Malicious PDF — malware analysis report

Static analysis result for SHA-256 c27a7409d8c55b43…

MALICIOUS

PDF

32.7 KB Created: 2020-08-02 13:33:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59df74761df74a98d9c38a1a7589770b SHA-1: 6639ab8cd33c2a4e26216b5299ff3d7930524ee4 SHA-256: c27a7409d8c55b4366cc3d3f23bcfa80d74e010bbb0b1d6777fc23c60eb0414d
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL designed to facilitate the download of ROMs. The document body also contains a similar URL, reinforcing the lure. The PDF also contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation or to obscure the malicious redirector.

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=pokemon+white+2+rom+download In PDF document text
    • http://files.corningfootball.org/uploads/1/3/1/6/131606169/2719968.pdfIn PDF document text
    • http://files.bettysmakingmusic.com/uploads/1/3/1/3/131383823/0ac7579b2c662.pdfIn PDF document text
    • http://files.hallielee.com/uploads/1/3/2/8/132815961/5788720.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/1/0431/0718/8898/files/fewedemalidefoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2331/7662/files/xofiwawawezugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1239/9009/files/harry_potter_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/14803967160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4920/6439/files/97924172302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4347/1003/files/65289781706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/44574662365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3720/2344/files/wajufafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4517/9807/files/4chan_get_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/kibejaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1193/8216/files/savogujikuvirejiduni.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_off000043fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43FD 5176 bytes
SHA-256: d52db37ef84cf359e9a6450be40ea0c6612d00486845da13be7b3014426fa62c
font_01_sfnt_off0000557e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x557E 9608 bytes
SHA-256: 7c2380e5e1f49b3298a43134cd0023d05e4cbfcc265dcc22ee4a1d27f858e2c3

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