Malicious PDF — malware analysis report

Static analysis result for SHA-256 0547d27fc3100b45…

MALICIOUS

PDF

55.3 KB Created: 2020-08-13 12:42:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fef190e4ed4e4d0fd1a709c80fa42554 SHA-1: 0ebc5a312caf489f6c5ed8edf899786bac7ade2c SHA-256: 0547d27fc3100b45a069020ecc867ef3820f735ffc8c99d5e420678d5f3d3f74
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files, suggesting a link farm or phishing lure. The ML classifier also strongly indicated maliciousness.

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.cc/wb?keyword=all%20out%20cricket%20magazine%20pdf In PDF document text
    • http://porika.ross-gash.com/uploads/1/3/1/3/131383548/janofinan.pdfIn PDF document text
    • http://xasij.vertexflorida.com/uploads/1/3/2/7/132740900/ditomasesidej-dubofuvoki-musopovavobub-dekakomugepi.pdfIn PDF document text
    • http://files.chandalinchamplin.net/uploads/1/3/0/8/130874416/1643125.pdfIn PDF document text
    • http://files.wdfbusiness.com/uploads/1/3/2/6/132695302/wugame_xupujigaxupek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7473/8593/files/sing_to_jehovah_songbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0780/1504/files/air_cooler_working_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6128/4757/files/2100035621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3600/3752/files/1979_chevy_impala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/75459266170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1493/0084/files/hp_4650_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4047/9131/files/adam_smith_theory_of_economic_growth_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/23540526019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/76557273246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9468/6376/files/90182047945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5830/files/65888462979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/pifaludidobazidu.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 1

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_off00008c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C4D 5284 bytes
SHA-256: 0f05df58cea571e06fb41a0d164be16293035224df0432e98591d4e7caf48ecf
font_01_sfnt_off00009e36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E36 10352 bytes
SHA-256: f27a9819be63ee476e9233aadeafb7dd60b951e466b9390ee9cc62a0e9fa602d
font_02_sfnt_off0000c18b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC18B 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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