Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f71867d8d81bcd…

MALICIOUS

PDF

73.4 KB Created: 2021-09-13 06:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 15601fe9ef836cdd7781557569513b70 SHA-1: f5f6fbad7224b879ee750f35feec5118cf88727b SHA-256: 92f71867d8d81bcd19b3b07e67bb187ae1d68dab80f19a5260b56a134889eb99
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicate a strong attempt to direct users to external, potentially malicious, websites. Although no scripts were explicitly extracted, the nature of the heuristics suggests the PDF's primary function is to act as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5802

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://invismortgagebroker.com/images/file/ragorolatu.pdf In PDF document text
    • http://a-aqua.fr/ressource/site-image/files/ponosexifuxirawi.pdfIn PDF document text
    • https://balticstroy.com/uploads/files/tasadanenekopuxaw.pdfIn PDF document text
    • https://www.hippocratio.gr/ckfinder/userfiles/files/81729209949.pdfIn PDF document text
    • https://limblength-sldf.com/userfiles/file/13622833635.pdfIn PDF document text
    • http://mrpokedb.com/uploads/files/3682241748.pdfIn PDF document text
    • http://studiofelician.com/userfiles/files/jukufaxikaripalovewikajo.pdfIn PDF document text
    • http://stressmanagement-karriere.de/userfiles/file/82657951463.pdfIn PDF document text
    • http://sochi-vitrazhi.ru/ckfinder/userfiles/files/jejufakazija.pdfIn PDF document text
    • http://artdealer.vn/upload/fckimagesfile/efdeb65402e7657f7297fb7e2eed43e8.pdfIn PDF document text
    • http://coachhouse.info/assets/file/bodasiti.pdfIn PDF document text
    • https://sabresources.com/FCKuploads/file/9791018094.pdfIn PDF document text
    • http://inciboya.com/resimler/site/files/dogizadexem.pdfIn PDF document text
    • http://costruzionibulagna.it/userfiles/files/waruxemobuxitilabivowip.pdfIn PDF document text
    • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/61029070896.pdfIn PDF document text
    • http://vakantie-noordlimburg.nl/ckfinder/userfiles/files/30145149427.pdfIn PDF document text
    • https://dentalrud.com/userfiles/file/bonemirojuruwejukez.pdfIn PDF document text
    • http://alphasigmaoverseas.com/userfiles/file/47012777892.pdfIn PDF document text
    • http://domainecomps.com/documents/files/12170097360.pdfIn PDF document text
    • http://tatishev.ru/admin/ckfinder/userfiles/files/golefow.pdfIn PDF document text
    • https://saleskerala.com/ckfinder/userfiles/files/40073571335.pdfIn PDF document text
    • http://bojovesporty.cz/userfiles/file/motudokolosedonipatufew.pdfIn PDF document text
    • https://www.hippocratio.gr/ckfinder/userfiles/files/jomepajajuzuz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=clash+of+clans+wall+upgrade+cheatPDF link annotation