Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9cc9c19437b2b03…

MALICIOUS

PDF

41.8 KB Created: 2020-08-10 13:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37f4d5352e82f4fdea6ad5ebbb69ef4d SHA-1: 9beb26d26bebd518c6626c472b3f377213ee9676 SHA-256: c9cc9c19437b2b0304e144350845f881e192f6fea9ce5dd503dee0996bde6fad
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify but point to a redirector service (ttraff.cc). The document body text, though heavily obfuscated, contains the lure "National geographic magazine pdf" and the malicious redirector URL. The ML classifier strongly indicates maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of links to known 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=national+geographic+magazine+pdf In PDF document text
    • http://jupobidol.donsellmaninvite.com/uploads/1/3/1/4/131438667/9056228.pdfIn PDF document text
    • http://files.premiumwrapsandtint.com/uploads/1/3/1/3/131384401/6142559.pdfIn PDF document text
    • http://files.theramblingrebels.com/uploads/1/3/1/6/131606630/miterunolusogagizop.pdfIn PDF document text
    • http://jojuw.art63lynch.com/uploads/1/3/1/4/131406436/vivew.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/1/0430/4050/6009/files/wesevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0431/1190/files/77469251919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3040/4502/files/15702476939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/zeduwosovuzatozixanazum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/basic_programming_language_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/99015469354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1263/5298/files/merumedumeduwalazavuferu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9639/9265/files/87644342742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/vobitipuborulafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/54225330325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xawifakupubegezixezo.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 5

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_off00006607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6607 5408 bytes
SHA-256: baad6571da94039aed4a55cbc23d79b10452240867e499c9971926a83b2131bd
font_01_sfnt_off00007847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7847 10028 bytes
SHA-256: 9603c7c1c330c63f4044ab6b50035a52ff83188738d52146b9e9263494a9a3bf

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