Malicious PDF — malware analysis report

Static analysis result for SHA-256 e268d2542515328d…

MALICIOUS

PDF

76.2 KB Created: 2021-07-25 04:34:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: aac7658e90e67b5522bd90464a04ad21 SHA-1: 36f42690ffc8aa73162cd17644382c600f121586 SHA-256: e268d2542515328d5bf460ef7e4ac8aa574e3bcceae4599b7b22f0959f54b2fa
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links pointing to websites hosted on compromised CMS uploads and disposable domains. The ML classifier and ClamAV detection indicate malicious intent, likely for phishing or malware distribution. The presence of a link farm suggests an attempt to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5601

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 http://au-coeur-du-temps.com/userfiles/file/fipidunino.pdf In PDF document text
    • http://biolabsrl.org/userfiles/files/fijizapu.pdfIn PDF document text
    • http://animalscipublisher.com/files/upfiles/file/74243146719.pdfIn PDF document text
    • http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/3uhe8u0ceufhsijkmm09dt4na3/gazobojawotupamivu.pdfIn PDF document text
    • http://aktifbant.com/resimler/files/58267605685.pdfIn PDF document text
    • http://chromoink.com/updates/file/24392227290.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/r6dakma5ii990it4sdg1pon53u/zolepajej.pdfIn PDF document text
    • https://artofsurfing.com/preview/ckfinder/userfiles/files/womemarujeveb.pdfIn PDF document text
    • https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/e5a26094a98fba054c9724455ac02a57/jukexagav.pdfIn PDF document text
    • http://quatanggiabao.com/images/uploads/files/97889872497.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/p2mun1uen63p22t23k5g5kk45m/tarusif.pdfIn PDF document text
    • http://mjsolankifoundation.com/fck/imagesfile/xijanozukolage.pdfIn PDF document text
    • https://rijst.nu/userfiles/file/29239473174.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160841c33ed9fd---37977962630.pdfIn PDF document text
    • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160faf9e27999b---92055098016.pdfIn PDF document text
    • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/41292700342.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed4606f3c4---40051192371.pdfIn PDF document text
    • http://musorcentrum.hu/files/article/file/42444592843.pdfIn PDF document text
    • http://asea-admin.com/_userfiles/file/20210521041012.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16083906da9a39---kolawojot.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/6517b4ffd76b01915d26ff268472e877/32026134779.pdfIn PDF document text
    • http://orsini-blasioli.it/userfiles/files/10781856531.pdfIn PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0db0c4d96---vosovisefujafo.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccb6bd5719---47912162572.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd05a8529d---pogesezenexovowugesovoj.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f7c37f6457d---35122864765.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=que+son+los+libros+apocrifos+de+la+biblia+catolicaPDF link annotation

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