Malicious PDF — malware analysis report

Static analysis result for SHA-256 02b8724545b58214…

MALICIOUS

PDF

62.4 KB Created: 2021-08-06 23:24:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 215598c6728b7efa8c4f8e65fb085111 SHA-1: 6ffa700645799e823a6d170a1e5202a1ac423777 SHA-256: 02b8724545b5821450065bcda363e1a597a76f3e23ff0583ba5aa2a4c7ec2786
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites acting as link farms. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery. The embedded JavaScript is a common technique for executing malicious code or redirecting users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6040

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.
  • 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 https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/f7b1ab4d95cda5103557c222e042a406/filatogibopokupabuwadonu.pdf In PDF document text
    • https://www.apollopowersystems.com/wp-content/plugins/super-forms/uploads/php/files/782b64e5fb08cae17d33b1a12304a728/vakemeg.pdfIn PDF document text
    • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/0mibckfaqimk3t2k92a25cvp26/muriwixofogobilixakila.pdfIn PDF document text
    • https://dailyhondaotomientay.com/upload/files/64099454486.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3224405835---vaxakigewovaz.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/5f382d69d4fdbe3001872bbef1a54f37/visaki.pdfIn PDF document text
    • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/bimamiruk.pdfIn PDF document text
    • https://handientu.vn/userfiles/file/joxuwatozubixinivexonafep.pdfIn PDF document text
    • http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/36186511014.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160dddfdd8edcd---wafovotasununuwiwi.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160afcf4891b91---xufetobuzawutadoxaz.pdfIn PDF document text
    • https://silatur.com/js/ckfinder/userfiles/files/91340233368.pdfIn PDF document text
    • http://mosvag.ru/img/lib/file/kanutamu.pdfIn PDF document text
    • https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c833e144ed---7912523078.pdfIn PDF document text
    • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/89d313476488c25db7d66af7a09aa15a/wejokomem.pdfIn PDF document text
    • http://alumcity.ru/userfiles/file/putulesu.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608abbded7c59---23409344621.pdfIn PDF document text
    • http://geoplan.su/userfiles/file/biratex.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac05197b20e---82116259913.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d6b1df74592---93463747386.pdfIn PDF document text
    • http://blbr365.com/userfiles/file/1621009125.pdfIn PDF document text
    • https://adtw1.com/ckfinder/userfiles/files/38645494574.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/4ee5280df9a04ec321579d1192c188db/47624054602.pdfIn PDF document text
    • http://godswaynehemiahmbc.com/clients/878002/File/jexip.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=present+subjunctive+spanish+quizletPDF link annotation

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