Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2eb0af98def9ee1…

MALICIOUS

PDF

41.8 KB Created: 2020-09-19 22:00:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2d343fd4c7ff072c22bee8b2f3c14d0 SHA-1: 2d83b3b46a34055c63cd88043ab01da6d8956d5f SHA-256: c2eb0af98def9ee1e2e7c0a9643b0347e0da709b4174d6235b2626def7cd4019
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'carmina burana pronunciation guide'. This suggests the document is designed to trick users into visiting malicious sites, likely for further exploitation or credential harvesting. The ML classifier strongly supports the malicious classification.

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.club/wix?keyword=carmina+burana+pronunciation+guide In PDF document text
    • http://files.toddconover.com/uploads/1/3/0/9/130969944/vegeguwasasimif.pdfIn PDF document text
    • http://files.jennifernomad.com/uploads/1/3/0/7/130738928/xavefa-belikemeguredi-lakiduvagikow.pdfIn PDF document text
    • http://files.instantcarappraisal.com/uploads/1/3/1/1/131164474/3251410.pdfIn PDF document text
    • http://files.engineeringshock.com/uploads/1/3/1/3/131383860/7d5a6d1b21cd3.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/1/0430/4715/7911/files/51525010081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/download_spanish_books_for_beginners.pdfIn PDF document text
    • https://9f11180f-7ccf-4599-a5a9-4964924aa863.filesusr.com/ugd/72ed28_f2c90eb52f7949b7b54f30a0edd6ace3.pdf?index=trueIn PDF document text
    • https://5d52c2a7-f64c-43f1-b3ca-773103ada224.filesusr.com/ugd/b148e5_07085f4cc24146e8968e8f496b279c53.pdf?index=trueIn PDF document text
    • https://d4593678-f317-4864-b74b-6071d07f020f.filesusr.com/ugd/01e791_a90c1fba7c1742638453a06ef4eea56d.pdf?index=trueIn PDF document text
    • https://f964fc76-3bc1-4a53-a8f4-f3ab7246bcc0.filesusr.com/ugd/d2057d_4ae03c6a80934c19b3606daaeb2c8213.pdf?index=trueIn PDF document text
    • https://6d830b34-2537-4aea-97a0-16fae64959c4.filesusr.com/ugd/0cd019_4149220100a14582a2b7965ee132d27e.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/7178/7174/files/lazegurojamawaworawomev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7698/3713/files/tetowegeliboti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/95264876869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4266/6656/files/josojigib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/97175117982.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_off000065e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E9 5228 bytes
SHA-256: 3f984b215a82624286046c34ae693d7afcb64bbf39531ee8823722fd343aefd7
font_01_sfnt_off0000778d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778D 10100 bytes
SHA-256: 9f3c04aa400eb47b9eeb008a0446cdae1c41e075d7ac61fcf127a7c0307e80a2

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