Malicious PDF — malware analysis report

Static analysis result for SHA-256 920f048c654f8676…

MALICIOUS

PDF

47.7 KB Created: 2021-09-16 15:32:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 57aa08e479a525540bab0f048384eb61 SHA-1: d0e0a971964ccc76986dca5c5ed6c09fe2fa7aa4 SHA-256: 920f048c654f86761761aebd1b360f7ed29f64f6a6936fa70184b7605c5597ed
132 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and multiple external URIs pointing to a link farm hosted on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to exploit vulnerabilities or redirect users to phishing sites. The embedded JavaScript is likely used to facilitate the exploitation or redirection process.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6210

Heuristics 5

  • 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.
  • 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://smidgel.ru/uplcv?utm_term=project+igi+android+download PDF link annotation
    • http://aatmicscience.org/asuserfiles/file/dixozokofa.pdfIn PDF document text
    • https://nabil-doukali.com/userfiles/file/xexujupelojivu.pdfIn PDF document text
    • http://directartdeal.com/uploaded_files/userfiles/files/56962581217.pdfIn PDF document text
    • http://greenbiotech.vn/uploads/userfiles/file/2983588511.pdfIn PDF document text
    • https://webmakler.org/userfiles/file/josexeguvigufikikotatola.pdfIn PDF document text
    • http://ecohort.com/userfiles/files/61166932722.pdfIn PDF document text
    • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ffc26a4aee---43304975906.pdfIn PDF document text
    • http://www.hkimm.hk/_bin/ckfinder/userfiles/files/tosetafowejatilobifison.pdfIn PDF document text
    • http://ajarnveerapong.com/UserFiles/file/31061543123.pdfIn PDF document text
    • http://adasbruiloften.nl/userfiles/file/betenedegiforek.pdfIn PDF document text
    • http://arhive.np-sp.ru/img/file/75695556544.pdfIn PDF document text
    • http://uco-kampen.com/media/files/mukapesurefake.pdfIn PDF document text
    • http://farashimirooz.com/files/96178604951.pdfIn PDF document text
    • http://gurolmumcu.com/userfiles/file/bizudinivuzexi.pdfIn PDF document text
    • http://smartraoptics.com/fck_filemanager_upload/file/bebuxewizokatiwif.pdfIn PDF document text
    • http://bangkokmagnetwire.com/ecodev_test/image_system/files/tililit.pdfIn PDF document text
    • http://lexprikson.com/admin/style/images/userfiles/file/10087136822.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/161321b1392f49---magizifuzokirewod.pdfIn PDF document text
    • https://hattshopping.com/admin/assets/images/ckfiles/38895813041.pdfIn PDF document text
    • https://i-chat.tw/js/ckfinder/userfiles/files/4323870743.pdfIn PDF document text
    • http://newo.ru/files/files/79684151380.pdfIn PDF document text
    • http://solarwindependence.com/ckfinder/userfiles/files/83372834281.pdfIn PDF document text
    • http://zagazzo.com/userfiles/file/wejirola.pdfIn PDF document text
    • https://ljlconst.com/admin/images/file/38470445731.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/zixado.pdfIn PDF document text
    • http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210905171302.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

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