Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f1afd1b27c38107…

MALICIOUS

PDF

58.8 KB Created: 2020-07-30 05:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83dc33d7514073cd2559caabe28a7612 SHA-1: c042d946406872a1e7f59df5e105d307ac136bcc SHA-256: 1f1afd1b27c38107649e1b95c0c7c4e9144ee9d3c30c28b7dfd1f6fe86597817
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm or SEO poisoning attempt. The primary malicious URL identified is ttraff.cc, which is used in conjunction with a keyword suggesting a lure for users searching for specific PDF 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.cc/pify?keyword=protozoan+parasites+of+man+pdf In PDF document text
    • http://files.sw-publishing.co.uk/uploads/1/3/0/7/130775025/fawasujogukemuw.pdfIn PDF document text
    • http://files.fencestile.com/uploads/1/3/0/8/130874360/59364eb77d4.pdfIn PDF document text
    • http://files.larryweingarten.com/uploads/1/3/1/8/131856162/1246474.pdfIn PDF document text
    • http://files.esperanzastudio.com/uploads/1/3/1/6/131606563/fad1c2e93.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/1/0437/0923/5353/files/11112328124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7937/7830/files/50452222246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7948/3044/files/botuwobekevibudetifut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/44609186417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0497/6548/files/7715125289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/65506744979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/8322140123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/50460036403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3396/0341/files/40383350384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8151/2613/files/wuruzafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/resadegiputitiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3750/7240/files/pisowupivorenurasanevir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0200/3615/files/64843291953.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 5

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_off0000ab1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB1D 4996 bytes
SHA-256: 0a2fc9fb3be0d54fd7c9b9f244837a6ea72d602044afc27a4402735ab282237e
font_01_sfnt_off0000bbf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF6 10072 bytes
SHA-256: e0ac1db553af6ffd293dd69982d222859666e3f10480bc48c755b548c9b6c48e

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