Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e19ab6fd74930f8…

MALICIOUS

PDF

58.6 KB Created: 2021-09-08 07:47:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: d8869fa4f4aff7b34728d305d6afbdfd SHA-1: 429431a453ff816103de8f44d8266a5aed496ea3 SHA-256: 9e19ab6fd74930f8dbf42ee45742035047d05d7ceac359f53a2fdc95c7218560
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites. The heuristic firings indicate it functions as a link farm, likely intended to lure users to phishing sites or download further malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7060

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pixomot.ru/uplcv?utm_term=sally+field+book+pdf PDF link annotation
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/c580d4cefd6502236b81a1f661397732/pekelunevaxolaritataja.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fa66f4de81f---98470711193.pdfIn PDF document text
    • https://driftwoodcc.com/userfiles/files/banalituzivobufidazum.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/somewazikudex.pdfIn PDF document text
    • http://yves-segers.be/userfiles/files/61291072604.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/f0f53kr3hrpfhbhnd09daeoq96/44747325689.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080d3b19b879---97989157056.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/56ed5b7ad4e9c9bc6b580d43fcf29eee/wedetobopubevibejobidonu.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16076f4890222c---sotexefarevaguwutos.pdfIn PDF document text
    • https://dammesliepas.lv/ckfinder/userfiles/files/jedafifomizi.pdfIn PDF document text
    • http://tara77.com/clients/46590/File/mugebibumapovem.pdfIn PDF document text
    • http://salon-urody-bellis.pl/images/file/55547974491.pdfIn PDF document text
    • http://carsonpokebar.com/uploads/files/98053863875.pdfIn PDF document text
    • https://www.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/xokukokemivadusipavi.pdfIn PDF document text
    • https://hutechsolar.com/upload/user_upload/files/28318733351.pdfIn PDF document text
    • http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070e1d6dfba4---73528430264.pdfIn PDF document text
    • http://mjsolankifoundation.com/fck/imagesfile/31070668931.pdfIn PDF document text

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