Malicious PDF — malware analysis report

Static analysis result for SHA-256 00dc20b4dc233d60…

MALICIOUS

PDF

34.1 KB Created: 2020-08-18 19:10:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab730ef1d8bf6a77573de2ee85cd37d9 SHA-1: 3ca4f0c11c2271018717b4bf3213e19ce7d91e40 SHA-256: 00dc20b4dc233d603de70a6b594bf1fcecd42c7523d57213f467137a6650eac4
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The primary redirector URL is associated with malicious activity. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking Shopify links, likely intended to mask the malicious intent. The ML classifier strongly indicates maliciousness.

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=new+odia+film+blackmail+all+songs In PDF document text
    • http://files.mychristianoccasion.com/uploads/1/3/0/7/130776082/1749389.pdfIn PDF document text
    • http://wokogega.jonericschafer.com/uploads/1/3/1/0/131071164/mifizusuvegiv.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/1/0432/9403/2025/files/62521742113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/burket_s_oral_medicine_10th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5188/4449/files/ranulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9462/1862/files/zadedudebinug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3851/5095/files/dezakowufikovudoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1993/4628/files/74625140946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/golubofusidenodaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/2716897249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9527/7214/files/7418095791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8789/6488/files/nizunepazuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2338/files/wozatewimurekovukuwegab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/lotek.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 6

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_off00004712.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4712 5508 bytes
SHA-256: 0ceae51078576c325da71eab575c6b94cf2180172814693027388c2db4d0ae01
font_01_sfnt_off000059db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59DB 9996 bytes
SHA-256: a4ec23d8ddaa9aa5f6ffc9691dca09f484be8910ddfe9c880eb57f4eeabec114

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