Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cfbdf047261d518…

MALICIOUS

PDF

62.4 KB Created: 2021-07-07 14:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: a8c873b279f1b4a25f81c68b226651fb SHA-1: 48fde2c9af481b845c8f5897df3dda7021aeb5e9 SHA-256: 2cfbdf047261d5182a0643ee01fd72dc314441ccf9a9d422e63bf5223201d638
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm, with many URLs pointing to compromised CMS upload directories. This suggests the document's primary purpose is to redirect users to potentially malicious content hosted on these sites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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 http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6f0172c02---lesugizaxagusigowulo.pdf In PDF document text
    • http://jtipartner.com/ckfinder/userfiles/files/wefiwovijisegazo.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/tupna1lp57cd7b2n2ktg0ukh8i/zawoz.pdfIn PDF document text
    • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/3a19edbaaeab04f32be9aa52f9f76162/96083084719.pdfIn PDF document text
    • http://tipiland.net/upload/file/juboxab.pdfIn PDF document text
    • https://didacostruzioni.it/userfiles/file/rijixikut.pdfIn PDF document text
    • http://hum-lucknow.org/test/fckeditor/file/830368067.pdfIn PDF document text
    • https://fa-vietnam.com/webroot/img/files/lefaperejot.pdfIn PDF document text
    • https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/05a80a75bc7649e8a4904ad9545bac76/51447568697.pdfIn PDF document text
    • https://cpsguffanti.com/uploads/file/91384829697.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/def9b7e4ba852ed9fe5557eb203919eb/27489347041.pdfIn PDF document text
    • http://beiks.info/public/file/nuloguka.pdfIn PDF document text
    • http://cichanski.com/Upload/file/72606671696.pdfIn PDF document text
    • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/73ac8226b48cc9cfa705ee50125099c8/60963079272.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/7f169384ea1fa19998078eeb25abec75/93383738522.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3f0d2b3912---40049102370.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160799eb5c44ae---kibilenuxi.pdfIn PDF document text
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160e310346b09f---1347938079.pdfIn PDF document text
    • https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/997cccdde7d57868a5bca871acd2deb8/xafojenapal.pdfIn PDF document text
    • http://www.deopendeur.org/imgUser/file/lirozujorirudewuvifaxuja.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/i706v3coeh4liqsvohvt97a5gc/mawogifezak.pdfIn PDF document text
    • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/30bf703fcb98eb06aeebfc23b4437a3d/60258433703.pdfIn PDF document text
    • http://geasit.it/userfiles/files/pazomene.pdfIn PDF document text
    • http://laduses.nl/image/file/wukujogemosugoji.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=poverty+as+a+challenge+questionsPDF link annotation

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