Malicious PDF — malware analysis report

Static analysis result for SHA-256 965461844a05013c…

MALICIOUS

PDF

263.7 KB Created: 2021-06-24 07:53:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c903393178f2c94384cfb619a2a4576b SHA-1: dc2e9b436d62c8bf1f9fa48963399d12ed1f386a SHA-256: 965461844a05013cbc74aef72836a26c2a16b6bebfd864c269cac24376924cc5
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of external links and the overall detection profile points to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

Heuristics 4

  • 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.
  • 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://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/1a4b5b9fb4092bae2eaee6f76a88ec97/bavakevudusowusixixanuk.pdf In PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7d94bba67---naximogozirivoxiruwigan.pdfIn PDF document text
    • http://capri.lt/userfiles/files/13001876127.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c60cdf353---59228928801.pdfIn PDF document text
    • http://ideviceplus.nl/app/webroot/files/userfiles/files/68881918882.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/mac9fvmtohab5tabshce9940fh/jurafelaxasi.pdfIn PDF document text
    • http://banghetretruc.com/media/ftp/file/22811229309.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608adec7e01b7---18615427211.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6bc810164---najudexilofixafizanik.pdfIn PDF document text
    • http://billsky.ee/files/file/fepavetebiwusotiruvoxuma.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/7b70d267dd83af5502d1279e919ef632/modobemudak.pdfIn PDF document text
    • http://bi-acaovo.com/upload/files/dududumefije.pdfIn PDF document text
    • http://china-zzld.com/uploadfile/file/%5C/2021060220005989.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb604f0eb0---95456133481.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ddccb4cc57c80f3d8427c21430045ac7/menowevusu.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/d8c1d3a1e987d4974ba0dae260735741/kovap.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f96f1acec---32595813500.pdfIn PDF document text
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/8934ece16eab97636b3de6bf9f6f46f2/zalivetakepejogas.pdfIn PDF document text
    • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/dc266faf867e501e1b282111fd729ce7/87155702487.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=tamil+tubemate+app+downloadPDF link annotation

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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