Malicious PDF — malware analysis report

Static analysis result for SHA-256 208eda2c7f44058e…

MALICIOUS

PDF

56.8 KB Created: 2021-09-18 15:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: bf77f14d9978739141a7d318b987fff9 SHA-1: c6b27d142911c3657346684a9ad328f39b359979 SHA-256: 208eda2c7f44058e48383e55150d80082664adc894d481b16d478efbf4c0c90d
182 Risk Score

Malware Insights

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

This PDF file contains embedded JavaScript and numerous external links, many hosted on compromised websites or disposable domains. The heuristics indicate it's an image-based lure, suggesting the user is expected to click through to an external resource. The embedded JavaScript and link farm structure strongly suggest the intent is to redirect users to malicious sites for phishing or to download further payloads. ClamAV also identified this as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6398

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 56 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 https://huntic.ru/uplcv?utm_term=trollface+quest+2+unblocked PDF link annotation
    • http://chukysovin.com/img-svc/files/91663790601.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137db076249a---podaparalipezodatiluzera.pdfIn PDF document text
    • https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/78091479112.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/02da411755b2c0bcb10a1627024e5a1e/12633951552.pdfIn PDF document text
    • http://htbestcomputer.com/media/ftp/file/meluvegepaxefekolome.pdfIn PDF document text
    • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/ienks54qvj88rpai73kgefhgv3/50161256664.pdfIn PDF document text
    • https://woft-dining.com/webroot/editor-uploads/files/39226464696.pdfIn PDF document text
    • http://urbanconstructions.org/images/uploadedimages/file/jofevobibexutatitefamipe.pdfIn PDF document text
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613ecf54c99bc---82518594063.pdfIn PDF document text
    • https://jss-moms.si/upload/File/33584932816.pdfIn PDF document text
    • https://kamhosting.nl/ckfinder/userfiles/files/bifapilusudeteko.pdfIn PDF document text
    • http://baodieptailor.com/uploads/2021-09-12/images/files/17698336684.pdfIn PDF document text
    • http://maymaygiaydachidang.com/upload/files/33152411655.pdfIn PDF document text
    • http://vxclouds.com/userfiles/file/7876660314.pdfIn PDF document text
    • http://quiltingacademy.com/fckeditor/userfiles/file/46318623654.pdfIn PDF document text
    • http://singer-island-condos.com/userfiles/files/lemewijafusuzuja.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/02bafe665598d3c0e7045fd4b3762921/20721463946.pdfIn PDF document text
    • http://marketypik.pl/zdjecia/fck/file/zafidukotej.pdfIn PDF document text
    • http://elitaliaweb.it/upload/file/pariwubuzugavuse.pdfIn PDF document text
    • http://deaprogettazioni.it/userfiles/files/8746149571.pdfIn PDF document text
    • https://www.bankkartya.hu/js/ckfinder/userfiles/files/43472636138.pdfIn PDF document text
    • http://gardenofsound.com/userfiles/files/dajuxunotusopuvebelizoru.pdfIn PDF document text
    • http://www.anclupnapoli.it/userfiles/file/37735619187.pdfIn PDF document text
    • http://penzionnakrizankach.cz/ckfinder/userfiles/files/35925372314.pdfIn PDF document text
    • https://inmaabiladi.com/userfiles/files/tepono.pdfIn PDF document text
    • https://kawanmto.net/contents/files/36976041201.pdfIn PDF document text
    • https://bouveau-consulting.com/userfiles/file/46910922015.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b54d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB54D 10936 bytes
SHA-256: be5c66ee9a7b737b7e6452aded19c1268d5a2f2669bb37de2f0da71c729b149f