Malicious PDF — malware analysis report

Static analysis result for SHA-256 62690d5676f1f17d…

MALICIOUS

PDF

46.4 KB Created: 2020-08-19 21:54:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24f498d878584d9cea792118030ab042 SHA-1: 0d00f21705933a0a4078f4eebf6576dededbd7cf SHA-256: 62690d5676f1f17d20eb16be68fc788d4a5d246c63b82e49c8c96299cc207bb9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to a redirector service that ultimately leads to a malicious URL. The document body, though heavily obfuscated, contains text related to a game and the malicious URL, suggesting a lure for users to download potentially harmful content. The ML classifier strongly indicates maliciousness, and the presence of redirector links points to a phishing or malware distribution scheme.

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=game+ps3+god+of+war+4 In PDF document text
    • http://files.sakivintagekimono.com/uploads/1/3/1/4/131437119/gifukix.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/1/0437/1972/1115/files/calculus_by_james_stewart_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4854/files/agriculture_information_and_training_centre_nepal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6473/7433/files/25996672461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9983/2995/files/kiwejoxolazikasiwunarel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/bari_italy_tourist_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5295/1704/files/practical_skills_in_biomolecular_sciences_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/french_definite_and_indefinite_articles_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7900/files/jipofedupasasafogofejava.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 1

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_off0000767d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x767D 5704 bytes
SHA-256: a74989a8efce68d93f402195370b7e03c1425db6be1bbed9c4b608b481da9954
font_01_sfnt_off000089f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F1 10308 bytes
SHA-256: 54a93e8562ee9b5111d57ca11abb85b647b81bd20bc04ed825cef41fd46de369

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