Malicious PDF — malware analysis report

Static analysis result for SHA-256 4505bb657963b045…

MALICIOUS

PDF

78.0 KB Created: 2022-04-09 16:33:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: faf2f570faf84727794fac6923885ce3 SHA-1: 3d620645400db772d4a191348a5bd14b0fd89a62 SHA-256: 4505bb657963b04558bb33ab5f313d67337431769110b37436704a46952055cb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://norin.co.za/YmrXLWy8?keyword=what%20is%20i%20am%20the%20messenger%20about PDF link annotation
    • http://ktcz.eu/files/files/nivasobo.pdfIn PDF document text
    • https://huk-machine.com/userfiles/file/xewub.pdfIn PDF document text
    • https://peintures-descours.fr/fichier/files/befuv.pdfIn PDF document text
    • https://nojonepidafajik.weebly.com/uploads/1/3/0/7/130775859/3166527.pdfIn PDF document text
    • http://leebyunghun.org/new/upload/board/files/mubezuzunekifomolu.pdfIn PDF document text
    • https://jugubiwujivivej.weebly.com/uploads/1/3/4/3/134352954/22447e4cebe.pdfIn PDF document text
    • https://nabapobu.weebly.com/uploads/1/3/7/5/137501246/vutuzasotisiw.pdfIn PDF document text
    • https://lalevajapogos.weebly.com/uploads/1/3/0/8/130874146/aa527a.pdfIn PDF document text
    • https://pmms-online.com/assets/file/sefamibemojimipi.pdfIn PDF document text
    • https://el-tall.pl/pics/file/35980192156.pdfIn PDF document text
    • http://artesaonato.art.br/kcfinder/upload/files/vugapusakar.pdfIn PDF document text
    • http://superfasttv.com/uploads/files/fujapigib.pdfIn PDF document text
    • https://ruzipirufevet.weebly.com/uploads/1/3/4/6/134667542/nonufanukuwadoputegu.pdfIn PDF document text
    • http://hasomedia.com/userfiles/file/jebubufuteberamapidawuni.pdfIn PDF document text
    • http://www.stadion-zarya.ru/ckfinder/userfiles/files/16281070286.pdfIn PDF document text
    • http://virus-safe-zone.com/ckupload/files/vedasadirexexa.pdfIn PDF document text
    • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/zakusoke.pdfIn PDF document text
    • https://moxeguzivega.weebly.com/uploads/1/3/5/9/135965209/2858808.pdfIn PDF document text
    • http://manchetenewsms.com.br/ckfinder/userfiles/files/14173903813.pdfIn PDF document text
    • http://cosyromania.com/media/file/vuwuge.pdfIn PDF document text
    • http://gemeinschaftshaus-grossmuss.de/demo/admin/editor/kcfinder/upload/files/kegunefopipimoxarolon.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_off0000cc71.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cc71.bin)

Related samples 8

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_off0000cc71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC71 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE483 17836 bytes
SHA-256: 281c7739c5c97ea8a57c96c913acfc1d90beca5e4759d4d1de044edf0a469ddd
font_02_sfnt_off000111ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111AD 10744 bytes
SHA-256: 392c2c147920e75f33c024b5c24472a249c0578e1d3eceee47a4765c82a8dbf4

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