Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8fa53eeb8454a9f…

MALICIOUS

PDF

42.8 KB Created: 2020-08-24 00:31:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7a02334705bd1dd8cf223498f5f33bd SHA-1: 32c74136b52d473e35580ce73611c78267f239d9 SHA-256: e8fa53eeb8454a9fbe80b37accc166558d737b685dd994b13a9a98efa64e827c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link to 'ttraff.com'. Another critical heuristic indicates a PDF link farm, suggesting SEO poisoning or a similar lure. The document body contains text related to 'Google local guide annual gift 2019', likely a keyword to attract users. The primary attack pattern involves redirecting users to malicious infrastructure via embedded links.

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.com/pify?keyword=google+local+guide+annual+gift+2019 In PDF document text
    • http://files.en.animalprograms.org/uploads/1/3/0/7/130739814/vedununuz.pdfIn PDF document text
    • http://rudiwo.covingtonproductions.com/uploads/1/3/2/7/132740264/3504331.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/1/0431/9064/8996/files/lovif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/17959282947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/alagey_alagey_song_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4074/3329/files/18080828046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/76309057254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3492/5463/files/88254858435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/advanced_accounting_mcqs_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/93989107496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0146/1410/files/7716549836.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 2

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_off00005bdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDB 5308 bytes
SHA-256: 035e7b921818080e2455614a95673ad5f6e1e3bb5bed2971293ca2e26ec6ceb3
font_01_sfnt_off00006e07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E07 10132 bytes
SHA-256: 3da945ba4d36b4095a67e98b8c0f53cd16ec96e2ab3fc662094d49bc4fb5f44d
font_02_sfnt_off000090bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BD 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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