Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae13543c6ceac414…

MALICIOUS

PDF

46.7 KB Created: 2021-09-09 02:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 4b2eb4e9f699c1f1142e6835249288f8 SHA-1: e47d539dfe563d0761f07aabfce9d268372195e8 SHA-256: ae13543c6ceac4140b4040f0d25b1e0b51e17571f5bbc65313755f8deaddb25d
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external links, many pointing to compromised or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware. The presence of embedded JS and a link farm suggests an attempt to exploit users through deceptive redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7471

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://shepardinteriordesign.com/rw/upload/file/55696750574.pdf In PDF document text
    • http://rosabaum.de/web/editor/files/tifekikorusafobijubetewid.pdfIn PDF document text
    • https://novahealthclinic.ca/userfiles/file/52406665327.pdfIn PDF document text
    • http://istanbulballoons.com/ckfinder/userfiles/files/72872621554.pdfIn PDF document text
    • http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/2968671229.pdfIn PDF document text
    • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/47971002036.pdfIn PDF document text
    • http://ccadl.com/files/20210908075153.pdfIn PDF document text
    • https://kudamatsu.org/userfiles/file/12100006191.pdfIn PDF document text
    • http://twozonechickenlasvegas.com/uploads/files/vuvuzinelimafokifax.pdfIn PDF document text
    • http://suspensionestg.mx/userfiles/file/17905281081.pdfIn PDF document text
    • http://unite-chem.cn/upload/files/27791177053.pdfIn PDF document text
    • http://inwallendorf.de/userfiles/file/99413921231.pdfIn PDF document text
    • http://www.eatvirukai.lt/uploads/files/22945563657.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/a4db3d057c76f58a9edfe33868a38648/menuxawemizi.pdfIn PDF document text
    • https://eniedu.com/data/file/20210908021608.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16130ad611b9c8---84453275613.pdfIn PDF document text
    • https://leanuslab.com/UserFiles/file/74771299233.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/ijgph0rdnt9v7j9bjf8o27u718/3316278550.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1eedcc9a7---42295214572.pdfIn PDF document text
    • http://timnhanhonline.net/upload/files/seguxibag.pdfIn PDF document text
    • http://t-eamplus.de/web/editor/files/guzebolito.pdfIn PDF document text
    • http://studiovalentini.eu/userfiles/files/80910381433.pdfIn PDF document text
    • http://safarang.com/basefile/files/3237429637.pdfIn PDF document text
    • https://gianlucabruno.it/dati/upload/file/lepoganas.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=pubg+lite+emotes+hackPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.