Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8604702df91432…

MALICIOUS

PDF

85.8 KB Created: 2021-10-07 06:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 29f888f993920ebd607f48811d0d6d8b SHA-1: 470a871c9dc84a3380838b2593dd3c1fe10d093e SHA-256: aa8604702df91432b1166adf0881249300b4222ae7ea86e39d6579fb697cd019
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://nycsmindia.org/ckfinder/userfiles/files/30593154479.pdf In PDF document text
    • http://cppzone.ru/users/blogs/file/sarudamipojiwikamebu.pdfIn PDF document text
    • http://thebankcardservices.com/uploads/files/84537044303.pdfIn PDF document text
    • http://techbis.pl/files/file/86198815760.pdfIn PDF document text
    • https://tranhdaquyhn.com/uploads/news_file/vipogubadakedi.pdfIn PDF document text
    • https://alshaabcoop.com/userfiles/file/sedew.pdfIn PDF document text
    • http://thessalonikiflights.com/files/files/74083107685.pdfIn PDF document text
    • http://sevvalturizm.com/rsm/files/rureretutuwixotuxoweli.pdfIn PDF document text
    • http://bociany.sk/media/file/88729721831.pdfIn PDF document text
    • http://vladekoservis.ru/files/99883922305.pdfIn PDF document text
    • http://studiosiriosrl.it/userfiles/files/44392126326.pdfIn PDF document text
    • https://honkakuji.jp/honkakuji/images/ckfinder/files/59364247075.pdfIn PDF document text
    • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16134c7e7c19e5---kugatafiporawezejibejogal.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161571ef2d62b4---jozunexugikowixazom.pdfIn PDF document text
    • http://dohertylaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/97649132734.pdfIn PDF document text
    • http://viermaalh.nl/Bottesteyn/Site/afbeeldingen/file/27616270331.pdfIn PDF document text
    • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/098bb6436425d23b8d4336bf3f715566/mixamufawofokexok.pdfIn PDF document text
    • http://cobweb.janci.net/upload/files/43162792131.pdfIn PDF document text
    • https://thefencedocumentary.ca/adminfiles/file/73965971090.pdfIn PDF document text
    • https://lmcmanager.com/ckfinder/userfiles/files/xanidelizuzikuwoputadupi.pdfIn PDF document text
    • http://coming-c.com/userfiles/file/25970034469.pdfIn PDF document text
    • https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/82561418219.pdfIn PDF document text
    • http://lamay.de/userfiles/file/62050301745.pdfIn PDF document text
    • https://nirmalujjwal.com/public/ckfinder/userfiles/files/19900671255.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/908dbb93a4b7b577748e30ad88209629/nujajuganoro.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=tracer+voice+linesPDF 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 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_off0000e6f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ff0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF0E 10152 bytes
SHA-256: bcbe97ec79257d21fe15a8c93d2409cfb5284f4fd28ad8819db9a8c1f9ccbcf6
font_02_sfnt_off000115de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115DE 20260 bytes
SHA-256: 32c370597c276c6da352aa1f27de384f4ac8e912c8a29a49cfbd13ad387f64da