Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01c724971c5984f…

MALICIOUS

PDF

40.4 KB Created: 2020-08-05 11:52:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a12978bc0decd1db81f8c35e29ae378 SHA-1: 32c3082b790331c6ec4a95706a2bd542b4e1e28f SHA-256: c01c724971c5984f2a296fabc9c66e7897edecb6565bcf58b442f7560bb4484b
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a book summary and the malicious URL, suggesting a lure to entice users to click. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of redirecting users.

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=awaken+the+giant+within+book+summary+pdf In PDF document text
    • http://files.oliogorrasi.com/uploads/1/3/0/7/130738681/607301.pdfIn PDF document text
    • http://files.scholarshipseason.com/uploads/1/3/2/6/132682936/5008817.pdfIn PDF document text
    • http://files.sportstraydor.com/uploads/1/3/1/3/131397946/187008.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/1/0438/4771/2928/files/luredenapubaxuxorajoraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0454/9531/files/34274293334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4438/0578/files/vugevofiful.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0634/4868/files/85746176128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/nizubufofusibojawateji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/39770800637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/42538674739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/94447846773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/84845533200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3630/9666/files/75771663018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9130/4343/files/stolen_booty_wow_classic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/dekonitidatasoziziz.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 2

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_off00005ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECE 5808 bytes
SHA-256: 84d3b8db1f2732d1c61f20c67e15b203580f9d5f7d8aee104aa25010b969dd15
font_01_sfnt_off00007281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7281 10360 bytes
SHA-256: 52810303199ddabba979ba37aa3b4ed1515544ab95d01ae1e7c8069e54ac7a3c

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