Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae3e3891dc6265ae…

MALICIOUS

PDF

58.1 KB Created: 2021-09-10 14:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 31743e5d19a1851b81fff9ee83adc03b SHA-1: 2197c9855806adf59a2f832e976c2a9a6bb2b8fb SHA-256: ae3e3891dc6265ae6adcca95ec59cba84e16f0ab3f8e85238f6c45dac1610b53
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, with one heuristic specifically identifying it as a link farm on disposable hosting. ClamAV detection and ML classification further indicate malicious intent. The presence of multiple external URIs suggests an attempt to redirect the user to malicious content, likely as part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lgassociates.in/uploads/dezirimozarasoniba.pdf In PDF document text
    • http://mskabel.cz/UserFiles/File/58043457150.pdfIn PDF document text
    • https://rt-totaalafbouw.nl/userfiles/file/93414993182.pdfIn PDF document text
    • https://przygodanaukrainie.pl/admin/ckfinder/userfiles/files/tasabavupodiminebubef.pdfIn PDF document text
    • https://www.acta-mobilier.fr/ckfinder/userfiles/files/bolibatujakago.pdfIn PDF document text
    • http://vibrobeton.by/pics/files/pulutew.pdfIn PDF document text
    • https://silverbirdmarketing.com/pages/images/file/gamefokofevodusipunur.pdfIn PDF document text
    • https://hondaotohaiphong.vn/upload/files/66561458490.pdfIn PDF document text
    • http://platypusspot.org/uploads/ckfinder/userfiles/files/lelazezatuketoxamulawus.pdfIn PDF document text
    • http://wimborst-ceramics.nl/public/view/upload/fckeditor_images/file/tufefafegidevibozofikiruj.pdfIn PDF document text
    • http://veterky.ru/ckfinder/userfiles/files/79484505792.pdfIn PDF document text
    • http://polimak.pl/userfiles/file/nuxol.pdfIn PDF document text
    • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16130a11c32e86---lugobakubolixosi.pdfIn PDF document text
    • https://akrmedia.no/ckfinder/userfiles/files/88859219030.pdfIn PDF document text
    • http://amidoux-peintures.com/ckfinder/userfiles/files/2123634513.pdfIn PDF document text
    • http://e-motyle.natura2000.pl/imgturysta/files/xigibi.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/kijox.pdfIn PDF document text
    • http://teamhead.net/userfiles/file/moridis.pdfIn PDF document text
    • http://synergytaekwondo.com/click2buy_newp/userfiles/file/mibobirejevisumiridoditez.pdfIn PDF document text
    • http://architettomontanino.eu/userfiles/files/turiso.pdfIn PDF document text
    • http://geo-equipe.it/userfiles/files/tobaxed.pdfIn PDF document text
    • http://bhartiyambeohari.in/userfiles/file/27750188532.pdfIn PDF document text
    • http://suliaox.com/v15/Upload/file/20219754517254.pdfIn PDF document text
    • http://tiquital.com/documentos/file/45936850797.pdfIn PDF document text
    • http://hdurmuslar.com/images_upload/files/xotegamaxujezobuk.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=games+like+ikariam+for+androidPDF link annotation