Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be0ddefec5e03fe…

MALICIOUS

PDF

36.6 KB Created: 2020-08-01 14:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c88a395dd97f5bdf1d09dcfbdddc701a SHA-1: 95cc817897605003b5f15456cf1847ee1e7f6a1a SHA-256: 0be0ddefec5e03fefd5e69d6f3b4b9cbcb261dc477f831e55d4a1868ac8e8ecc
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, suggesting it's part of a link farm or SEO manipulation scheme to distribute malware or phish for credentials. The document body text, though garbled, contains keywords like 'Steel construction manual 14th edition pdf' and a URL, reinforcing the lure. 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.com/pify?keyword=steel+construction+manual+14th+edition+pdf In PDF document text
    • http://files.soleistictouch.ca/uploads/1/3/1/4/131453618/5584907.pdfIn PDF document text
    • http://files.beattieartworks.com/uploads/1/3/1/8/131856435/gebanal-gomafezuti-tepelivigij.pdfIn PDF document text
    • http://files.thehumanempathyproject.com/uploads/1/3/0/7/130739509/bc4576d737b.pdfIn PDF document text
    • http://files.keyscientific.net/uploads/1/3/0/9/130969577/3814619.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/1/0434/6124/7138/files/zujefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7689/4372/files/92774048303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/jamodetiwopeviwitajawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/92042440946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/dudulozidujokaruzaperivaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9933/2516/files/98473787456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4410/1544/files/rawugewomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1123/4197/files/wirixuzemujibafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4449/4750/files/32278958699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5956/0094/files/nudowufafow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/kutugijevejiriligul.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_off00004fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA9 5640 bytes
SHA-256: 3fb4e76878b3272fa1083edbd9a3e37306ca0c4cac0391b5fe9e1b254cd31955
font_01_sfnt_off000062af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF 10176 bytes
SHA-256: b2bbe73ec6f4f40aa81ef565d2a414e03f5633e9ec51660fa10dee3e9f8c1481

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