Malicious PDF — malware analysis report

Static analysis result for SHA-256 0730888433fc4447…

MALICIOUS

PDF

40.9 KB Created: 2020-08-21 16:16:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce701d74a5b16f5125eabe5123383131 SHA-1: 81d7c8e28eb3b643c39d6f1b994a2b588a317dbe SHA-256: 0730888433fc4447cd6d175d6bbf5005b05facfd44d7372e87756a45a0f38242
194 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical alert for linking to known malicious redirector infrastructure. The document body contains text and embedded links that lead to a redirector URL, which is part of a link farm designed to phish users for free downloads. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is https://ttraff.cc/pify?keyword=diffusion+occurs+because+group+of+answer+choices.

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=diffusion+occurs+because+group+of+answer+choices In PDF document text
    • http://tononibif.momspantrykitchen.com/uploads/1/3/2/7/132740708/f850908a.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/1/0430/9726/0192/files/mogilefuvazofalinuvaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3916/9429/files/80461591041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6423/files/xikop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2031/9893/files/27797257693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/47970694630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7198/7861/files/18231261586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0763/1782/files/43938446524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2554/5890/files/rubomenibu.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_off00006208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6208 5476 bytes
SHA-256: ea9072e7e6994fc6089784f34c941f00907928054c64b19c3e531109ebb971b3
font_01_sfnt_off000074b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B4 10112 bytes
SHA-256: 8bb12b1f342583bf2efdd5cde4fcd22005131e660fb932f220bbfe6dd2be6e36

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