Malicious PDF — malware analysis report

Static analysis result for SHA-256 b708b4019bc5bbf2…

MALICIOUS

PDF

42.5 KB Created: 2020-08-02 19:20:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9fdbbc833ef3d767dcaf1781479f9e8c SHA-1: f857878922635bf7e6a4854a863fcf5f5a4d93c3 SHA-256: b708b4019bc5bbf2585aa9d771749e48b15a45b3a849dad23b3136c5738028ae
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains a reference to 'action figures price guide' and a URL that aligns with the malicious redirector. The heuristic firings confirm the presence of malicious redirector links and a link farm structure within the PDF. 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.com/pify?keyword=action+figures+price+guide In PDF document text
    • http://files.triciashope.com/uploads/1/3/0/9/130969742/naporis.pdfIn PDF document text
    • http://files.octopushairdressing.co.uk/uploads/1/3/1/0/131071037/4020924.pdfIn PDF document text
    • http://files.boehle-fotografie.com/uploads/1/3/0/7/130776268/mesudiwe.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/1/0435/3612/2008/files/nadekufumawidemasab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/90560438698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1131/7658/files/61046189056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/jenejifusozaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1537/9866/files/94165072320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/8885129528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/xuwesibefuwopula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7383/6958/files/roll20_drop-_down_prompts_calling_other_macros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/83261809790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4186/5384/files/48873193101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9908973296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4035/9068/files/benibuvabe.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 4

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_off0000666c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666C 5068 bytes
SHA-256: bdf0e7fdaad6ab6bf9fc35288b2665d24c15c476cc184a06b935770103817eac
font_01_sfnt_off000077c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C8 10856 bytes
SHA-256: c78e37352e76cfe768c3d1297e856d337ce7ce6d8793acb71c77b91afebd375f

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