Malicious PDF — malware analysis report

Static analysis result for SHA-256 b87f709b96af89d1…

MALICIOUS

PDF

78.1 KB Created: 2021-09-05 07:04:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 6713e45e2d754b09ad8f37236f49af73 SHA-1: 6225f88c630c9e5292337f123fef36f0815f904d SHA-256: b87f709b96af89d1c8686d97f5894e63c6d9c92747ca2f90df0f716c370edef0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to multiple compromised CMS upload storage locations, indicating a phishing or malware distribution attempt. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. Although no scripts were explicitly extracted, the structure suggests it's designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3663

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://duz-drustvo.si/uporabnik/file/32004074713.pdf In PDF document text
    • http://italiangreyhound.pl/img1/userfiles/file/gogekowamijipakevano.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/26i3l7ugkcqvpbp9f1f4mi46b7/winewijisuliza.pdfIn PDF document text
    • http://szentdorottyapatika.hu/files/34229273817.pdfIn PDF document text
    • http://vencedor.coop/images/admin/file/66515493623.pdfIn PDF document text
    • http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/razulixukiduzarerezir.pdfIn PDF document text
    • http://www.ortodonciaelisafarache.com/ckfinder/userfiles/files/28607386876.pdfIn PDF document text
    • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/8f7fcdee2d759572c9bf750fc73c9318/sodisoru.pdfIn PDF document text
    • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/49527411718.pdfIn PDF document text
    • https://tekartltd.com/upload/files/lulukuvaxo.pdfIn PDF document text
    • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/c040ef2241632ea3f6fcf6338277a32c/refivuxamajegifomix.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/b75a782d68f167e99d65f67e60e39861/71316868670.pdfIn PDF document text
    • http://www.reenactmentmarket.eu/images/wyswig_images/file/94882403581.pdfIn PDF document text
    • https://mintedimages.com/ckfinder/userfiles/files/dutidolajemeb.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/260916096696.pdfIn PDF document text
    • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/b5ql7rdpf3eqdm2r936ii96rk2/22578695457.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c36f8e18eb2---80898636314.pdfIn PDF document text
    • http://sashtraayurveda.com/ckfinder/userfiles/files/navagalutedevisaranireju.pdfIn PDF document text
    • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/9ejadt0b22bktibqkqcl269735/31379766099.pdfIn PDF document text
    • http://doctour.hu/uploads/ckfinder/userfiles/files/28752589758.pdfIn PDF document text
    • http://laureysnv.be/uploads/files/jojufejibubeno.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160941788f106f---57023862022.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/3m1ul5i2v7o2e48v2u9t2hkolh/95763647510.pdfIn PDF document text
    • https://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/gnqev2elme6drviri8dv0l1fe7/74706058112.pdfIn PDF document text
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/79sh7o3qig43kor0djc7vcnh62/ridipalimipob.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=drogas+narcoticas+pdfPDF link annotation

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