Malicious PDF — malware analysis report

Static analysis result for SHA-256 49988ed7c54065c1…

MALICIOUS

PDF

40.4 KB Created: 2021-10-01 17:19:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: a217c56c0122f6f7ac00e5b6b4d44360 SHA-1: f35491597ec5b3271a4851f5e5b303391e301531 SHA-256: 49988ed7c54065c1cc50476247eb3c632baee206d1593ce8a7e48bf98556a3f8
144 Risk Score

Malware Insights

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

The PDF is identified as a phishing lure due to its small size, image-heavy content, and embedded clickable links. The ML classifier and ClamAV detection strongly indicate malicious intent. The document likely aims to redirect users to malicious sites for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7798

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
  • 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 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://toyotaautobody.com/ckfinder/userfiles/files/40242598726.pdf In PDF document text
    • http://pachinkoevent.com/sites/default/files/file/51697350447.pdfIn PDF document text
    • http://massarentearchitettura.com/userfiles/files/2048431622.pdfIn PDF document text
    • https://pavillonwohlen.ch/userfiles/files/dijafuvefinifilab.pdfIn PDF document text
    • https://skillmapmagazine.com/ckfinder/userfiles/files/92806890.pdfIn PDF document text
    • http://chieucoingason.vn/files/93845399625.pdfIn PDF document text
    • http://gildiamasterov.ru/userfiles/file/wizovogusalusovof.pdfIn PDF document text
    • http://cncsprings.com/d/files/gerelizojanakigogeri.pdfIn PDF document text
    • http://ibrahimalsada.com/pics/file/latowefokilopiwofom.pdfIn PDF document text
    • http://www.la-rocca.pl/app/webroot/files/files/gepajupipadazujujivopidaw.pdfIn PDF document text
    • http://bestbuyfromindia.com/userfiles/file/92883298016.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/d9e6fdfa57fc20c363463aa6cbba48f7/76656008488.pdfIn PDF document text
    • https://happycolaborativo.com/uploads/files/rikaxezi.pdfIn PDF document text
    • http://d-a-s.cn/userfiles/file/80655607189.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1615619f495356---33453546685.pdfIn PDF document text
    • http://officegate.biz/admin/fck_upload/file/filujibufuradavufune.pdfIn PDF document text
    • https://ubk-sad.de/azubi/userfiles/files/pabipal.pdfIn PDF document text
    • http://xinchenfast.com/upload/file/dakuzadunirutadevadawu.pdfIn PDF document text
    • https://gestcargo.com/uploadfiles/file/13257276269.pdfIn PDF document text
    • http://damnoen.com/ckfinder/pho/files/paboretu.pdfIn PDF document text
    • https://nghiepvu.udicmanpower.vn/uploads/news_file/17623975900.pdfIn PDF document text
    • http://eros-arena-reutlingen.de/eros/userfiles/file/18370028236.pdfIn PDF document text
    • http://4226080.kad.tw/kads/ckfinder/userfiles/files/7432110824.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=how+to+take+screenshot+in+galaxy+a5PDF link annotation

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