Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9c630e42712887c…

MALICIOUS

PDF

38.7 KB Created: 2020-08-23 01:44:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92b2484621e66e7c5dc1de1bad386a8d SHA-1: 7e474b8f2c8dbbb264ff76c889d141b1899837db SHA-256: f9c630e42712887c55dd8f73f395f25cddf66a6fc0a27095127598b6024f4c30
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure for a game guide. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm for SEO manipulation or to distribute malicious 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.com/pify?keyword=dude+simulator+3+guide In PDF document text
    • http://files.universitychurchofchristtyler.com/uploads/1/3/1/4/131437977/dapujam_kijibatikin_vonegilirafem_midikul.pdfIn PDF document text
    • http://files.franciscanfoundation.org/uploads/1/3/0/7/130775825/kizomimora-gojelobowi-podexodi.pdfIn PDF document text
    • http://logezo.snohomishvalleygolfcenter.com/uploads/1/3/0/9/130969596/4326953.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/1/0438/5452/8677/files/ielts_band_9_writing_task_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/certificato_anamnestico_modulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7930/6135/files/bunobipabisunesidapisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/john_deere_la115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/5498643459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4486/4149/files/befolinavefifodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9388/5089/files/87995898230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3962/9218/files/95289272734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2926/5574/files/java_8_update_171_64_bit.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 4

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_off00005996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5996 5308 bytes
SHA-256: 2c515f00b5105e30c7fbb0b95a82fe65afa6cf7dd9da30eb015ea78ef2806151
font_01_sfnt_off00006b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B8A 10192 bytes
SHA-256: a1dd8730d171045232ff264e1dd76518a7694ea7d4067ec36eaa7b6fb7874243

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