Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a46ecea9e7800c1…

MALICIOUS

PDF

47.0 KB Created: 2020-08-03 10:12:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26d69ae92d3c0b6dad7372306dcdd2a4 SHA-1: 50f630e3958f032acf404bd01f32c6164cc84614 SHA-256: 0a46ecea9e7800c16cf065af324af7742b8f41d73e42e13fba0b3891fcd58910
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded URL points to a known malicious redirector, which is likely intended to lead the user to a malicious site under the guise of a document download. The ML classifier also strongly indicated maliciousness.

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=discrete+mathematics+johnsonbaugh+pdf In PDF document text
    • http://files.laminatedturningblanks.com/uploads/1/3/1/4/131483027/39e8a0.pdfIn PDF document text
    • http://files.morganmckeen.com/uploads/1/3/1/4/131454816/5300176.pdfIn PDF document text
    • http://files.joyinparenting.com/uploads/1/3/1/3/131384300/b6cac3fb050ed01.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/1/0428/0628/0355/files/vofilusinuselo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/korejofaginokosag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/34445856210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6187/8687/files/85643591865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/tewopebaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3864/4123/files/83264492337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6577/7059/files/ffx_remaster_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9462/1862/files/fourth_grade_rats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/zimademirisubexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/niligowijejolivomuwaluzid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3909/6986/files/tokawigixon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/gexetelipax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/19726974310.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 4

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_off00006e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E10 5752 bytes
SHA-256: 630fb6063b5af33209f728e04bcdd8d47e283308dd1442d7a90352f9d65ae38d
font_01_sfnt_off00008182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8182 14760 bytes
SHA-256: 961fa43ef3c80ce8e26aa5f5a6746af536283cd2daa218af14da943c488a7aed

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