Malicious PDF — malware analysis report

Static analysis result for SHA-256 faab163e6cbd2803…

MALICIOUS

PDF

47.7 KB Created: 2021-09-26 01:35:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 86ca0b76868cedc366da00ae2a60b818 SHA-1: 2d0c3754d8cd1d80317bc84e1fc9d939b1e7df59 SHA-256: faab163e6cbd2803bdf2a847b8e5f65f227f3f0f1aa00ace23ba88ae6c1931fd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the link farm indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6441

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://catamma.ru/uplcv?utm_term=black+panther+online+streaming PDF link annotation
    • http://viprealestatebrokers.com/userfiles/files/tukigarizikexedado.pdfIn PDF document text
    • https://luxurybaths.marblobaths.ph/app/webroot/img/files/kopabisasogizusamupigi.pdfIn PDF document text
    • https://kalitelivideoizle.com/resimler/files/xuxebonidonivufusekufu.pdfIn PDF document text
    • http://goldia.cz/data/file/pavaxixomopegamiwog.pdfIn PDF document text
    • http://heyumpnd.com/userfiles/file///gebabejisuzifeno.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/28281030392.pdfIn PDF document text
    • http://saigonford3s.com/uploads/2021-09-06/images/files/78432730436.pdfIn PDF document text
    • http://abogadosaguilar.com/ckfinder/userfiles/files/27773594927.pdfIn PDF document text
    • http://frutapac.com/ckfinder/userfiles/files/biluvupixabinafiso.pdfIn PDF document text
    • http://jhdjt.com/images/upload/File/72272137185.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4ce382638---bewuni.pdfIn PDF document text
    • http://garderoba.sk/images/_file/ferasevevibawajukoko.pdfIn PDF document text
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/ec420a8fc9879335a61ee66c14d1c844/xasagasopo.pdfIn PDF document text
    • https://yptea.com/data/fckeditor/files/gunak.pdfIn PDF document text
    • http://evrokomplekt.ru/userfiles/file/taxakusig.pdfIn PDF document text
    • http://yanartekstil.com/firma/files/31748922977.pdfIn PDF document text
    • https://patc.fr/imagesfile/rovuruveme.pdfIn PDF document text
    • https://jin-ji.com/upload/files/39607045033.pdfIn PDF document text
    • http://klgd.spokoino.ru/i/upload/files/89292311919.pdfIn PDF document text
    • http://westernmaki.com/uploads/files/36047511336.pdfIn PDF document text
    • https://relaxbotanika.cz/ckfinder/userfiles/files/vivitotumibitusa.pdfIn PDF document text
    • https://friendsofmultisport.com/ckfinder/userfiles/files/tokunu.pdfIn PDF document text
    • http://rancholasmonturaspremios.com/campannas/file/zefijalavevepuginaw.pdfIn PDF document text
    • http://aan.kz/ckfinder/userfiles/files/19243450044.pdfIn PDF document text
    • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1614699d05806c---29711235846.pdfIn PDF document text

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