Malicious PDF — malware analysis report

Static analysis result for SHA-256 814128ebcad447d4…

MALICIOUS

PDF

49.7 KB Created: 2020-09-12 00:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 015ccee9bb10bd8804e07cf11f73086b SHA-1: 98a9ab51c0b2286d7eec676345774bb91518999a SHA-256: 814128ebcad447d480267ca06611401329b661f75eccdffe3b13d6ea70088773
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links that point to redirector infrastructure, which in turn leads to further PDF files. The primary redirector URL is 'https://ttraff.club/wix?keyword=visual+studio+code+format+python+code', suggesting a lure related to software development tools. The presence of numerous links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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.club/wix?keyword=visual+studio+code+format+python+code In PDF document text
    • http://jakofafoj.pmteam.ca/uploads/1/3/0/7/130738711/50816c.pdfIn PDF document text
    • http://parisudop.securevisionmediasolutions.com/uploads/1/3/2/6/132680835/rufavanav.pdfIn PDF document text
    • http://files.thecramm.com/uploads/1/3/2/7/132740270/f0f66.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/a9248e_e763a452ec3e481e8ead920f860432f7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6fd45c_e1721187173b478aade4b986e6d7162c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/87a178_a1034392df0045c8aaf539bdec6862db.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_8e08d37e535c43a5b82f4c78f1e535e5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5b9a87_b766f1d231484b769706fed10895d2b3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/665c20_b731972b3d4a4d768a4a4747657a5140.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_7a5744a1b30e48a28ca4e771fb670019.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/67f5f7_56109202cfbf42cf81a558fca79a822b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8588/1753/files/bozifuwufiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5024/6039/files/80759160652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0524/5597/files/76231050676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/black_fathom_depths_vanilla_loot.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

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_off000068e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E5 5460 bytes
SHA-256: 0e9660b832f9f1259245f4a6a4e68e68f9ea96e948d6804a38c8d78c6323a0e0
font_01_sfnt_off00007b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B58 12192 bytes
SHA-256: 4bf310595a888be03c7e451b6b4d22c68de4cbd6c391f53e58e095f6bdba1099
font_02_sfnt_off0000a30c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA30C 16524 bytes
SHA-256: e12927bcd43f280d077d848c6a2458140bd1208675b6924976ed8e54012a164d

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