Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f34656b604a8541…

MALICIOUS

PDF

63.6 KB Created: 2021-09-18 03:06:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 7f4144a10db4c128027d8b006c7b0c03 SHA-1: 4a76dcee6982c5003bf13cb7ad8622eb29fea33c SHA-256: 7f34656b604a8541f1fb9d0405bd14539fe89787e5e8ddeda0f5886a5bc1446e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which host other PDFs. This structure is characteristic of a link farm designed to obscure the ultimate destination and potentially distribute phishing lures or malware. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8034

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
  • 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://synerhu.ru/uplcv?utm_term=dog+walking+group+near+me PDF link annotation
    • http://fijiembajak.com/uploads/ck_uploads/files/67840231310.pdfIn PDF document text
    • http://tornyanggrace.com/upload/file/dibupiva.pdfIn PDF document text
    • http://xn--k1akb4c.xn--p1ai/userfiles/file/28277988791.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/zuzilesilotamokoru.pdfIn PDF document text
    • http://www.bongbansaigon.com/uploads/files/5093956943.pdfIn PDF document text
    • https://self-storage.sg/images/uploadedimages/file/64556593605.pdfIn PDF document text
    • http://factorycontrolprojects.com/userfiles/file/gavegalugonuvagibem.pdfIn PDF document text
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/715b9b81b82bf6d90706371dd72935a3/gebapunuxu.pdfIn PDF document text
    • https://on-call-anatomist.org/ckfinder/userfiles/files/xafedaxox.pdfIn PDF document text
    • http://myphamlulanjina.com/upload/files/rafoxadixewetorovabu.pdfIn PDF document text
    • https://losungversorger.com/product/file/jidamogakazatibodixeme.pdfIn PDF document text
    • http://ilink.pl/userfiles/file/89512186234.pdfIn PDF document text
    • https://agentcctv.com/userfiles/file/xavaxakif.pdfIn PDF document text
    • https://gruntbudowa.pl/files/file/vexemurotagijagewemutela.pdfIn PDF document text
    • http://eunlocker.com/Images/Editor/file/jixarabexixiberimonum.pdfIn PDF document text
    • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/2c9045a28e6034ac7842e9b968623009/bakofiwa.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/2kv2i98j9gb2al0bsnkvgeur32/18590309524.pdfIn PDF document text
    • https://organicearthfiji.com/documents/file/fazunorozufomufajigoja.pdfIn PDF document text
    • http://hytechplus.com/userfiles/file/53352869300.pdfIn PDF document text
    • https://iwanbim.com/userfiles/files/45814848784.pdfIn PDF document text
    • https://remont-bez-zabot.ru/files/file/rugizomanisuvuzavuvode.pdfIn PDF document text
    • http://pronobile.com/catalog/file/mukeratarikarevagi.pdfIn PDF document text
    • https://www.delaneyllc.com/ckfinder/userfiles/files/ginezozasedurob.pdfIn PDF document text
    • http://boxerdapolenta.com/cmsimple/images/file/77009340835.pdfIn PDF document text
    • http://hakasasi.id/userfiles/file/30495323525.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132687b54a83---dojukijuw.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/161450805a5aec---vasupubo.pdfIn PDF document text

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