Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c5f712c1f5dca8…

MALICIOUS

PDF

61.0 KB Created: 2021-10-01 15:35:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 8ad9ec21d32593831d7c1fbffa6ac67d SHA-1: 7238a2819652c7da9798db0850cf319d341f93e7 SHA-256: 46c5f712c1f5dca80806f494ba52bfb5153db41c546efbb3f9487e3137f09bec
154 Risk Score

Malware Insights

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

The PDF file contains a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The file's structure and embedded URLs are consistent with a malicious PDF designed to lure users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9121

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
  • 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://414movement.com/wp-content/plugins/super-forms/uploads/php/files/d25883698a5db5e96043798f9e5481cd/lixipo.pdf In PDF document text
    • https://dongciao.com/uploads/files/202109171505105995.pdfIn PDF document text
    • http://ticaproduce.com/ckfinder/userfiles/files/zirexuxikomuxudokovapip.pdfIn PDF document text
    • https://smsenerji.com/resimler/files/30500677061.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/27041838925.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1612f42bd47593---raroxi.pdfIn PDF document text
    • http://www.naraihillgolf.com/admin/userfiles/file/mometakumo.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/161323194e71a9---39318141133.pdfIn PDF document text
    • https://bursakaynak.com/userfiles/file/rejinis.pdfIn PDF document text
    • http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/65479564704.pdfIn PDF document text
    • http://ozgu-yapi.com/firma/files/49655269709.pdfIn PDF document text
    • http://tumwebthailand.com/ckfinder/userfiles/files/zuxok.pdfIn PDF document text
    • http://melodylavernebettencourt.com/media/file/takeka.pdfIn PDF document text
    • https://toptenstudy.com/upload/files/BodyFile__6134C4D18A28E.pdfIn PDF document text
    • http://longruiglass.com/ckfinder/userfiles/files/20210905_135237.pdfIn PDF document text
    • http://adidravidar.com/ckfinder/userfiles/files/26047382013.pdfIn PDF document text
    • https://delaneyllc.com/ckfinder/userfiles/files/wududebawarisaratov.pdfIn PDF document text
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/188f7950cc64609ca68e1af625c574d3/46877663112.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/ngeoisjntmmt5s5730vkh9p0l9/47713843319.pdfIn PDF document text
    • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141804cbef2a---ripovumupesaragokame.pdfIn PDF document text
    • http://trustarshida.co/cache/fck_files/file/88656093990.pdfIn PDF document text
    • http://navrattan.co/userfiles/file/86909796066.pdfIn PDF document text
    • https://slide-bearing.com/d/files/lapebatonivikiruwosifuxe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=youtube+not+working+on+android+tv+boxPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB308 18528 bytes
SHA-256: ecc3dfcdfbf8683be3c57637b142fc452494bb2dd7f33f0f0b2002f9bf465831

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