Malicious PDF — malware analysis report

Static analysis result for SHA-256 959330e04b43206e…

MALICIOUS

PDF

57.1 KB Created: 2020-07-30 22:46:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af50651f8821780e3f3e297797fa04ec SHA-1: 1ca673bc74d4b2892008f40cfeebe4289b066ba1 SHA-256: 959330e04b43206ed740c6b308fbf364aa0f4dbe07b6f14345c816c4b84f3139
202 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, suggests a lure related to 'Java design patterns tutorial'. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to distribute malicious content. The SE_INVOICE_LURE heuristic further suggests a deceptive intent, possibly to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=java+design+patterns+tutorial+with+examples+pdf In PDF document text
    • http://files.elginparkathletics.com/uploads/1/3/1/4/131406413/xikudenaw.pdfIn PDF document text
    • http://files.sailingcruisingscotland.com/uploads/1/3/0/9/130969481/regodewu-wawanoruko.pdfIn PDF document text
    • http://files.cninc.org/uploads/1/3/2/7/132740479/5324237.pdfIn PDF document text
    • http://files.okstructures.com/uploads/1/3/2/6/132681665/tokesipimilum.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/1/0431/2956/9429/files/pezavukekovokozapavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/22055474806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/2120923966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32808714247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4700/0983/files/josovezogefodatupewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/durojipun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/22129213709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/6965210923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/3375025395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51031200676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/9108618329.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_off00009aa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA7 5548 bytes
SHA-256: 7ae447dcaf48dcada90f36ee3707274f749c8b2752c470ac2d94acc3cc682420
font_01_sfnt_off0000ad6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD6A 12908 bytes
SHA-256: 7a4bd3a58f523b48d0badf3611b33dc54c0709f999f42b048b4916ae9fbbe961

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