Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b7e1d22022c941…

MALICIOUS

PDF

73.5 KB Created: 2021-11-28 02:46:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 0ee4e00c344a8b2eaecab945ecbc1399 SHA-1: b51fa8b7eb9d11ba3f2f05e413e851e2473a4f3b SHA-256: 88b7e1d22022c941e43c37e468cc3e248bd1d23de1f8c03d8fc15ea8fddb69e7
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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 http://packturf.fr/files/28613547533.pdf In PDF document text
    • https://krossi.ru/images/content/files/gagisokorojixemapod.pdfIn PDF document text
    • https://santechnikosdarbai.lt/images/files/33522625252.pdfIn PDF document text
    • http://ardechetendancebrut.fr/userfiles/ardechetendancebrut.fr/file/pasisepujafajipawejep.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/691b51d0faf6d09c7153e891579c5d86/visorowimode.pdfIn PDF document text
    • https://sua.vn/uploads/userfiles/file/70529855894.pdfIn PDF document text
    • https://dolaodong.baohohoanglong.com/userfiles/file/7706536115.pdfIn PDF document text
    • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/44e000f0464fc689f4c757b2bed001e9/kubozigazodipova.pdfIn PDF document text
    • http://uro-medical.pl/zdjecia/fotki/file/155856335.pdfIn PDF document text
    • http://czechdidgeridoo.com/admin/upload/file/96813747298.pdfIn PDF document text
    • http://rensind.com/upfolder/e/files/20210930233856.pdfIn PDF document text
    • http://tischlerei-schlusche.de/sites/default/files/file/debudemusufimuzututur.pdfIn PDF document text
    • http://1day2night.com/UserFiles/file/35031319532.pdfIn PDF document text
    • http://datev.hu/ckfinder/userfiles/files/jeperidew.pdfIn PDF document text
    • https://mallncart.com/userfiles/files/79436761980.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1617d5ff62fbdd---20539288349.pdfIn PDF document text
    • http://dighakanchaninternational.com/FCKeditor/file/32162932875.pdfIn PDF document text
    • http://medical-1669.com/userfiles/files/velufobivatomaligaj.pdfIn PDF document text
    • https://fzclicks.com/demo/files/editor/file/budidapuvarosiged.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/09jpnjg1jo34s5ldm9dem3p3vk/mezejakarifamo.pdfIn PDF document text
    • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/saxiginilabux.pdfIn PDF document text
    • http://terralis.net/catalogue_dynamique/file/sexidakaka.pdfIn PDF document text
    • http://hotelbelleepoque.bg/userfiles/file/39243514393.pdfIn PDF document text
    • http://spielundlicht.de/content_provider/documents/files/55868270902.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/896FEnmJZlk/uplcv?utm_term=tarot+of+the+bohemians+papusPDF 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_off0000bb42.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bb42.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB42 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000d1e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E6 10780 bytes
SHA-256: 1b958b0be8056bc8d0ac370c253643b70241279b4c8db31326ee8052b39be8a3
font_02_sfnt_off0000ea4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4D 17668 bytes
SHA-256: 96814004580b4ca347d890030fdb840dd7c7b0b31849b842479e639e0e1aeb93