Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6de4a49df0c29e…

MALICIOUS

PDF

80.1 KB Created: 2021-12-16 22:34:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 677f785c7bb33b1045c64617a81f0916 SHA-1: e465c1a1e442f091fbe316e747aebaa6d91d99cb SHA-256: 2b6de4a49df0c29e28b02c5d997b4cf438ca0852c735d05b301ae9108a13b076
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9833

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
  • 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.
  • 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://sapporomn.com/userfiles/files/34677875301.pdf In PDF document text
    • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/d3ba85943a157a94762d9f99fa7cc27f/wibibaj.pdfIn PDF document text
    • http://webinaris.biz/ckfinder/userfiles/publics/files/sivolakanuba.pdfIn PDF document text
    • http://www.injamal.es/nueva/ckfinder/userfiles/files/22349704815.pdfIn PDF document text
    • http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/taxolijugaza.pdfIn PDF document text
    • http://erdbau-rauch.at/76061752446.pdfIn PDF document text
    • http://londonjip.com/userData/board/file/sofibotimojuzobu.pdfIn PDF document text
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/6f00994ed56c840b32cc093d1f3c5bca/nepamamadazubisezi.pdfIn PDF document text
    • https://laatjehuisweerstralen.nl/upload/file/dowenogasaf.pdfIn PDF document text
    • https://proektasis.gr/admin/spaw2/uploads/files/wasadabemovud.pdfIn PDF document text
    • http://jar-ted.pl/file/jalisexotebutapiti.pdfIn PDF document text
    • http://abwingsmd.com/uploads/files/xosunaxozalib.pdfIn PDF document text
    • https://global-product.org/CKEdit/upload/files/rivapew.pdfIn PDF document text
    • https://vico-real-estate.com/ckfinder/userfiles/files/ripesaduxixelavelinozevu.pdfIn PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/5tjrpgujthabfkluimmol33b53/38011627948.pdfIn PDF document text
    • https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/ce98e2babdc848551c0936da5765497e/kuweleta.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/81952815541.pdfIn PDF document text
    • http://langmoon.jp/js/upload/files/tewudaxolumalisujezu.pdfIn PDF document text
    • http://honghuibio.com/d/files/balalowunilusanosun.pdfIn PDF document text
    • https://mimzyonline.com/userfiles/file/53986827089.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/o51pfjtmg865qb3egvg4e7h79a/gukojulakivubuli.pdfIn PDF document text
    • http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/1721821458.pdfIn PDF document text
    • http://ride-on-earth.com/images/blog/file/xifinoka.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/35208518270.pdfIn PDF document text
    • http://saigonradio.com/userfiles/file/teroduravapikulafexus.pdfIn PDF document text
    • https://totszerdahelyikultura.hu/images/file/fuxutatixogebirulepo.pdfIn PDF document text
    • https://shioturboapi4-xyz.com/contents/files/36322705961.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/HKUGBsJGI0E/uplcv?utm_term=alamo+colleges+final+exam+schedule+fall+2020PDF 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_off0000d002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD002 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000e6a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A1 18912 bytes
SHA-256: f530ea2d78aa45ae805bb7b7130cc61cd05fa0f7900b42e88db4f63ca1e17c13
font_02_sfnt_off0001173d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1173D 11152 bytes
SHA-256: 819b37d479520a6a9d3574b63dde0da53775ccea180b338c6f3796629f850e6b