Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c7c0be3413090ce…

MALICIOUS

PDF

51.6 KB Created: 2020-08-27 12:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a04cd3d2c71ce8b5bc3eeb2cc73bb5b SHA-1: 66056b0ece838ed6c35dc82db59a7aa2adc231fc SHA-256: 9c7c0be3413090cec5726906666f536240ea93fc7250e53ab183f3a00e0b8431
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=kinobody+warrior+shredding+program'. The document body, though heavily corrupted, contains fragments suggesting a fitness program lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to malicious infrastructure.

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=kinobody+warrior+shredding+program In PDF document text
    • http://files.juliakitokirtley.com/uploads/1/3/1/1/131163957/satorenemap-zezutulemu-xunodunor-fixibakalabum.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/1/0432/5962/5627/files/vipopawamitisof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6900/4190/files/future_continuous_tense_worksheet_for_class_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9799/6960/files/certificado_medico_cdmx_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/50168762460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2703/6322/files/sekovisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/ribuxilasonovoxikibonasun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4637/9426/files/a_bad_mother_2018_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6225/5013/files/93267274392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8477/4552/files/flow_chart_template_microsoft_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5017/1554/files/banotume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/42739052471.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_off00008aaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAA 5644 bytes
SHA-256: be4845458d2456d65dbf48597cd9a57e20174861c697924bbefb8efa8498c359
font_01_sfnt_off00009dce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DCE 10560 bytes
SHA-256: 2548d7c0ce36ff8519233bad807f253657876c9992204d07d6d665ae61eaa974

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