Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e8e7554b23fd822…

MALICIOUS

PDF

42.6 KB Created: 2020-08-27 21:06:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18e3bf43ea85183283c924c0dbbbe6ae SHA-1: 7ae70bdf4153bbfee188f678cff81ce43bafea2b SHA-256: 8e8e7554b23fd8228ddd4d26ad09e6e94a94406338b9d981bebab89811dbe1ce
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, https://ttraff.ru/pify?keyword=acquisition+accounting+deferred+tax+asset, is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the malicious URL and several other URLs hosted on Shopify and other domains, suggesting a content-driven lure.

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.ru/pify?keyword=acquisition+accounting+deferred+tax+asset In PDF document text
    • http://files.settingsfalmouth.com/uploads/1/3/1/0/131069764/lurofexedunuko_dekodilone_jizuravu_zujasidibibe.pdfIn PDF document text
    • http://jodaxiw.impulsivelust.com/uploads/1/3/0/8/130814187/dereruna-gesemikevuwo-nevoz-vonomarono.pdfIn PDF document text
    • http://files.shopbohosouth.com/uploads/1/3/0/7/130775551/midawepukake.pdfIn PDF document text
    • http://dirurorob.artartmargaretcameron.com/uploads/1/3/0/8/130874565/waxaro.pdfIn PDF document text
    • http://files.thesportscourtblog.com/uploads/1/3/0/9/130969357/e55339.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/1/0428/8000/8355/files/blackboard_collaborate_launcher_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/8904/3112/files/oxford_dictionary_free_english_to_punjabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8560/2721/files/80758624125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1771/5361/files/wavuxewikagaziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/61882718007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3848/1320/files/31720842932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3637/files/kazegexavugewuzexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7432/1560/files/ethiopian_grade_9_english_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6332/7385/files/tally_erp_9_voucher_entry.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_off000067f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F6 5340 bytes
SHA-256: c41cb75a97b8845fa6f6fbe488deb91ae3ae48751a8dbd7b0fe880df6bbfb480
font_01_sfnt_off00007a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 10424 bytes
SHA-256: 4d1be0db91e30d1a0589c203043dd09f3ea64ab85a958c83801d0b9f500bb966

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