Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87a7df2017b6329…

MALICIOUS

PDF

85.8 KB Created: 2021-11-15 00:11:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: c2321f8f6cf2e4c1f928665cc34711d0 SHA-1: 2144a34386c7d3e5ffdeef7c834e00783856718a SHA-256: f87a7df2017b63293a79de75d09180c22b14e2b8541b5f982dbd13b2e4efcd40
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://nomylo.ru/uplcv?utm_term=download+greatest+by+sia+mp3 PDF link annotation
    • http://ettorebelfioreliutaio.it/userfiles/files/zuxebexepawok.pdfIn PDF document text
    • http://gusanhightec.com/userData/board/file/78422184326.pdfIn PDF document text
    • http://kyochonbuenapark.iorderfoods.com/uploads/files/rakusabaxi.pdfIn PDF document text
    • http://www.larucheapain.fr/ljk/file/kuxijufamoni.pdfIn PDF document text
    • http://www.gulbaharsigorta.com/contentData/file/kenokezuxukozufirofut.pdfIn PDF document text
    • http://sjmhospital.org/files/js/ckfinder/userfiles/files/zositubivotem.pdfIn PDF document text
    • http://2safe4u.cz/UserFiles/File/matowaladadefowafat.pdfIn PDF document text
    • https://www.phuketvillarentalandservices.com/ckfinder/userfiles/files/73933172555.pdfIn PDF document text
    • http://baihsad.com/userfiles/files/20210929_161008.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613607366ddc0---9867656729.pdfIn PDF document text
    • https://mdteam.se/ckfinder/userfiles/files/sazabixisokofazemubitexar.pdfIn PDF document text
    • http://www.donboscovizag.org/images/files/sedavajamojuwa.pdfIn PDF document text
    • https://badanie-wody.pl/galeria/file/38369953012.pdfIn PDF document text
    • http://uptownherndon.com/uploads/files/mekawu.pdfIn PDF document text
    • https://goodline.by/userfiles/file/litasabawonof.pdfIn PDF document text
    • http://atomleasing.ru/media/File/tijorov.pdfIn PDF document text
    • https://yuanfuconstruction.com/ckfinder/upload/files/39474276898.pdfIn PDF document text
    • https://tbsva.org/Upload/files/20211005024654.pdfIn PDF document text
    • http://cuanhomkinhtoanthang.com/media/file/xukir.pdfIn PDF document text
    • http://fivelscope.net/fckimages/vimogekekoxowupuxovuzun.pdfIn PDF document text
    • http://craft-personal.de/userfiles/file/fowifopufefotut.pdfIn PDF document text
    • http://cheapstandard.com/uploads/files/lazejuzanekaz.pdfIn PDF document text
    • https://colortest.biolifecosmetics.com/upload/file/9383448228.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/b763763845a1e252398b3fe8cd5a6511/tupituki.pdfIn PDF document text
    • https://kar360.com/resimler/files/65388132807.pdfIn PDF document text
    • http://xn--80ahcjevtqq.xn--p1ai/ckfinder/userfiles/files/79926898855.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE783 18852 bytes
SHA-256: b201a9a09e786e73b1315c0bcb2b0ec48ce0e4750f2193779315c86a8a2a9bd8
font_01_sfnt_off00011861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11861 11248 bytes
SHA-256: c1a15f641e18386c392377596de14bba6cd2a13f2052ad42b35c46cb6ac84396
font_02_sfnt_off00013265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13265 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef

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