Malicious PDF — malware analysis report

Static analysis result for SHA-256 909a2f03efde657d…

MALICIOUS

PDF

63.7 KB Created: 2021-07-13 00:27:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: a172b5bbe65f0175764cd7804fac543c SHA-1: 39748debaad1c1b5d20caa112f468921a5f52332 SHA-256: 909a2f03efde657d554c0622f12768e7bfa82e0e9dc67edf35d8fbbc5c2d2bb0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as a link farm pointing to compromised WordPress upload directories, indicating a likely phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. Although no scripts were explicitly extracted, the structure and embedded URLs suggest it's designed to redirect users to external sites, potentially for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5560

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 https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/334732b3217bf2c5a2cda0f2617e4683/93576296707.pdf In PDF document text
    • http://amandatravel.com/userfiles/file/18589606644.pdfIn PDF document text
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/46bd96fa6fc4508b80be0878958c9ae9/79940102039.pdfIn PDF document text
    • https://bczenekar.hu/files/file/73600831548.pdfIn PDF document text
    • https://tlproduct.com/userfiles/file/zunabufenifixosumej.pdfIn PDF document text
    • http://aps-mes.com/files/file/37334531274.pdfIn PDF document text
    • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/440279ad04827bbd0dcc75e2ca2ceca8/norobupiwenuxukagutozeb.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/tps6s6f58i4530eob8g4jbm137/66238647788.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/16080223b93c67---tagujevemavepamige.pdfIn PDF document text
    • http://www.asslar.de/downloads/47290499838.pdfIn PDF document text
    • https://vydavatelstvoklett.sk/userfiles/file/xuraparakojumegebidex.pdfIn PDF document text
    • http://3asoft.vn/img/files/fobuvodexigabiwetevesavad.pdfIn PDF document text
    • https://sikanderajam.com/Robinson/ckfinder/userfiles/files/11942623166.pdfIn PDF document text
    • https://mlmrockstars.com/ckfinder/userfiles/files/momowigomidakeviwugemowi.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b82e06691---83188279686.pdfIn PDF document text
    • http://kasintorn.com/images/upload/files/manemuluwavigofiwiro.pdfIn PDF document text
    • https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/15d34308b40454b66d09fb6dbd21a530/zifupomudusewir.pdfIn PDF document text
    • https://residenciasanamaro.es/userfiles/files/5296979484.pdfIn PDF document text
    • http://walker-doss.com/clients/4/45/450b4a4af5ff3f13851793278d9c7ef8/File/bojir.pdfIn PDF document text
    • http://loveperfectionschool.com/upload/file/sidujewinenetilamomixa.pdfIn PDF document text
    • http://faradbox.pl/files/file/84305874565.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b16dd3a290e---40660728575.pdfIn PDF document text
    • http://bienbao.net/uploads/files/xujiboxerodizi.pdfIn PDF document text
    • https://nic-n-nate.com/files/files/54265726340.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3t8o52racfcva5egodo0qs8vt2/43161721502.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=wildfires+ielts+reading+answersPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.