Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aa715a637093520…

MALICIOUS

PDF

47.9 KB Created: 2020-07-24 16:55:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3364cce12ec72c6d69ec8d3a77cb56c6 SHA-1: 2d048011d60f446510aad84536580d6a7858e6d0 SHA-256: 9aa715a637093520e44e73e29bbe5d983d25d5da41814a76d966344b494b9243
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL associated with a redirector. The document's content, though garbled, suggests it is disguised as an 'Oracle database installation guide' to lure victims. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic 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.ru/pify?keyword=oracle+database+installation+guide+12c+release+1 In PDF document text
    • http://files.thinkcreatediscover.com/uploads/1/3/1/1/131163953/rivitojija.pdfIn PDF document text
    • http://files.pjcsoco.org/uploads/1/3/2/6/132681391/5445716.pdfIn PDF document text
    • http://files.capturingmomentsblog.com/uploads/1/3/0/7/130740464/xelomatawa.pdfIn PDF document text
    • http://files.ambcboston.org/uploads/1/3/1/8/131871480/9916473.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/1/0435/6587/5359/files/35576346574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/logebuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/27022133619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/35643450417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84593422723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/20746760987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6660/4182/files/puzotibilaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/zogug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4683/8176/files/90742323116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/lifavegujonododig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/vokevosodogapa.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 5

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_off00007cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD3 5340 bytes
SHA-256: 8f524179b511f29ab4fd03bc8c9f928fe50fa623aa7ec4e905b84ca42bf344f0
font_01_sfnt_off00008f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F05 10156 bytes
SHA-256: 8adc7a44b2bd030dc4ed6a1820b0ba4ebd8874cc8723cc2d002a074fcbc767f0

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