Malicious PDF — malware analysis report

Static analysis result for SHA-256 750bf3b9fed40dcc…

MALICIOUS

PDF

65.2 KB Created: 2021-06-20 11:17:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 22569023bfe940717bdbc089d602e202 SHA-1: c22567dcd27f8d53a552c5509c625d134f98db52 SHA-256: 750bf3b9fed40dcc7ba92e86ffa787099d925310a168496ace4460b6168d7ac5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links to external websites, many of which appear to be hosted on compromised WordPress installations. The document body, though heavily obfuscated, suggests a lure related to downloading movies. The presence of numerous external links and the ML classifier's high confidence score indicate a phishing or malware distribution attempt. No scripts were extracted from this sample, but the overall structure and URL patterns are consistent with a phishing campaign designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9677

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://irlanc.ru/uplcv?utm_term=your+name+full+movie+download+english+subtitles PDF link annotation
    • https://harkakotony.hu/UserFiles/file/pujekovobid.pdfIn PDF document text
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c609a6f82c---gozozaxozegexalezimuwuto.pdfIn PDF document text
    • http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160c0900ba5d6d---rokezeluzotixu.pdfIn PDF document text
    • https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/8ier55jfn35a293o3inunbo8g3/40881379029.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5efa1077be---bafamuzesoguwari.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e5b30c3e9f---dokegig.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c000ec053a3---96317587638.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160892c5cb572b---78315771449.pdfIn PDF document text
    • https://iwnta.com/userfiles/file/51550715986.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606f145018139---notofuvo.pdfIn PDF document text
    • http://przedszkolenisko.pl/userfiles/file/waziror.pdfIn PDF document text
    • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/t9mflhtmj4lrejril42ij0vkhp/13836572340.pdfIn PDF document text
    • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/7qfb4k7dug84ckd82p9m1njcs92il3uv/dojif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADE 5576 bytes
SHA-256: 7d233d1b2e255d6ca8de188471aa322f1917ac11ccd641b62ec583c0f6d3d3fb

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