Malicious PDF — malware analysis report

Static analysis result for SHA-256 3208a51eb87dce0c…

MALICIOUS

PDF

40.9 KB Created: 2020-08-02 21:32:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41e71ff42ffd895cdf95c0199e5da093 SHA-1: 824c0e22fc28fb2a0a254975781f90b65b157017 SHA-256: 3208a51eb87dce0c350818353fc0a53624f7a3202397dbb2bae00ea7323b4eb6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure for a technical document. The primary intent is to redirect the user to malicious infrastructure.

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=electromagnetic+fields+wangsness+solution+manual+pdf In PDF document text
    • http://files.stefankehlenbach.com/uploads/1/3/1/4/131437987/59b786f4fbe301.pdfIn PDF document text
    • http://files.aerospectech.com/uploads/1/3/1/3/131380213/180540.pdfIn PDF document text
    • http://files.partoencasamujeressabias.com/uploads/1/3/0/7/130775714/11e2e31.pdfIn PDF document text
    • http://files.perception-percepcion.com/uploads/1/3/1/6/131606125/4530865.pdfIn PDF document text
    • http://files.cometsbaton.com/uploads/1/3/0/7/130775025/2785875.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/1/0428/4170/2567/files/84757359941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9196/7652/files/sukoledokulasefamuvafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/lujibaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/sosuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5319/5165/files/hex_code_for_white.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2707/1127/files/rojudigetivuvironitanoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9784/1054/files/fuxopano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6310/6968/files/5661858536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8436/5476/files/24655585414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1361/0392/files/mibubusupisumebexuja.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_off00005cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF4 5524 bytes
SHA-256: 9193f2a60e09fe5f7fda092977ba2dca54ba41191736b8a46fce6264df309a7c
font_01_sfnt_off00006fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBF 11740 bytes
SHA-256: 1b02612e19fd8083cfc0f1e8edd104f3cf48c08774ca64ddb7e4f50d8a2bd097

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