Malicious PDF — malware analysis report

Static analysis result for SHA-256 7da5748f1a3a5e3d…

MALICIOUS

PDF

45.7 KB Created: 2020-08-03 23:27:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b886ab44e896f118d2585516768febd SHA-1: bd8421130a961956a111ede3c25a917688ebdda6 SHA-256: 7da5748f1a3a5e3d03eb56b36e422ee3c85b016705ca0d7e84fc0e0f2250955f
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and appears to be a lure for educational content. The presence of multiple Shopify links suggests an attempt to disguise malicious activity within a seemingly legitimate context. The primary attack vector is likely spearphishing, directing 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=physics+class+11+ncert+pdf In PDF document text
    • http://files.ancientwavestudios.com/uploads/1/3/1/4/131483685/kinawa.pdfIn PDF document text
    • http://files.emrglab.org/uploads/1/3/1/4/131406558/nazajalila.pdfIn PDF document text
    • http://files.philosophiesofeastandwest.org/uploads/1/3/0/7/130775334/4455138.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/tukunazura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1397/9812/files/90629120859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8784/6806/files/wuwigurikijivakuvir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bokowolexom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/8169827607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/essential_math_for_data_science.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/29230234785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9252/4702/files/lawanopipuvisupoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/govutunidutudoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0432/files/vimemoxenene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3490/1671/files/black_mage_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7706/6140/files/58767654145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/nawebosonexe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6782 5396 bytes
SHA-256: 2fcd0e54350e3d19a773dc918167d603d1576af9aad00e9c2869ffd0ef955a51
font_01_sfnt_off000079e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E7 9980 bytes
SHA-256: 789707741365d078014862295d420e3011ccb7a3cfebfd6b42c529aba59fb2fe
font_02_sfnt_off00009c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C50 3280 bytes
SHA-256: 3cedb121a3ead546434c09d1888acfb165857c97b5030ae5cde75df9f2fae9e2

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