Malicious PDF — malware analysis report

Static analysis result for SHA-256 552e30709a9afe14…

MALICIOUS

PDF

89.0 KB Created: 2022-04-07 21:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: d53c433b8c61fe57d43c8ebb4fb7a02e SHA-1: 7d8a6d0968e728e43dc6e522e6a4c5bdd422c6d4 SHA-256: 552e30709a9afe145e6665af3bdd72089586d99526415ed8d860d2072cb8e623
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://yoyep.co.za/YmrXLWy8?keyword=real%20easy%20book%20eb%20pdf PDF link annotation
    • https://presstone.hu/userfiles/file/2566689446.pdfIn PDF document text
    • https://tipowunukal.weebly.com/uploads/1/3/4/3/134355136/1805962.pdfIn PDF document text
    • https://nujokolove.weebly.com/uploads/1/3/0/8/130874035/ximomavu-vimetunaro-zanaza.pdfIn PDF document text
    • https://medpressa.ru/files/file/33743673384.pdfIn PDF document text
    • http://sandsflooring.co.uk/ckfinder/userfiles/files/zinuxazesitop.pdfIn PDF document text
    • http://abc-tel.ru/data/File/fojalefawiniwanunuwakag.pdfIn PDF document text
    • https://movakesomerinid.weebly.com/uploads/1/3/4/5/134528648/gobafelezabilepa.pdfIn PDF document text
    • https://nugesipepisi.weebly.com/uploads/1/3/4/0/134042061/numisive_kimapi_dunojeravowe.pdfIn PDF document text
    • http://blfimmobiliare.com/userfiles/files/33718946986.pdfIn PDF document text
    • http://boden.boj.se/uploads/userfiles/files/37791053019.pdfIn PDF document text
    • https://vunivukakuxut.weebly.com/uploads/1/3/5/3/135301202/mabunepilese.pdfIn PDF document text
    • http://aedelsur.com/contenido/files/kikotusowabozupigafo.pdfIn PDF document text
    • http://ntep2008.com/UserFiles/File/71586333089.pdfIn PDF document text
    • https://zewadozodatigi.weebly.com/uploads/1/3/4/3/134337643/7336bb1.pdfIn PDF document text
    • http://gartenbaukoeln.de/uploads/files/vejabominujesetap.pdfIn PDF document text
    • http://www.kevimotor-rock.hu/files/files/batojefedisadodamoj.pdfIn PDF document text
    • http://nccpindia.org/ckeditor/kcfinder/upload/files/49038598544.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_off0000faad.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000faad.bin)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000faad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAAD 10488 bytes
SHA-256: 5acc069ae392488af154a9340e0d0972f6cbf958f79f053d698c9a574df8f095
font_01_sfnt_off00011277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11277 17348 bytes
SHA-256: 45616ebc2ecaa6db7d45da5339af47757d48dfe17f45152151bd2ecc7f017232
font_02_sfnt_off00013f9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F9B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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