Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bc34a6098188acf…

MALICIOUS

PDF

160.1 KB Created: 2020-08-19 06:07:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ee304c905f7f4a2a4f349a99b70ee04 SHA-1: 5bfcc9e3aed9c6b096adc3e7df4f14a10fc46c75 SHA-256: 7bc34a6098188acf8f68edf554705d43e7aa17887b95e508d309768f64bd0da1
174 Risk Score

Malware Insights

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

This PDF file contains a malicious redirector link, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK, which points to 'https://ttraff.ru/pify?keyword=bon+jovi+album++free'. The document body, though heavily obfuscated, appears to contain this URL as well, suggesting a lure for free content to mask malicious intent. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • PHP webshell / backdoor source high WEBSHELL_PHP
    The file contains PHP server-side code with the signature of a webshell/backdoor (request input fed to a command/code-exec sink). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
  • 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=bon+jovi+album++free In PDF document text
    • http://files.arizonadpsrp.org/uploads/1/3/1/4/131453897/zoxoxi.pdfIn PDF document text
    • http://files.tx-20081afjrotc.com/uploads/1/3/1/3/131398605/d3f693b63800350.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/1/0431/8376/7713/files/gabrielle_bernstein_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/gba_screen_resolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/94714237814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8126/1466/files/github_cancel_commit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3935/7093/files/java_arraylist_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/71992602217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8179/2664/files/16599824066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/cms_1500_fillable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9078/9027/files/alignment_chart_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7283/1134/files/32626377992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/52210499951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/kiwijajetulivenibinunika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2683/3823/files/monusazune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6636/7895/files/http_www._nexon._net__login_1580.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_off00023aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23AA4 5060 bytes
SHA-256: f105ebe4c1635968ac244c88c9b8c957ff483c61b564bda6c9677497f09eb74f
font_01_sfnt_off00024bce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24BCE 11428 bytes
SHA-256: 492a928e22edfd223efc663dd1b8ce78a6340f0cf99de5c2bc4b510b246e3724

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