Malicious PDF — malware analysis report

Static analysis result for SHA-256 75f86041c3bcf11c…

MALICIOUS

PDF

40.3 KB Created: 2020-08-17 13:30:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f1ac47afdc25a6d611c158ef3dba50b8 SHA-1: 45508fb7d85b5428655f85fa7274d30c8568b3a3 SHA-256: 75f86041c3bcf11c4edfea9c068610a531f4699d1d4579ec845422cd35fd9868
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains references to a 'nier automata dlc guide' and the malicious URL, suggesting a lure to trick users into downloading potentially harmful content. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=nier+automata+dlc+guide In PDF document text
    • http://files.yvettephotography.co.uk/uploads/1/3/1/6/131606866/xoxidefoge.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/1/0435/2340/8032/files/bifagosifofebizixukoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/xafuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/husqvarna_350_chainsaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/10293514533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3366/4411/files/pezovasoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/rilalanijur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6032/9637/files/inorganic_nanomaterials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/1116227662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9889/7574/files/ducateur_de_chien_guide_d_aveugle_salaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1915/4086/files/42736913630.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_off000060a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A0 5048 bytes
SHA-256: e05efa385c43d9ac2445ec31fad66603e82da7be5e50dcc31d2d2f077d96aa5f
font_01_sfnt_off000071b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B6 10340 bytes
SHA-256: 5b0ff5ad1194be4829f7e1500112a410e2f3061e299837582527332ac5efa0ed

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