Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcb3e6820b7c55c2…

MALICIOUS

PDF

39.9 KB Created: 2020-08-01 23:09:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2bb56d2939d82e6d778fe4f1e297ab2 SHA-1: 7655e0c48608304e43e07dc2fb787f47a4e230b9 SHA-256: dcb3e6820b7c55c27d3e8da2d37fcc743ccd2b933c3c0c3e7464eb6e96b74422
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high ML score and the presence of a link to a known malicious redirector. It also contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text but includes the URL https://ttraff.cc/pify?keyword=pokemon+guide+book+pdf, which is a critical IOC.

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+guide+book+pdf In PDF document text
    • http://files.dagmarpopp.com/uploads/1/3/1/3/131379740/poruvapejesamolo.pdfIn PDF document text
    • http://files.betweenheavenandearth.org/uploads/1/3/1/8/131857650/xenere_sikarazas_fosafi.pdfIn PDF document text
    • http://files.abstractmachina.com/uploads/1/3/1/0/131070374/xazusiletawese.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/1/0433/1667/4713/files/37111795595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2762/6134/files/82225552047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3881/0010/files/fikezozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4844/9701/files/69930042603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1059/6765/files/62699498462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/32508111590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/43086010113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5180/3033/files/xenopopazilipegikasezuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4738/6264/files/togokox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/27986576737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/24582715982.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 7

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_off00005c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C87 5048 bytes
SHA-256: d05ec057a8e1813036ffbf0d1c9a5e221c802d37e28585966e87f89e9fc69280
font_01_sfnt_off00006db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB1 10788 bytes
SHA-256: f8988ddd462bd7f0c56f46b41f8199a78b4c37a8c4b4e0e7d95a67175e6fe6d8

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