Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad2ac45ce73d6808…

MALICIOUS

PDF

62.2 KB Created: 2021-09-21 03:31:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: b9df026fc7d07affd080caafd68fc3aa SHA-1: 700194b457b01fe359b26d94bbd342cdce74948f SHA-256: ad2ac45ce73d6808ce952eea190eeca9ce489b4812da4dea474a05acce22d618
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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://garglob.ru/uplcv?utm_term=best+torrenting+app+for+android PDF link annotation
    • https://alhurwallpaper.com/Files/files/97321255534.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/161399941a4bf0---duxatufabolu.pdfIn PDF document text
    • http://mtreurope.com/ckfinder/userfiles/files/xumawetikixele.pdfIn PDF document text
    • http://liyangah.com/Upload/file/wopazebabuxosipu.pdfIn PDF document text
    • https://cjsc.se/ckfinder/userfiles/files/tojenogitebezazilolezuzux.pdfIn PDF document text
    • http://fukaofoods.tw/uploads/files/202109170719461011.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1614217a92afd3---47738375067.pdfIn PDF document text
    • https://hiroyoung.com/data/files/gawetasogunasofozekido.pdfIn PDF document text
    • http://faurau.com/luodan/images/userfiles/file/4689585908.pdfIn PDF document text
    • http://xn----7sbndn5at.xn--p1ai/uploads/files/26793202253.pdfIn PDF document text
    • http://uralteplostroy.ru/content/file/bomewowolawijitalubebe.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/f533c7166d3a68cb761afbf911a799e6/58180422972.pdfIn PDF document text
    • http://pobierzplik.pl/uploads/files/sekibovolevavijo.pdfIn PDF document text
    • http://gaudi.tw/upload/file/tesariselozadatomomux.pdfIn PDF document text
    • http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/rawokujow.pdfIn PDF document text
    • http://scouttautomotive.com/editor_uploads/system/files/riwefapemiso.pdfIn PDF document text
    • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/588cfa487c13de7a096c1c860b4b9197/63440001391.pdfIn PDF document text
    • https://fokusmedia.com/images/uploads/pegagokakisek.pdfIn PDF document text
    • http://ttc-investco.com/img/files/rawaliloxibefuvojig.pdfIn PDF document text
    • https://oolong-dining-co.com/webroot/editor-uploads/files/mafejotulozosuveso.pdfIn PDF document text
    • http://mfcwestenkwartier.nl/beta/userfiles/file/61583036467.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/70l52nqa9ki8d4hui05nmltbct/vuzirexeguno.pdfIn PDF document text
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16141235880085---67310445561.pdfIn PDF document text
    • http://cw-cut.com/uploads/file/85709403168.pdfIn PDF document text
    • https://easyown.ddproperty.com/datas/files/titosox.pdfIn PDF document text

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