Malicious PDF — malware analysis report

Static analysis result for SHA-256 d293d98d1c48d8df…

MALICIOUS

PDF

47.7 KB Created: 2021-09-28 01:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 1c06db6c6681f328356653267395406d SHA-1: 51cfbc01ac9cd29f0cad1beec7c7dce73013a5ff SHA-256: d293d98d1c48d8df4d3250b2823d7f4292b17300b86447035645b87123ca57ad
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, including a machine learning classifier and ClamAV, which identified it as a phishing trojan. The document contains a link farm pointing to various compromised CMS upload locations and disposable hosting, suggesting an attempt to redirect users to malicious sites. No scripts were extracted, but the overall structure and URL patterns indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6676

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://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/87307f19db6f790ca13a335f10098ee6/pizimugemalazexile.pdf In PDF document text
    • https://ezokniga.com/uploads/file/xipiwanidodudulexegojegid.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b668381a26---46189689258.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/46cbe67891c9affa84420d3fc940af6d/92091901008.pdfIn PDF document text
    • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161492a87ec809---zerosedexuxo.pdfIn PDF document text
    • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/64571ef00ab958ddb73ad357cdba2f59/17861465526.pdfIn PDF document text
    • http://mgtofubbq.com/uploads/files/xekigebajevup.pdfIn PDF document text
    • http://teplolux72.ru/upload/file/24118939435.pdfIn PDF document text
    • http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/baguraxofagilafamenanule.pdfIn PDF document text
    • http://etoprosto.ru/ckfinder/userfiles/files/61400667178.pdfIn PDF document text
    • https://choosetop.e-giant.net/fkupload/files/36125816666.pdfIn PDF document text
    • https://tvsporedi.si/vsebina/61768838950.pdfIn PDF document text
    • http://como.gattinonimondodivacanze.it/themes/userfiles/files/50355556831.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/5rau5rurpqi0taalk4ntd3osjp/wudur.pdfIn PDF document text
    • https://get.belonnanotservice.ga/away?/wp-content/plugins/formcraft/file-upload/server/content/files/1614fe84529e79---14317649571.pdfIn PDF document text
    • https://vatlieutaphu.com/upload/files/79636673933.pdfIn PDF document text
    • http://gildiamasterov.ru/userfiles/file/wojedewetemajetulubapo.pdfIn PDF document text
    • http://eatoceanic.iorderfoods.com/uploads/files/zasubetebumutoten.pdfIn PDF document text
    • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d29c96901d---69997960538.pdfIn PDF document text
    • http://guoyangmoju.com/userfiles/files/82678321399.pdfIn PDF document text
    • https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/ruwipunubebafomokujew.pdfIn PDF document text
    • https://getracemirates.com/userfiles/files/musabemugowefefudu.pdfIn PDF document text
    • http://ng-sons.com/userfiles/file/57721714124.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=come+sbloccare+telefono+androidPDF link annotation

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