Malicious PDF — malware analysis report

Static analysis result for SHA-256 e91efbaa2f45da1e…

MALICIOUS

PDF

54.7 KB Created: 2020-08-17 13:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67e1a0ec346a0f2bde2bfc5624d1b565 SHA-1: 84b46e2bd715359ce3934316508c3682981186d2 SHA-256: e91efbaa2f45da1e78388a0611565d5ffb1b036bad3d43907a7015029968aacf
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary URLs, 'https://ttraff.cc/pify?keyword=betagro+annual+report+2018', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Betagro annual report 2018' and the wkhtmltopdf tool, suggesting a lure document. The presence of numerous shopify.com links and other unknown URLs indicates a link farm designed to 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.cc/pify?keyword=betagro+annual+report+2018 In PDF document text
    • http://files.prepstep.biz/uploads/1/3/2/3/132302764/liwupadisojix.pdfIn PDF document text
    • http://files.beardensbackacre.com/uploads/1/3/2/6/132682829/ad85eb91.pdfIn PDF document text
    • http://files.crjartwork.com/uploads/1/3/1/3/131379608/4104096.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/1/0431/8923/9969/files/88730751496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/87130905764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/sally_sallon_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/jupojarogofukufesima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8604/4572/files/kenmore_elite_smartwash_quiet_pak_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8837/1107/files/minimally_invasive_spine_surgery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/76483551857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9906/8318/files/bijirod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9275/3049/files/20487695121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/analysis_and_design_of_algorithm_tutorialspoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/9488590010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/trumpet_classical_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/duferilexezeresikazipar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6282/0005/files/zabejuxikisepisil.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_off0000982b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x982B 5376 bytes
SHA-256: 914ef544ae64944308e753abafb315ca1de7ff30262a9e67661168921de21e0d
font_01_sfnt_off0000aa84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA84 10372 bytes
SHA-256: 9d64162d0237cf4b82ed3a7dd082689c1554a95a4b39a9c0b802da0989ea79e9

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