Malicious PDF — malware analysis report

Static analysis result for SHA-256 a63e2bce40e484b5…

MALICIOUS

PDF

40.9 KB Created: 2020-08-20 20:40:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a363e577ce09db27fa5ce62be0d5b1d SHA-1: 403e918ca9aee9a8e5867ced3183f6b0fc0b1c64 SHA-256: a63e2bce40e484b590ed11cc59e16686e2144507ce43ff225bf58532733496c4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, creating a link farm. One prominent link, https://ttraff.cc/pify?keyword=decision+tree+flowchart+template, is identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious. The presence of a malicious redirector URL suggests an attempt to lead the user to a malicious site, likely for phishing or malware delivery.

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=decision+tree+flowchart+template In PDF document text
    • http://lofagukiz.with-jill.com/uploads/1/3/2/6/132695454/ee406a92.pdfIn PDF document text
    • http://files.boisdarcreations.com/uploads/1/3/0/7/130775987/menatejugofaf.pdfIn PDF document text
    • http://files.pianistic-elegance.com/uploads/1/3/1/4/131483305/43624.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/1/0431/7007/0687/files/muduforugugogedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2049/9620/files/b_tech_subjects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2735/6056/files/nuwuxewokonejilena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/waneroroteluweximetufese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5464/2853/files/52506388507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/38942462501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/zidifomisaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8268/6362/files/civilization_iv_beyond_the_sword_strategy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/34387806545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/86233449832.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_off00006252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6252 5348 bytes
SHA-256: cd1c1dc2067ce2e681620cbf5a472e7c70571ad61b5c163b932ab6bf31c5f841
font_01_sfnt_off00007463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7463 10104 bytes
SHA-256: d95c14e9b572d718630ee36204753324a15081dfc820f61dd66236248818fd82

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