Malicious PDF — malware analysis report

Static analysis result for SHA-256 67c174b8b1bc814b…

MALICIOUS

PDF

39.6 KB Created: 2020-08-15 14:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4664e1f076115fc100bfa4f580f9155 SHA-1: e81a9be0af243ba7331b6ed46596107415e585ac SHA-256: 67c174b8b1bc814b0418889fcd87c119aa402825d49d4c318ae5d01cfc142ecf
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains text and URLs suggesting a lure for a '7th day adventist bible study guide' which redirects to a malicious URL. This indicates an attempt to trick users into visiting a compromised or malicious website, likely for phishing or malware distribution.

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=7th+day+adventist+bible+study+guide In PDF document text
    • http://files.rothbartnorthshore.com/uploads/1/3/1/4/131482819/e728a687.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/1/0431/6083/0116/files/pikinabakoxebobote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/loxifafatodefaropegug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0209/1929/files/korean_alphabet_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41758367329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/44417825655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6133/0591/files/wujokenazisufulobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85484739365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0635/3823/files/paulo_coelho_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/letter_of_reprimand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/baraxoke.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1D 5276 bytes
SHA-256: e3d17140ad8653a37d05100eb64ce50843dc2f8bd0c37e3523c711860f670419
font_01_sfnt_off00006f11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F11 10088 bytes
SHA-256: e68c375db695f73d2cba1bd42db2a0bfda76a91949e265d804709a0f8da610a6

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