Malicious PDF — malware analysis report

Static analysis result for SHA-256 552a5e2919e195f6…

MALICIOUS

PDF

115.2 KB Created: 2022-02-03 23:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: d6c83f5df01f43c6c1d444bc86973a4f SHA-1: d2de343ae284a5782c78f83badc067050af7fb91 SHA-256: 552a5e2919e195f6991ee1bed48c367642dcf753d3bd30d86a6eda35bd16c5a6
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9653

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://verdadeon.com.br/kcfinder/upload/files/27129514389.pdf In PDF document text
    • http://penzion-u-zamku.cz/files/file/75377031096.pdfIn PDF document text
    • https://cuisinescartier.ca/upload/editor/file/61350096784.pdfIn PDF document text
    • http://biplano.eu/userfiles/files/doxaresuw.pdfIn PDF document text
    • http://mecateengenharia.com.br/ckfinder/userfiles/files/gusenakeneresivapojores.pdfIn PDF document text
    • http://etiquettes-adhesives-bobine.fr/kcfinder/upload/files/81788424652.pdfIn PDF document text
    • http://adria-ex.com/images/blog/file/vixepikorasivoselijupigud.pdfIn PDF document text
    • https://eseninternational.com/uploads/files/fejerivupise.pdfIn PDF document text
    • https://bak.vn/upload/files/57524034954.pdfIn PDF document text
    • https://www.vasutaszeneiskola.hu/ckfinder/userfiles/files/59959019412.pdfIn PDF document text
    • https://olekiwaszkiewicz.pl/userfiles/file/vomaleguvomemi.pdfIn PDF document text
    • https://himalmanpower.com/ckfinder/userfiles/files/41036726023.pdfIn PDF document text
    • http://hungbuloon.com/media/ftp/file/5549847099.pdfIn PDF document text
    • http://wwstationery.com/files/file/begatamavoverereputojo.pdfIn PDF document text
    • https://tenshinorchids.com/FCKeditor_upload/file/legoxubozuxejituko.pdfIn PDF document text
    • http://penzion-u-zamku.cz/files/file/pirunumojox.pdfIn PDF document text
    • http://erulingua.hu/uploads/content_files/files/ropusiral.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1618fd3ffc1559---83087771428.pdfIn PDF document text
    • http://banderlogclub.ru/kcfinder/upload/files/16289018935.pdfIn PDF document text
    • http://tuttotop.com/userfiles/files/52479773398.pdfIn PDF document text
    • http://vintagesilverrose.com/admin/ckeditor/kcfinder/upload/files/zaposusudijejulobizuko.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/427078b1bb428c3150ac5544bcfbba51/gobipobosit.pdfIn PDF document text
    • http://daindnc.com/fckeditor/userfiles/file/velaximudutugadikatusa.pdfIn PDF document text
    • https://ascend.sut.ac.th/ce/2017/src/plugins/ckfinder/userfiles/files/91257536921.pdfIn PDF document text
    • https://glamweddingdesign.com/userfiles/file/jurabebetudupisamedevir.pdfIn PDF document text
    • http://sungder.com/upload/nodokumog.pdfIn PDF document text
    • http://palyavalaszto.hu/teszt/upload/file/36892531586.pdfIn PDF document text
    • https://mttrasportisrl.it/dati/upload/file/88525772144.pdfIn PDF document text
    • http://jshanwoo.com/ckfinder/userfiles/files/1847615301.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bf180dc93f5---90522781535.pdfIn PDF document text
    • http://rialta.ie/userfiles/files/49614565952.pdfIn PDF document text
    • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16147a15b3d0ee---muwige.pdfIn PDF document text
    • http://asktasi.com/ckeditor/kcfinder/upload/files/95967129337.pdfIn PDF document text
    • http://opuspointpartner.com/ckfinder/userfiles/files/48921055000.pdfIn PDF document text
    • https://xnkvinatimex.com/uploads/files/1077186079.pdfIn PDF document text
    • http://stellamaris.cz/userfiles/88117174027.pdfIn PDF document text
    • http://www.sushmitamukherjee.com/fckimages/file/76702846750.pdfIn PDF document text
    • https://mastirz.com/userfiles/files/80164128725.pdfIn PDF document text
    • http://poiskvod.ru/images/file/bosasuxepiwikop.pdfIn PDF document text
    • http://abwmercury.com/uploads/files/xolaposikekofivanasaf.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f50cc80a85---dakiva.pdfIn PDF document text
    • http://tnslib.su/userfiles/files/43406607828.pdfIn PDF document text
    • http://wmsone.com/eimages/file/wawerekotixeromukili.pdfIn PDF document text
    • https://laznia-radom.pl/userfiles/file/97987659357.pdfIn PDF document text
    • http://xn--vb0b83rba554gca.kr/page_data/file/20211202150514.pdfIn PDF document text
    • https://trongtrucsolution.com/uploads/files/dijupatabubovekeg.pdfIn PDF document text
    • https://alasclub.gr/neuro/ckfinder/userfiles/files/88048907658.pdfIn PDF document text
    • https://biothiennam.com/media/ftp/file/57365963715.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=rpg+maker+mv+android+compilePDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    +7 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15504 10792 bytes
SHA-256: 6fdb66ba9d18060a08605ba8662e91d8e8f531f2df45139e9113ecbb25010d0b
font_01_sfnt_off00016d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16D8A 2644 bytes
SHA-256: 5f74a092e84bad056b38b82301a8928c7ec26dc587b150193a0efb62c87a02cd
font_02_sfnt_off00017886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17886 17032 bytes
SHA-256: 50eb3ea9c1c60691460ee57b461da2631fc35914d44250290e0e9dc1630e3463
font_03_sfnt_off0001a580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A580 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9