Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa855d06b7e8b0c0…

MALICIOUS

PDF

41.5 KB Created: 2021-09-03 21:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 35b7319e476e634282f46f5c0346a49d SHA-1: 837edacd0d0f40330be24e7305cdd002528ceabd SHA-256: fa855d06b7e8b0c0c9f7a6d56ec9311f16cde0c91a4e9b6ebd35f9f7c444968f
174 Risk Score

Malware Insights

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

This PDF document is identified as malicious by multiple heuristics and ClamAV, indicating it's a phishing or trojan delivery attempt. The PDF_IMAGE_LURE heuristic suggests it presents a screenshot to trick users into interacting with embedded links. Numerous URLs are present, many hosted on compromised WordPress sites, likely serving as landing pages or download sources for further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7328

Heuristics 6

  • 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 41 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.
  • 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://crewmak.ru/uplcv?utm_term=cimbali+m27+manual+pdf PDF link annotation
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c146d40344---44566459199.pdfIn PDF document text
    • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/opemlvgqrcaqhi5m7lk86ie82b/18577494443.pdfIn PDF document text
    • http://master-br.ru/img/file/zafunasusumel.pdfIn PDF document text
    • http://www.zaluziemalina.cz/userfiles/file/62154809428.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1d933add7---45015361064.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c75298cd24d---45619606280.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/942d6ce342578065f5af58a39b34c3f1/fukesesuletud.pdfIn PDF document text
    • https://jpjplumbingandheating.com/FCKeditor/file/raxefiluxoja.pdfIn PDF document text
    • https://treasurehunterdetectors.com/ckfinder/userfiles/files/8782301143.pdfIn PDF document text
    • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/42tg6q5dt1dfpft2r3ra8dideb/52119458226.pdfIn PDF document text
    • https://mgc.to/sites//web/upload/files/jowabuxepisu.pdfIn PDF document text
    • https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/a55ea083d538d3e86521c3d9add1937f/gewigotusabukumofovaxibum.pdfIn PDF document text
    • https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/0314e50ea20c676d6a03ba2221f4fbc3/79316558216.pdfIn PDF document text
    • http://t-p-fortune.com/userfiles/file/fifisebexekobozanoveli.pdfIn PDF document text
    • http://hjtech.org/admin/upfile/file/kozikolibiboremadaf.pdfIn PDF document text
    • https://eobliecky.sk/userfiles/file/rigolamabu.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e14ac9079e5---88061264031.pdfIn PDF document text
    • https://alkalacarservice.com/public_html/userfiles/file/88956630213.pdfIn PDF document text
    • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd551371999---79754911212.pdfIn PDF document text
    • http://mitsubishilongbien.vn/images/ckeditor/files/mijirivafitu.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c57edf9aac6---54487877499.pdfIn PDF document text
    • http://www.gabrielamaciel.net/images/content/file/38495186804.pdfIn PDF document text

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