Malicious PDF — malware analysis report

Static analysis result for SHA-256 bddfe17ba4763f55…

MALICIOUS

PDF

66.2 KB Created: 2021-10-05 17:05:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 63974d2fb55f7999fb63efdd314ac969 SHA-1: 2ed548c71ddb14010c644df6dac0b79f43ceb0c6 SHA-256: bddfe17ba4763f556658918d295b8bbeeb995231dc912a802ae6053c0dc789ea
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting and are part of a link farm. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious URLs, which are designed to host phishing content or further malware.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4829

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://garglob.ru/uplcv?utm_term=i+am+a+recovering+perfectionist PDF link annotation
    • https://peisheng.org/uploads/ckfiles/files/61494599c45e0.pdfIn PDF document text
    • https://aletihad-group.com/userfiles/files/rizix.pdfIn PDF document text
    • http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/vaxiketabopixe.pdfIn PDF document text
    • http://ijdssymposium.eu/upload/jasugun.pdfIn PDF document text
    • https://livre-art.com/ckfinder/userfiles/files/87606718838.pdfIn PDF document text
    • http://cukrarnakolbaba.eu/obrazky/files/51204765720.pdfIn PDF document text
    • http://tryinvest.eu/userfiles/files/navawozegubuzol.pdfIn PDF document text
    • http://coming-c.com/userfiles/file/86706471696.pdfIn PDF document text
    • http://huabulaw.com/uploadpic/2021-9/file/2021092518311773499.pdfIn PDF document text
    • http://sarkanyhajo.hu/files/file/34439428717.pdfIn PDF document text
    • https://fejlesztes.codefon.hu/js/ckfinder/userfiles/files/redazekedabu.pdfIn PDF document text
    • https://amthanhanhsangchinhhang.vn/upload/files/89514376912.pdfIn PDF document text
    • https://jahanchart.ir/data/files/file/semufawo.pdfIn PDF document text
    • http://thepartybooker.com/userfiles/file/gedamuxawigov.pdfIn PDF document text
    • http://prefinancovaniehypoteky.sk/res/file/pikenekuxegaverilu.pdfIn PDF document text
    • http://ellenia3.eu/userfiles/files/zotuwuli.pdfIn PDF document text
    • http://colonia-hausmeister.de/uploads/files/nejozijujixuzilibu.pdfIn PDF document text
    • https://alutat.com/data/file/42232862102.pdfIn PDF document text
    • http://uitetenindex.nl/images/uploads/fifatazapi.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d961eebffb---zotojeregarimijedom.pdfIn PDF document text
    • http://bestofbeer.ru/ckfinder/userfiles/files/49187532588.pdfIn PDF document text
    • http://mueblesdepladur.es/1/userfiles/file/49162755024.pdfIn PDF document text
    • https://hainutedecopii.eu/ckfinder/userfiles/files/bimuvibofa.pdfIn PDF document text
    • http://umutisi.com/umut/upload/files/fodovulijosazibiguzu.pdfIn PDF document text