Malicious PDF — malware analysis report

Static analysis result for SHA-256 8264518b3570e04d…

MALICIOUS

PDF

40.6 KB Created: 2020-08-19 21:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e30cbafb6a19b07474fe8981285edfee SHA-1: 39d8504176f5c2c32be8cdf1fa385ca4132801d3 SHA-256: 8264518b3570e04db9668fc38237d42047723e0fadc296f67a9351740be5bdfd
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body also contains the same redirector URL, suggesting a phishing or scam attempt to trick users into downloading potentially malicious content. The presence of a download button lure further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=best+internet+er+for+android In PDF document text
    • http://files.patriksoderstam.com/uploads/1/3/0/7/130776790/sumawelabofowoje.pdfIn PDF document text
    • http://seriwe.huffmansflowersofthefield.com/uploads/1/3/0/7/130739892/jopegutoro.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/1/0432/6329/5654/files/boulevard_of_broken_dreams_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8714/2818/files/49433053847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9919/3501/files/xegavufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4689/3730/files/91915524418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4038/1855/files/traditional_border_design_vector_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/74922915143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8393/0527/files/air_pollution_pictures_and_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/3352/8229/files/felenemadasal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6451/7023/files/langman_s_medical_embryology_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3579/5354/files/maponudilefede.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_off00006103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6103 4916 bytes
SHA-256: 975266e4d0f29a49c61daa8ea67167d778d09eca4f2fcfe301313078cf7ade51
font_01_sfnt_off000071c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C2 10512 bytes
SHA-256: aca2148e5f8e4779dd3e60cfaf0980e253dfafd1b2e3987a6d9b60aaff0119e1

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