Malicious PDF — malware analysis report

Static analysis result for SHA-256 95d2eae83d93c5fa…

MALICIOUS

PDF

52.2 KB Created: 2020-07-31 03:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 35ce122b3ed47f2d31d079952649502e SHA-1: 15c6828a2398b72e4f3ea632f7d58456b815295b SHA-256: 95d2eae83d93c5fa4078dbfba7145993c7afa80532950f603c7cff1e74260a9a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Angularjs 7 book pdf', suggesting a lure for users seeking content. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports a malicious intent to redirect users to harmful sites.

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=angularjs+7+book+pdf In PDF document text
    • http://files.cuestacollegerodeo.com/uploads/1/3/1/4/131483550/f518ae417.pdfIn PDF document text
    • http://files.sierissa.com/uploads/1/3/2/6/132695543/podapuvumapumaja.pdfIn PDF document text
    • http://files.didsburyjuniors.com/uploads/1/3/2/6/132681824/maxipupamekep.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/1/0433/7015/2088/files/54657238529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6797/2513/files/kuvobekofimebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4522/2557/files/19444747225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3558/8770/files/lefeponufelexowipuxosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6694/7744/files/45789323779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/mipipomagenasixuzoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/posemamusowowuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6354/8831/files/91333311343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3594/9218/files/7048731984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9892/3427/files/92060821497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5677/5839/files/vatulil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/31882329548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5692/2777/files/majefivodugudolu.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_off00008d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D54 5196 bytes
SHA-256: 8fe3b6ce4783a86111cdc0b103956a5c46c4c0ec0c63408ff6d921a05e1c79fc
font_01_sfnt_off00009f07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F07 11060 bytes
SHA-256: e2117cf494559d0ec4386f770a57d3b50aae042ce43d062ed05c053e16063d83

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