Malicious PDF — malware analysis report

Static analysis result for SHA-256 3245134d8c862c8f…

MALICIOUS

PDF

39.0 KB Created: 2020-08-18 15:11:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 674416eed052dedc32386abaabe9363b SHA-1: 2aafe9e245bff332c8155a687a0bb8f5ef2c8268 SHA-256: 3245134d8c862c8ff0beb93c4656ab4bcc53974a2a54b88e0445c26dccd25ffa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links redirects to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains the same malicious URL. This indicates a clear intent to redirect users to malicious infrastructure.

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=hundreds+tens+and+units+free+worksheets In PDF document text
    • http://files.hcwellnesscenterandspa.com/uploads/1/3/0/7/130739081/rukatofo.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/1/0431/0577/9863/files/26090524748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/veturelazafoguxatizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9349/8787/files/ganpati_atharvashirsha_gujarati_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/cool_powerpoint_templates_for_business.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6467/8817/files/free_website_templates_for_web_hosting_company.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4782/8133/files/mac_addresses_manufacturer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0437/files/call_blacklist_apk_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/dofebonoligato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3540/7014/files/nikon_d5200_manual.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 2

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_off00005b72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B72 5080 bytes
SHA-256: 263be91399c65594e8711c6d20b6edcaf8661ce4dd3331ba28583f8fb9a6a4c8
font_01_sfnt_off00006cbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBF 10204 bytes
SHA-256: daeb44ed7d9d78e75d1cefb7641e93b5992d1a2902f5a91b54317f641b43f27b

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