Malicious PDF — malware analysis report

Static analysis result for SHA-256 705402f3d4272d69…

MALICIOUS

PDF

64.0 KB Created: 2021-09-17 09:15:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: c7f0820106d451bcc4c931cb51618f6d SHA-1: 6ffb1ff01f5b315c5a18f7701eb1e0ecd29630c4 SHA-256: 705402f3d4272d69c178c500cd618c2c8db4dd981d9459a0cfb095004df4fb72
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS uploads, indicating a link farm designed to redirect users. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of an attempt to lure users to malicious sites, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3605

Heuristics 5

  • 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
  • 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://patc.fr/imagesfile/97646426884.pdf In PDF document text
    • http://nokianhakkablue.ru/ckfinder/userfiles/files/nexoruvewevitituzotet.pdfIn PDF document text
    • http://uceng.net/_UploadFile/Images/file/33818553607.pdfIn PDF document text
    • http://energo-market.ru/sadm_files/73742172699.pdfIn PDF document text
    • http://limobebe.com/userfiles/files/zokeruwomuvagazozepoj.pdfIn PDF document text
    • http://salwex.hu/file/bokoli.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413afc3ee3e---wubaliduluparelorojifus.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/dizupadowilulukuwiwetofor.pdfIn PDF document text
    • http://versobrokers.eu/userfiles/files/57611838132.pdfIn PDF document text
    • http://splogservice.ru/content/files/doladegiwoz.pdfIn PDF document text
    • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139684a29f73---nogidalilogojisedufoja.pdfIn PDF document text
    • https://www.afoa.org.ar/backend/ckfinder/userfiles/files/roxifowigubesixejitudol.pdfIn PDF document text
    • https://www.groupe-coelho.fr/ckfinder/userfiles/files/21785392082.pdfIn PDF document text
    • https://hgqq.hk/tony/churchofgod/ckfinder/userfiles/files/duzenudabepolomufiwuj.pdfIn PDF document text
    • https://verner.lt/images/files/44430668914.pdfIn PDF document text
    • http://gryfarmerskie.pl/pliki_wyswig/files/muxugubovaril.pdfIn PDF document text
    • http://thietbiantoanttk.com/uploads/files/durodafipefifiwatobur.pdfIn PDF document text
    • http://jaluzipro.ru/public/userfiles/file/gusikeriweso.pdfIn PDF document text
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/ac08dcf774354e89f992c02e8f2cad80/nazatixeruxolilav.pdfIn PDF document text
    • http://packamate.com/userfiles/91292584477.pdfIn PDF document text
    • http://kapalishakti.com/ckfinder/userfiles/files/35718023058.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/eh03g6bk497vk87hcuclsrb0ke/kewimaroxavijexinejuw.pdfIn PDF document text
    • http://www.fonfe.com/uploads/files/40224365822.pdfIn PDF document text
    • https://exam11.menapoint.com/app/webroot/upload/files/xikebagolefonovupenesot.pdfIn PDF document text
    • http://internet-trade.eu/UserFiles/file/49797238840.pdfIn PDF document text
    • http://www.tm-africa.com/beta/public/uploads/cms_filescms_files/suzevuwurasamunujamew.pdfIn PDF document text
    • http://cyc.cz/pictures/clanky/files/wowebibiwim.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=pixellab+photo+editor+mod+apkPDF link annotation