Malicious PDF — malware analysis report

Static analysis result for SHA-256 692755a3d6a7595d…

MALICIOUS

PDF

72.4 KB Created: 2020-08-19 16:48:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b835aab39e6093bb4e9ffa06054b7d75 SHA-1: 637d60d7524a443179ddaea8d9f3194aaf00d15c SHA-256: 692755a3d6a7595d978bdeb7cde2e5754683018b9b8380d548403fe0fef9b3a5
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) disguised as a free download offer. This suggests a phishing or scam attempt to direct users to malicious or unwanted content. While no scripts were directly extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users, likely for further exploitation or malware 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=championship+manager+season+01+02+free In PDF document text
    • http://files.businessmanagementorganizer.com/uploads/1/3/0/7/130740127/57d8c.pdfIn PDF document text
    • http://files.englishkb.com/uploads/1/3/0/8/130874192/7863734.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/1/0433/6258/2693/files/45018987535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/classic_dungeons_level_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/sheikh_abdul_qadir_jilani_books_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/9986973759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2305/6545/files/zapazovapedewejefuzagas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2439/0056/files/wipebuvuroxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/bayesian_data_analysis_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8722/4214/files/zewuverufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/maminowovuwidivav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0452/5720/files/50485725653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/xegavokoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1566/6840/files/sociolinguistics_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/dvt_management_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1511/7727/files/emerald_tablets_of_hermes_trismegistus.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5EE 5516 bytes
SHA-256: baf51c5a05fae942d6606098d8be801d13e1de7bd14207cbb7ed6c26db60de6f
font_01_sfnt_off0000d890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD890 11220 bytes
SHA-256: 41c9b945a4d090f46f52e088812c438bdc6f41283adf1c168b58722bc24da960
font_02_sfnt_off0000ff20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF20 16164 bytes
SHA-256: f469c5aa689aa4c1965481b78cfaebbf1c3ebdad2306c7067134b7b4aaa0addd