Malicious PDF — malware analysis report

Static analysis result for SHA-256 b328df45f9bda47c…

MALICIOUS

PDF

45.8 KB Created: 2020-08-06 21:12:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee2e3e23d2987af312d8f89a04f57fc2 SHA-1: b7bec83abe4b6d0d213ed54c00fb55246132a331 SHA-256: b328df45f9bda47c6ff681ea78405ea1528e3fddc2f75200d682301e5fd728ae
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with the primary malicious link being a redirector to 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Business plan pdf francais' and the malicious URL, suggesting a lure to entice users to click on the link. The ML classifier strongly supports the malicious nature of this PDF.

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=business+plan+pdf+francais In PDF document text
    • http://files.premiumpropertymanila.com/uploads/1/3/1/3/131379249/vidaw_zewawik_dosixuxo_rezatidumikaxuv.pdfIn PDF document text
    • http://files.inspiringeducation.net/uploads/1/3/0/8/130813730/3753693.pdfIn PDF document text
    • http://files.reelfriends.org/uploads/1/3/1/0/131070336/b9dddb77e01.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/1/0428/5913/5132/files/reverse_a_string_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/kewogoguruzebumeboxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/22147284353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/texobup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4965/files/18426935906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4936/9252/files/91280940555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/99693426326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/94828061046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/95541939045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5025/1941/files/17163816588.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 3

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_off000075ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75FF 5200 bytes
SHA-256: de743a95d0e6801bd937e2aac073ff2642c66adec14adc7b7a4c2415e28b6d28
font_01_sfnt_off000087bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BF 10128 bytes
SHA-256: 5f5c6b8d901779fb6c077e3af04d43b3e5896e0b89d25169408c61fa2aafd1e1

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