Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b5d42b4d0d0673…

MALICIOUS

PDF

76.7 KB Created: 2022-04-16 22:53:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 37c3409d06ca6e001f162808f53f5fc4 SHA-1: e9bff40fb344abab47c0ab8987bbb807285ba7a2 SHA-256: 88b5d42b4d0d0673fc5152e113ac96dce6e603a95bce3a1b1194d030f2f8e91d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://lededafekipolo.weebly.com/uploads/1/3/4/4/134404801/2463576.pdf In PDF document text
    • https://dudodute.weebly.com/uploads/1/4/1/4/141415984/037a4e3632b9b8.pdfIn PDF document text
    • http://rmgoals.com/userfiles/files/nezipokuzumi.pdfIn PDF document text
    • https://maruvape.weebly.com/uploads/1/3/4/8/134854924/5927097.pdfIn PDF document text
    • http://diamantina-joaillerie.com/ckfinder/userfiles/files/xewudisikulopuwip.pdfIn PDF document text
    • https://sijovupomim.weebly.com/uploads/1/4/1/2/141253998/5166628.pdfIn PDF document text
    • http://atut-biuro.com/uploaded/file/8602695293.pdfIn PDF document text
    • https://tivubikujadilav.weebly.com/uploads/1/3/4/5/134527100/tefonizebemel_ronikitimelapow_waremogofuxa_sodutisobipi.pdfIn PDF document text
    • https://difekubo.weebly.com/uploads/1/3/4/7/134714923/pelosebiwibik.pdfIn PDF document text
    • https://novedoxax.weebly.com/uploads/1/3/4/5/134512377/2561078.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/b81daf28844e442ecdb2db8e31398a4d/41062260732.pdfIn PDF document text
    • http://banhangcongnghe.com/upload/FCK/file/wibirefusikut.pdfIn PDF document text
    • https://lerangement.com/upload/editor/file/63602285378.pdfIn PDF document text
    • http://retroldn.com/userfiles/file/jewajo.pdfIn PDF document text
    • https://vorosikifupak.weebly.com/uploads/1/3/5/3/135335020/panawut.pdfIn PDF document text
    • https://www.nrsa.tj/nrsa_system/ckeditor/kcfinder/upload/files/zewapunivuwujos.pdfIn PDF document text
    • https://wezawitulenif.weebly.com/uploads/1/3/4/3/134338426/09f991fde1.pdfIn PDF document text
    • http://www.tsahimmongol.com/uploads/images/files/xodel.pdfIn PDF document text
    • https://jixinedoxe.weebly.com/uploads/1/3/1/3/131383771/332665e84d.pdfIn PDF document text
    • https://ponuxasanafob.weebly.com/uploads/1/4/1/5/141503186/4464169.pdfIn PDF document text
    • https://repiwolaz.weebly.com/uploads/1/3/1/3/131381539/69229a1d1.pdfIn PDF document text
    • https://podar.co.za/YmrXLWy8?keyword=the%20art%20of%20public%20speaking%20book%20in%20hindi%20pdfPDF link annotation
    • 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_off0000c755.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c755.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC755 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000df6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6C 11192 bytes
SHA-256: e69e352d404ebb873b48ec66b5d2fa7762a7b55e4f42b745c10a357d30183d29
font_02_sfnt_off0000f91e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF91E 16912 bytes
SHA-256: 792522676c751df970daa26e79c3599aa9153c05f415f46109b8cf1b6e940f9f