Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d303ed507f55e5…

MALICIOUS

PDF

62.8 KB Created: 2020-07-28 01:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07cfde8710356c3a125922dd56b540b4 SHA-1: 994cc719866a6e59e3694f20fa9b9bb1a5f90859 SHA-256: 96d303ed507f55e5e570dd7c1b5b3abfb0aea1df429d629887f21624c23bf493
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, appears to be a lure related to 'psychology of human behavior pdf free', likely to entice clicks on the malicious links.

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=psychology+of+human+behavior+pdf+free In PDF document text
    • http://files.emmaandjasonsayido.com/uploads/1/3/2/6/132695629/xawovobopijasu_dezosimus_buvoti.pdfIn PDF document text
    • http://files.lawyerslendahand.org/uploads/1/3/2/6/132683154/9756614.pdfIn PDF document text
    • http://files.londoncdt.co.uk/uploads/1/3/1/3/131379014/makonugomapufok.pdfIn PDF document text
    • http://files.artworksforkidsstudio.com/uploads/1/3/1/4/131453393/bb39b9.pdfIn PDF document text
    • http://files.thetenderwilds.com/uploads/1/3/2/6/132695200/8474457.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/1/0428/1021/2519/files/wulimorasogolenoniviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/risuwaxovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7700/0611/files/wozepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/94035429359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6478/6086/files/ratumokepefasaxilajiwuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8367/7339/files/babidopelelatoruvapori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0637/7632/files/xurebepizosuvudod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/zobesodaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/saxusup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/18534137940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4518/9792/files/pogavemeder.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_off0000b726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB726 5676 bytes
SHA-256: f67ad78e5864a8d07e2f321e75a6f2043a21aea48f6f431ce9d7483940094496
font_01_sfnt_off0000ca42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA42 10332 bytes
SHA-256: c1f049747f6b798fb7d719f85c5fa099c2d12547ca0ca2baf5f8eb75461e4f44

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