Malicious PDF — malware analysis report

Static analysis result for SHA-256 78476c05b5846ad5…

MALICIOUS

PDF

76.3 KB Created: 2020-08-14 05:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea58cf82b07ac05ef1548576d1fd9270 SHA-1: 5df728ab6227ea6d4a7dbfb8f3e559c61d82dcc8 SHA-256: 78476c05b5846ad5e8cbcd174e9ffe76d2b440f6dca8170b1ee65cec89417867
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme. The presence of a large number of external PDF links suggests an attempt to create a link farm or distribute malicious content.

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=speech+writing+format+isc+class+12 In PDF document text
    • http://fomag.elliemartino.com/uploads/1/3/1/3/131379246/7537338.pdfIn PDF document text
    • http://pudozu.hyojinlee.com/uploads/1/3/0/7/130739704/wujez.pdfIn PDF document text
    • http://files.brazossunrisefarms.com/uploads/1/3/2/7/132740997/ea0d50e52d6705.pdfIn PDF document text
    • http://titope.frankpaino.net/uploads/1/3/1/3/131383664/7a57ad9d.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/1/0431/6292/7263/files/ridgid_air_compressor_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/wexadarovapet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6855/5415/files/jufasutorineserotagow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/baxumaxamajure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/foremolobotevuludaxuninu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3174/9031/files/71169997612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9944/2590/files/sweetbitter_stephanie_danler_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4971/2806/files/30389135326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/english_opposite_words_list_a_to_z.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/zoxosidojemorudawupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6901/files/fidefodimaluf.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 7

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_off0000ec74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC74 5808 bytes
SHA-256: 03c525d6ca48c50966c814ce1774e7dd078d3bc3c4e572b85fd6da12018d1e98
font_01_sfnt_off0001002a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1002A 10576 bytes
SHA-256: 13590bdcabea49b1ba81ab11ecdef296d80c2359968bc55b9c30198eed46c0e6

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