Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9d4a1a7c9679d9…

MALICIOUS

PDF

53.6 KB Created: 2020-08-03 17:18:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e67799d876be787578878468ddf4d1d SHA-1: 723cfa8e3da2a385c6a571be5dd0415cf3e86e6d SHA-256: 9d9d4a1a7c9679d9bfa10b91d845d35d9b5205227d51d5c0cea36284f7cefabd
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a book and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm heuristic further supports the malicious intent of distributing links.

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=capablanca+endgame+book+pdf In PDF document text
    • http://files.oxfordmomsandtots.com/uploads/1/3/0/7/130739883/24b0f7.pdfIn PDF document text
    • http://files.jamesbrearley.com/uploads/1/3/1/4/131406403/kojilitobu.pdfIn PDF document text
    • http://files.ryladistrict7255.com/uploads/1/3/1/4/131406840/b33ea21b27.pdfIn PDF document text
    • http://files.fortlive.com/uploads/1/3/1/4/131438464/102399.pdfIn PDF document text
    • http://furalubi.mattclifforddesigns.com/uploads/1/3/2/6/132695492/504edee33b.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/1/0430/6678/5949/files/13975664836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mufowotipopugisafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/40844214560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8706/9348/files/zulagozuvatedatenifuzazuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0883/5234/files/62057596115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7313/files/46156724346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5431/8239/files/timothy_bradley_net_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0944/9884/files/81617071207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/rarubejevijisimimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1805/7885/files/busexolawopiluzezikoxif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/45911348602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/pagonaxanatimapetukef.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_off0000951a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x951A 5308 bytes
SHA-256: 6aa6c01b1cb112dcde36a4ff70609a5f18acf59c2323100f9cf4256a097fc07e
font_01_sfnt_off0000a71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA71A 10088 bytes
SHA-256: 2c21193bb288c11cafc61d54cc39f972b8522d4dfd2dc0054701299966daf9d6

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