Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c50a283c5e49f6c…

MALICIOUS

PDF

93.7 KB Created: 2020-08-02 14:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 944162b3d008eaf5c9455d6c7c4a6e24 SHA-1: 6bbaaa3323171d5932d4938b5725c5bc193b9772 SHA-256: 6c50a283c5e49f6cb6d05f6c980f9756d070891d081791936bd0b28df4e6cf9a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a known malicious domain, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests a phishing or scam attempt, likely delivered as an attachment.

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.cc/pify?keyword=how+to+edit+tf2+hats In PDF document text
    • http://files.minilivestock.com/uploads/1/3/2/7/132740415/38a223c.pdfIn PDF document text
    • http://files.fastlanenitrous.com/uploads/1/3/1/1/131164479/9187223.pdfIn PDF document text
    • http://files.misssandyssandbox.com/uploads/1/3/1/6/131606861/tixuxew-zimulujedev-worav.pdfIn PDF document text
    • http://files.schoolhouseyogastudio.com/uploads/1/3/0/9/130969489/6244032.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/1/0431/7495/3120/files/26400318253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6970/1280/files/motixutotutebasafuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1893/4677/files/70640296639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/muvovuxineromilavipopibab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/dudazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/pidax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5131/1513/files/posudipixalevezogujere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3524/5216/files/vanabawitikamodifabivilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/28105612008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7143/9001/files/17997651012.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_off00012a1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A1D 5052 bytes
SHA-256: 8ba03b0339b65b1b1bc6f8c5247a9d1b02c50ed8a72abac5138c61c929b8f609
font_01_sfnt_off00013b5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B5F 14864 bytes
SHA-256: 549dcbcf4d7d7bebc31e6feca909560b74a7b5acab6d88e2d5c734bfd5eb8bbe

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