Malicious PDF — malware analysis report

Static analysis result for SHA-256 950752800c46e649…

MALICIOUS

PDF

45.9 KB Created: 2020-08-14 11:41:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1cce1af26895a81b638dea6ec4876ae SHA-1: 50b7940df53f99fc531b6300980efa8684953208 SHA-256: 950752800c46e64906d04eb1ff352ee22b06b5fc863aba829add09b81d919e1a
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or malware distribution attempt. The embedded document body, though obfuscated, contains a URL that matches the malicious redirector identified by heuristics. The presence of numerous links, including one pointing to a malicious redirector, indicates an attempt to lead the user to harmful 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=raw+may+7+2018+bleacher+report In PDF document text
    • http://files.reliablealliancefinancialllc.com/uploads/1/3/0/9/130969079/956b1fc0ad89e22.pdfIn PDF document text
    • http://xezixari.soul-serenity.co.uk/uploads/1/3/1/3/131381521/3626455.pdfIn PDF document text
    • http://files.libera-translations.com/uploads/1/3/1/3/131384436/cd317323.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/1/0434/6393/4109/files/makuxerabunetes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7346/0637/files/chemistry_of_alkyl_halides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/online_attendance_register.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/zolotis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/52704243085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0060/2525/files/dufosufuxexuresuzatoxur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2021/4681/files/apostles_creed_new_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7913/files/65555498880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7160/2849/files/jepabunaguvexabozereperu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4016/7320/files/leguri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.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_off000073df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DF 5936 bytes
SHA-256: 133c0a7babfc6b10eaba9ae030415078ac6f2cb57f84bd0925f43602ce50763d
font_01_sfnt_off00008816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8816 10128 bytes
SHA-256: 879d3005ec3ebfbc87289a98af885945f6865651c23f8c0157b474b5fa5859b6

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