Malicious PDF — malware analysis report

Static analysis result for SHA-256 8607ab352d51ad37…

MALICIOUS

PDF

64.0 KB Created: 2021-09-08 14:28:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-25
MD5: 1974d445bd174fa302651fee2ba40202 SHA-1: b11a32d00d5c705a2c176c19ecbe1de865066e46 SHA-256: 8607ab352d51ad370d10023e625af326c478055679f60956f241917a3e2872d6
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6381

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
  • 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 http://carshopm.com/js/upload/files/nanevebudarujo.pdf In PDF document text
    • http://pieseclimaauto.com/files/file/17319898027.pdfIn PDF document text
    • http://aeon-dev.com/uploads/files/202109080702321149.pdfIn PDF document text
    • https://idroilektriki.gr/files/file/sujalowagexovifazex.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b49867385---kutasev.pdfIn PDF document text
    • http://www.offshoreyachts.net/web_upload/editor/files/neguvaduxuduzatenerep.pdfIn PDF document text
    • http://retailcop.ca/files/mivopudilawubik.pdfIn PDF document text
    • https://hamasataccessories.com/userfiles/files/51208399029.pdfIn PDF document text
    • https://tideandtigers.com/ckfinder/userfiles/files/50580955771.pdfIn PDF document text
    • https://tch.lu/files/files/gowomikujuragifateg.pdfIn PDF document text
    • http://namhungholdings.com/uploads/ckfinder/files/79612278321.pdfIn PDF document text
    • http://turnwealthy.com/ckfinder/userfiles/files/30768926121.pdfIn PDF document text
    • http://jiab.net/userData/board/file/tofululituw.pdfIn PDF document text
    • http://isystemlab.com/admin/ckfinder/userfiles/files/27141162268.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea3ef89ec5---99213669603.pdfIn PDF document text
    • http://halanmilk.com/upload/files/17487706804.pdfIn PDF document text
    • http://eakqshop.com/ckfinder/images_store/files/16413414876.pdfIn PDF document text
    • http://twinmd.ru/userfiles/file/kokisubisarifajuwaboz.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/1261353518.pdfIn PDF document text
    • http://ore-processing.ru/d/files/77709103358.pdfIn PDF document text
    • https://sharenkon.com/files/nasinimefawabaximetizi.pdfIn PDF document text
    • http://dellalontra.it/userfiles/files/75679771120.pdfIn PDF document text
    • https://viceda.com/userfiles/file/37099358390.pdfIn PDF document text
    • http://mrtowing.ca/Lawyers/userfiles/file/69126391528.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=edward+de+bono+the+use+of+lateral+thinking+pdfPDF link annotation