Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e00c92af80f050…

MALICIOUS

PDF

53.0 KB Created: 2021-05-08 11:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10b74908a970f15c41aba2e5a4be5aa0 SHA-1: 98634ed6bcf863ba35612800986cf1d509adef31 SHA-256: 86e00c92af80f0501baad9ac438312bcc9e607a919877f69c540b84a0ff74374
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It functions as a link farm, hosting numerous URLs that point to compromised WordPress upload directories and disposable hosting. The primary purpose appears to be redirecting users to malicious content, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6648

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 http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2dd37365d---88511040742.pdf
    • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/16075626a96c91---lasanupejanigatinel.pdf
    • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607458517d96b---80673748192.pdf
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/oi6oppc1v4q8emq0tu21gihm21/51088427060.pdf
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16070ad1aed5fa---limurakijexo.pdf
    • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/6596936dfdbc3fcab8924e882f9fcd64/vabufakifoxiwosowironivo.pdf
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608aecba3a77f---88015975601.pdf
    • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/3nr5bodgoejh82cse575mvmk60/23924253469.pdf
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce96d253b2---zunulisugal.pdf
    • https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/65140198fcd97b41f68680f62907adbe/15035381889.pdf
    • https://xn----7sbbjg7ctfs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a7516e522fbe84c2598e936de8836b50/98097655522.pdf
    • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/e75d57a53ee36a4395a14b95178f79a2/74463805176.pdf
    • https://fanaf.comarticle_ressources/file/37132872674.pdf
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/4342168d44d1566cc99b80de1885748d/56434064503.pdf
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/grn4hat3npc3om1d1mv88hupi7/nimobolepogegolofarorom.pdf
    • https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/134ec51803a9f6cc6cb54f2afdd7a0ec/moxeziwunima.pdf
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d82b1895d0---99428181594.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=geometric+proof+gcse+questions+and+answers

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