Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f3e9e83615254f…

MALICIOUS

PDF

48.0 KB Created: 2021-09-25 21:17:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 14fd51e67d53703eafdec1dede6ba618 SHA-1: db3b4cb919ab0a89d065c618df1a2aa80d8e0010 SHA-256: 00f3e9e83615254fde4f05d30d6e3dbd68c492df35e29ee451ba2f226def92a8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1055.012 Process Injection T1204.002 Malicious Link

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a link farm with numerous URLs, many hosted on compromised CMS platforms, designed to redirect users to potentially malicious sites. The presence of external URIs and link farm heuristics strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

Heuristics 5

  • 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.
  • 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://coretry.ru/uplcv?utm_term=imo+audio+video+call PDF link annotation
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f0c8b3e8d0---32076388338.pdfIn PDF document text
    • http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/15620351916.pdfIn PDF document text
    • https://ip-pharma.net/data/files/xitewegawiposa.pdfIn PDF document text
    • http://kursverwaltung.fit-n-essen.ch/ckfinder/userfiles/files/fivifug.pdfIn PDF document text
    • http://cgmorenanews.com.br/ckfinder/userfiles/files/4670894543.pdfIn PDF document text
    • https://paintingwithapassion.com/nbloom/fckuploads/file/89854480737.pdfIn PDF document text
    • http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/nivumisolasuwizum.pdfIn PDF document text
    • http://xn----0tbbbfo0f.xn--p1ai/userfiles/file/vigaxeponididuxemusid.pdfIn PDF document text
    • https://cfaegaianascente.pt/portal/userfiles/files/wusevejaxeju.pdfIn PDF document text
    • http://kimhoatra.vn/upload/fckimagesfile/figosewenixedevines.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135f4f34414c---zajudanijunexazeduxoguxin.pdfIn PDF document text
    • https://zzwgjx.com/d/files/69144000086.pdfIn PDF document text
    • https://whatshoulditcostme.com/userfiles/file/38420634836.pdfIn PDF document text
    • https://himalayanespresso.com/espresso_ckfinder/userfiles/files/buwag.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/35526496095.pdfIn PDF document text
    • http://aptekadc.pl/userfiles/userfile/79263611989.pdfIn PDF document text
    • https://aljazeerahdrilling.com/userfiles/files/81616544839.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/bgs7avg5018lk36bg7vgc3fbsk/zenakumozit.pdfIn PDF document text
    • http://sangjeom.com/userfiles/file///busiv.pdfIn PDF document text
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143206338f77---81683104767.pdfIn PDF document text
    • http://7sate.com/filespath/files/20210915202835.pdfIn PDF document text
    • http://vizit-k.net/uploads/editor/files/fokikavoxirez.pdfIn PDF document text
    • http://tcyy88.com/userfiles/file/2021In PDF document text