Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9cd582426db1ebc…

MALICIOUS

PDF

42.0 KB Created: 2021-09-05 22:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: c61a8aae300771c3b9100c0524776a68 SHA-1: d29b15488bf7437ec9940147b0c1d2e5c84dbd15 SHA-256: d9cd582426db1ebcd510e8cc3043ceea2fe5919c513b56dde88241e14f45600f
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a phishing lure, presenting itself as an image to obscure clickable links. The embedded URLs point to compromised websites, likely serving as landing pages for credential harvesting or further malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6964

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://garglob.ru/uplcv?utm_term=hobart+mixer+d300t+manual PDF link annotation
    • http://burmeseburmilla-allevamento.com/userfiles/files/54027509896.pdfIn PDF document text
    • http://youandisagenix.com/ckfinder/userfiles/files/ripifuzunax.pdfIn PDF document text
    • http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bdfaea87db---rugufopekuzomovazinopono.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/5dm7hkjuonbo4s1tq23usf93p2/71611204674.pdfIn PDF document text
    • http://vasvaripalmuzeum.hu/upload/file/laxenujuzefako.pdfIn PDF document text
    • https://araprinter.com/ckfinder/userfiles/files/16655709019.pdfIn PDF document text
    • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/364eb044cfb42e52523e49ca3c8c6eb9/rubefivakomul.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/9133eb20f0ae601116c45ea70424a741/63487317788.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079844236a4c---xatefurulawixapamep.pdfIn PDF document text
    • http://mygiftltd.com/userfiles/file/nuzudumakibiselexodafari.pdfIn PDF document text
    • http://architettotamborra.eu/userfiles/files/didukonowu.pdfIn PDF document text
    • http://clinicaveterinariasangiacomo.it/userfiles/files/vowubulipaku.pdfIn PDF document text
    • http://www.specemc.ru/upload/files/64866128942.pdfIn PDF document text
    • http://matstravel.ru/userfiles/file/73366536743.pdfIn PDF document text
    • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607631d329db7---74034500178.pdfIn PDF document text
    • http://pataibicaj.hu/userfiles/file/20744184511.pdfIn PDF document text
    • https://landtop.com/filespath/files/20210830121855.pdfIn PDF document text
    • http://wahluenfty.com/userfiles/95706540315.pdfIn PDF document text
    • https://fallsplat.se/file/mekemobugavo.pdfIn PDF document text
    • http://perseverance.cyou/updatefiles/file/30372068552.pdfIn PDF document text
    • http://luluscafeonline.com/uploads/files/30207725455.pdfIn PDF document text
    • http://westtech1963.com/clients/d/d4/d4250bc21dcbbf02d7f9bc68df143add/File/gowerawerep.pdfIn PDF document text
    • http://precisao.net/files/files/mezosib.pdfIn PDF document text
    • http://epmachine.ru/d/files/12512684545.pdfIn PDF document text

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