Malicious PDF — malware analysis report

Static analysis result for SHA-256 b36293c02c36b5e9…

MALICIOUS

PDF

32.0 KB Created: 2020-08-24 22:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9fb9b847747da2736544fe4fd312d34f SHA-1: c4394c2e1402137a3fdf4f3be957cc0a109595df SHA-256: b36293c02c36b5e985c8c967c46ea8149b285b0a05fa06fc77ed160334e98860
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a malicious redirector link. The embedded URL, https://ttraff.cc/pify?keyword=font+boutiera+bold, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=font+boutiera+bold In PDF document text
    • http://files.yuliyaosyka.com/uploads/1/3/1/4/131453260/mufogefetopavefanife.pdfIn PDF document text
    • http://files.williamvennes.com/uploads/1/3/1/4/131409761/rojudakita.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/1/0428/2748/1255/files/49554525972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/66822771112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/fazuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/vibofoxuzefifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0629/5201/files/wozuzupikirawimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/40400710770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/fisir.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 1

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_off00003ead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EAD 4736 bytes
SHA-256: 4e13de68f1a0e6026c2f6afc7a190697fd69ae84fdb8b355570bd47f1b9bb583
font_01_sfnt_off00004ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ECB 11136 bytes
SHA-256: 6d1d87651588d5fc5431fac4f7b0f592d9043000114e21bdaaffadb8140d8394

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