Malicious PDF — malware analysis report

Static analysis result for SHA-256 f514c14a05a05b76…

MALICIOUS

PDF

39.7 KB Created: 2020-08-22 08:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 164b59df795ae59404e0358169826694 SHA-1: 3c8e9ca298d7fe3b28739f3837ca2cdfce117e5b SHA-256: f514c14a05a05b768b3b40d8b55c901c2845f12769240980cab158f73f3e4e06
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded URLs, with one identified as a malicious redirector (ttraff.ru). The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, and the presence of a malicious redirector indicates an attempt to lure users to a harmful destination.

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=dl+tag+full+form+in+html In PDF document text
    • http://files.thetrashtalkblog.com/uploads/1/3/1/4/131438532/260a7f.pdfIn PDF document text
    • http://files.radikes.com/uploads/1/3/2/3/132302982/nifoloxuvoduxa.pdfIn PDF document text
    • http://files.wickedladiesbeecompany.com/uploads/1/3/1/4/131406717/5192167.pdfIn PDF document text
    • http://files.bpesfoundation.org/uploads/1/3/0/7/130775635/pagokafexaxita.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/1/0431/2183/6193/files/canadian_citizenship_application_minor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2105/7700/files/19746685619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9535/9637/files/high_earners_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/70778597223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8634/7417/files/cdmx_capital_social_uniformes_y_utiles_escolares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/bewawawokimafufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/79264087560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/68923979955.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_off00005553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5553 5000 bytes
SHA-256: ef5ae91dc3243b0b06244783a14bfdf16920bc05518b23ad1522a1966a282821
font_01_sfnt_off0000662a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662A 14164 bytes
SHA-256: a0a3311f84d277fd86595b1d2f7a3c8d9dbd1c0ec47aa2c624e52a2990d562c5

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