Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a36cacceae9b603…

MALICIOUS

PDF

39.9 KB Created: 2020-07-31 17:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6acaa13928e4870cfd466e46c9c252a5 SHA-1: 49e50ddae226cc106ec4d4e4ded0cb5fbecc33c1 SHA-256: 5a36cacceae9b60348576b92dcba10628fa24dda290d3e466e5ae1c123d58a21
194 Risk Score

Malware Insights

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

The PDF contains multiple links to an SEO redirector, including one directly in the document body, which ultimately leads to the malicious URL https://ttraff.com/pify?keyword=how+to+hear+yourself+on+discord. This suggests a phishing or scam attempt designed to redirect users to potentially harmful content. The ML classifier strongly supports the malicious verdict.

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=how+to+hear+yourself+on+discord In PDF document text
    • http://files.rockridgewoods.com/uploads/1/3/1/4/131437660/kemarusulef_xulexerawazi_kotuvofiraje_wugunusofuli.pdfIn PDF document text
    • http://files.otterhaus.com/uploads/1/3/1/4/131407102/4d7b6822d75bbc.pdfIn PDF document text
    • http://files.essenceofbeautydublin.com/uploads/1/3/1/6/131637057/9362341.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/1/0433/8152/2599/files/53320503905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2808/5912/files/niwexexil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5234/2184/files/torimubelotefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4280/6680/files/9014395697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8397/files/jaloregozasifesimanazep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/34680517374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0835/0615/files/5673164487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6045/3785/files/xarowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/logopazunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6117/2631/files/45623576663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/62056687944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1044/0859/files/xewerukigip.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_off00005eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB1 5264 bytes
SHA-256: 543ae15648b0dbaa7f798e8bbda573e5c6e1291a18239a04f1f44085b310e5c6
font_01_sfnt_off000070a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A9 9828 bytes
SHA-256: 62fbc35eaaa9f53b114c5205b3ab766e5eaa4bc1150d32cf4cab79f768fcd79b

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