Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3511bd08eee0a3…

MALICIOUS

PDF

44.9 KB Created: 2020-08-07 05:26:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b082ae70092e71afc691fdaadeb06b2 SHA-1: 560e1efc138d767204ed5f24483e9847e66ac22a SHA-256: 7e3511bd08eee0a342b9f1f04c18ad08227fb42b9978dbbdd5f0473b94777996
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service, suggesting a link farm or phishing lure. The ML classifier and critical heuristics confirm the malicious nature of the PDF, specifically flagging it as a redirector and a link farm. The document body, though obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=naturally+occurring+toxins+in+food+pdf', which is also flagged as a malicious redirector.

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=naturally+occurring+toxins+in+food+pdf In PDF document text
    • http://files.newsotterleeproject.org/uploads/1/3/1/0/131071082/4195327.pdfIn PDF document text
    • http://files.baleupfeeders.com/uploads/1/3/0/8/130873895/7cb7fcd617dc9c.pdfIn PDF document text
    • http://files.kosherwimbledon.com/uploads/1/3/0/8/130874582/1ceebc486.pdfIn PDF document text
    • http://files.thepamperedpuss.com/uploads/1/3/2/6/132695258/zixawapa_golejasopus_donojab_baboku.pdfIn PDF document text
    • http://files.bigblueword.org/uploads/1/3/1/8/131858661/vejesu.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/1/0431/8907/6117/files/pediatric_anesthesia_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nezaneseku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5551/2738/files/active_passive_voice_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3417/1813/files/hernia_abdominal_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8576/5535/files/nanumigix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8419/3696/files/tiroxujopumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5544/7201/files/2020_calendar_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8187/5112/files/wetherspoons_menu_breakfast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7696/0924/files/kosijolosobuwadox.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 6

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_off0000718c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718C 5460 bytes
SHA-256: 0173dee08cd76d35af735e0864b7e13d15a4f82767fd102f53f0ea6cc38dbe45
font_01_sfnt_off0000844c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x844C 10108 bytes
SHA-256: 250099b57afbbb353733588e84af2d1fa912bfb5094bbf1064d9afb69f4e9ac0

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