Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e11403910f12269…

MALICIOUS

PDF

114.4 KB Created: 2022-04-09 14:05:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-09
MD5: fc0983c1f50f0ad9b3bc5a620cbe818a SHA-1: 97e466028a5f0d6f8fed67a9db9389343b056d44 SHA-256: 5e11403910f12269b8ff893d34a82a313ea0ef36365d3517096c048d2eb6cc25
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The document body references 'Gravity Falls Journal 2' and 'The End of the World as We Know It', likely a lure to entice users to click the embedded URLs. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for malware distribution or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://sofovelo.weebly.com/uploads/1/3/1/3/131379060/775f1e0651.pdf In PDF document text
    • https://lajawenofuki.weebly.com/uploads/1/3/4/5/134501859/nenufatexufem.pdfIn PDF document text
    • https://xofezariro.weebly.com/uploads/1/3/1/8/131871505/9ea1b.pdfIn PDF document text
    • https://fodugivatixa.weebly.com/uploads/1/3/4/5/134501687/taditujobodop-kugagokexaj-nikal-pupazivef.pdfIn PDF document text
    • http://muratdizayn.com/panel/kcfinder/upload/files/41676029833.pdfIn PDF document text
    • http://sklepjola.pl/userfiles/file/54192638012.pdfIn PDF document text
    • https://pupokidam.weebly.com/uploads/1/3/1/3/131381904/dudiwelomug-dirusa.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/162421df18e60b---7448078631.pdfIn PDF document text
    • https://sarofosifuzatu.weebly.com/uploads/1/3/5/3/135329924/denupi-teneki.pdfIn PDF document text
    • https://kijatuvoriwoze.weebly.com/uploads/1/3/4/3/134352029/8727269.pdfIn PDF document text
    • https://pevufebulole.weebly.com/uploads/1/3/4/3/134351465/c5650ccbd2e.pdfIn PDF document text
    • https://rovetizewi.weebly.com/uploads/1/3/0/7/130776299/a15fbaf.pdfIn PDF document text
    • https://patawera.weebly.com/uploads/1/3/4/1/134131312/lodawunubibog-wetosapekujigul-jamiwajowaj-balefepabu.pdfIn PDF document text
    • https://luzusuzure.weebly.com/uploads/1/3/0/7/130775685/sefujumutudosakejigu.pdfIn PDF document text
    • https://fevujuwevu.weebly.com/uploads/1/3/0/8/130813851/kurosalufinakenax.pdfIn PDF document text
    • http://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/firamatikajenesu.pdfIn PDF document text
    • https://todulatewex.weebly.com/uploads/1/3/0/7/130738789/duvozokexuzokizibop.pdfIn PDF document text
    • https://lovig.co.za/YmrXLWy8?keyword=gravity%20falls%20journal%202%20portal%20pagePDF link annotation
    • https://fuwelajefupeze.weebly.com/uploads/1/3/5/3/135390198/kimim-vomuv.pdfIn PDF document text
    • https://easyown.ddproperty.com/datas/files/dadagumolesufikejutufa.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00015a87.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00015a87.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A87 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001729e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1729E 11104 bytes
SHA-256: cf3ea26e751a81c8c97490a2450c0562cae8839e965877e29521053ac31915f6
font_02_sfnt_off00018cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18CBC 18080 bytes
SHA-256: 696e41a0e7d72c570554d895f3dbac7ab52376f6c5e7d4a1cda3222dae982471