Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f182f7feed8004…

MALICIOUS

PDF

41.4 KB Created: 2021-09-18 19:56:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 32b4e9f594eb28a16ea43d4d50c27e8e SHA-1: ff0ab3f263907d9ab8acbbc4f2a1d1de1b9770e0 SHA-256: 25f182f7feed8004760d3f277140be61400538eca3c347d67f461ba33283e8d8
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains embedded JavaScript and is structured as a link farm, with many URLs pointing to potentially compromised websites. The heuristics indicate it's an image-only lure designed to trick users into clicking, likely leading to phishing or malware download. The ML classifier and ClamAV detection strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7896

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
  • 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 41 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://osoboebludo.com/ckfinder/userfiles/files/3854439243.pdf In PDF document text
    • http://secretinvitation.net/images/files/58550157765.pdfIn PDF document text
    • http://savitaco.com/uploads/images/files/32049894479.pdfIn PDF document text
    • http://www.bash.cl/media/file/28963710450.pdfIn PDF document text
    • http://studiolegaletrotta.eu/userfiles/files/42045878290.pdfIn PDF document text
    • http://odessawa.com/userfiles/file/60752840223.pdfIn PDF document text
    • https://efckrakow.pl/userfiles/file/79423931153.pdfIn PDF document text
    • https://anne-berger.de/sites/anne-berger.de/files/fkcfile/dezazuravexuzipifiroki.pdfIn PDF document text
    • http://lejonhund.com/upload/dojikekanukigobogatij.pdfIn PDF document text
    • http://mijinmotor.com/fckeditor/userfiles/file/pimurivebonomizeludibapa.pdfIn PDF document text
    • https://kawanmto.net/contents/files/xeviwetawulixoruk.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/f74af40d50b2be1006d702199afa1ca2/80974645446.pdfIn PDF document text
    • http://ovecollection.com/royal/admin/images/products/file/fogevub.pdfIn PDF document text
    • http://exima.kr/userData/board/file/91244756379.pdfIn PDF document text
    • https://certifiedcollisionrepair.com/home/cert/public_html/ckfinder/userfiles/files/95350665636.pdfIn PDF document text
    • http://www.serenissimaservizi.com/files/68131810816.pdfIn PDF document text
    • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161459cef728f0---gegupemeputuburafos.pdfIn PDF document text
    • http://shrlie.com/upload_fck/file/2021-9-18/20210918015653131197.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137704b604db---29216649800.pdfIn PDF document text
    • http://giovanniseneca.eu/userfiles/files/76336080221.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/vi8e8orbj2qpqittqr8frd5p44/kalafapeter.pdfIn PDF document text
    • http://irinaburmistrova.ru/files/67333456471.pdfIn PDF document text
    • https://abyway.lv/images/ck_images/files/zuvufamipugijedurofa.pdfIn PDF document text
    • http://fabriquetextil.com/js/new/fckeditor/userfiles/file/31619487227.pdfIn PDF document text
    • https://xn--80aaijzh9b.xn--90ae/documents/file/vekud.pdfIn PDF document text
    • http://daehnfeldt.com/userfiles/file/77304833382.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=james+martin+chinese+chicken+and+prawnsPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.