Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a3605c21971d17…

MALICIOUS

PDF

148.3 KB Created: 2022-02-03 05:58:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: c114f116163658f106b1ae930c9faad9 SHA-1: 45c93c654dc6111ca94c9a904076e0bd6891d34c SHA-256: 18a3605c21971d1785f19e5a9114dd8a6fd657221d1fd1cc46ed8dade1f5c201
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9585

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 https://lazav.co.za/XSRYdR1H?utm_term=apel+cooper+pdf PDF link annotation
    • http://anais.terminarz.online/kosmetyczka/krakow/files/89576263762.pdfIn PDF document text
    • http://summithighschool1958.com/clients/71652/File/tibisuverolujokebekawaj.pdfIn PDF document text
    • https://training-access.com/upload/file/gagebagemeguladiwiduduvu.pdfIn PDF document text
    • http://xn--elementy-zczne-kwb98g.pl/media/file/28453851598.pdfIn PDF document text
    • http://albarossa.jp/js/upload/files/25918648781.pdfIn PDF document text
    • http://zulassungsservice4you.de/bilder/file/sitetivegej.pdfIn PDF document text
    • https://matteagianotti.ch/userfiles/files/54779307645.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1616b479aeda66---nojibetovulonezujita.pdfIn PDF document text
    • http://amtautotrasporti.com/ckeditor/kcfinder/upload/files/65145246612.pdfIn PDF document text
    • http://sbsinternationalschool.org/userfiles/file/dobabelomiboburi.pdfIn PDF document text
    • http://qigong.ru/userfiles/file/80140234391.pdfIn PDF document text
    • https://rdsdealers.com/ckfinder/userfiles/files/wezamevin.pdfIn PDF document text
    • http://chroscina.com/userfiles/file/59117966351.pdfIn PDF document text
    • http://koreaseowon.com/ckupload/files/jamokifuvipuninegitemonu.pdfIn PDF document text
    • http://travelweeklearningcenter.com/app/webroot/upload/files/25670317136.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/7df50c1003991c12eb10a324b0ae91a8/48053981628.pdfIn PDF document text
    • http://33podarka.ru/pictures/files/42771466797.pdfIn PDF document text
    • http://krokodilok.hu/_user/file/sibulekezudewigifetewered.pdfIn PDF document text
    • http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161a95bd2ee238---zozixesojusigigoxogitaw.pdfIn PDF document text
    • https://www.datacom.com.br/assets/admin/ckeditor/kcfinder/upload/files/50706404483.pdfIn PDF document text
    • https://tranhtreo.com/images/ckeditor/files/98072487529.pdfIn PDF document text
    • http://2018.letnifestiwal.pl/ckfinder/userfiles/files/moxinesodoradopugiredira.pdfIn PDF document text
    • https://adian.eus/files/galeria/files/sadarapiwiborurewemalu.pdfIn PDF document text
    • http://rgn2u.com/userfiles/files/56627252008.pdfIn PDF document text
    • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1617c381dac869---17083862769.pdfIn PDF document text
    • https://casaalu.com/luutru/files/baxekezufiserasixo.pdfIn PDF document text
    • https://hyper.vessty.com/_img/files/40429260302.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc67b425453---54173802661.pdfIn PDF document text
    • http://www.lugashotel.com/data/editorfile/sanab.pdfIn PDF document text
    • https://qcbusa.barettis.com/userfiles/file/39598954288.pdfIn PDF document text
    • http://mylodge-naoshima.com/images/blog/file/kapabexenomopakesuwuv.pdfIn PDF document text
    • https://protradingindia.net/userfiles/file/kesozof.pdfIn PDF document text
    • https://indiantalentjunction.com/milan/media/zuxuzavizusudis.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 extracted file (font_00_sfnt_off0001e9c4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001e9c4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001e9c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E9C4 16740 bytes
SHA-256: 889183925ad1b05f0bb7085b0675cf9c085ddc7d8a8749c39a979ba6330ced24
font_01_sfnt_off0002153c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2153C 9968 bytes
SHA-256: 4ecbbe308ab3cc4a0a74698208b06a3b0d03d6612da05f9e8d368bf3fdef2158
font_02_sfnt_off00022b68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22B68 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9