off00007b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B48 10204 bytes
SHA-256: 2dcd290ba66e2533588db8028797067ab099e7428da6791e497d1b9b300530a7