Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbdf57f861092295…

MALICIOUS

PDF

69.0 KB Created: 2020-08-12 12:09:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67c984f6cc1a562197e06dc4b12f5de8 SHA-1: 365161c8c5ad5e000e0cee4efa0ed52ed6fbfd76 SHA-256: cbdf57f8610922950a192d7f79013f307776d2369c25e4f45ac089ddb8a095c7
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing indicating a PDF link to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=beijing+platform+for+action+pdf. The document body itself is heavily obfuscated and contains references to the malicious URL and numerous benign-looking Shopify URLs, suggesting a link farm designed to obscure the malicious destination. No scripts were extracted from this sample.

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=beijing+platform+for+action+pdf In PDF document text
    • http://files.tranquilpalmsmaui.com/uploads/1/3/0/7/130739274/8604543.pdfIn PDF document text
    • http://daxena.jreelzmusic.com/uploads/1/3/1/1/131164250/1994364.pdfIn PDF document text
    • http://misofaz.christopherkerrayer.com/uploads/1/3/0/7/130775413/8723fc08.pdfIn PDF document text
    • http://files.apollonasglykas.com/uploads/1/3/0/7/130739520/827606.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/1/0432/5713/5257/files/79620585481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8951/1068/files/java_array_copy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/4457293311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3033/0016/files/65445270508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6472/8483/files/categories_game_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26225030347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3195/2536/files/41150835913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/vexab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7368/3100/files/lasoranuvumazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/76944335883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/california_7th_grade_math_textbook.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9E6 6976 bytes
SHA-256: aef733b9e26d2cbed8591baee7a6248ea4e1d11ccc3d60ac86b302625c09f08a
font_01_sfnt_off0000d1a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A7 5424 bytes
SHA-256: b2b3fd26f9d2db50c335131921c6f2c34fb8a311a25d67263f942cf3ed38c046
font_02_sfnt_off0000e400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE400 10140 bytes
SHA-256: 226ce6f26256584d7bad4adf0bfe3e75950e48562bb7263b9d6c002ea0306c87

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