Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b87dfe9336fd7ac…

MALICIOUS

PDF

149.6 KB Created: 2021-09-07 23:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 7c1d265cc5b4a07ae56d12d58041aaaa SHA-1: 8b12996a089a3f52078504dc88c10ff6644289f7 SHA-256: 7b87dfe9336fd7ac9a1b61404cda6d9f5ab570482a991cf3e8e626ceff68a00e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs pointing to various domains, many of which are hosted on compromised CMS upload storage or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of a link farm on potentially untrusted domains suggests an attempt to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9436

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://albawadiroad.com/userfiles/files/berev.pdf In PDF document text
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/7agg2qirk7ilupm0e9t9mb0fe0/88322063425.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/xazifelitasinogasaz.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b0m0rhvrdaukkc5cg4of10biu1/44466812410.pdfIn PDF document text
    • http://lagerunda.it/public/upload/file/natejetodifodenakeririg.pdfIn PDF document text
    • https://kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/42964247041.pdfIn PDF document text
    • https://autoandtruckrepair.net/nbloom/fckuploads/file/6689332398.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c133ae86413---rumuvanofigazutotilafari.pdfIn PDF document text
    • https://stomatoloska-ordinacija-rijeka.com/files/1339712417.pdfIn PDF document text
    • http://chatsworth72.com/clients/5/53/532ec3c8dc0e95779814939736d4df6d/File/pegeva.pdfIn PDF document text
    • http://business-baltic.com/myfiles/dok/81320764617.pdfIn PDF document text
    • http://lagunaapartman.hu/images/user/file/fezizadekuxuva.pdfIn PDF document text
    • http://abington1964.com/clients/865474/File/71312422005.pdfIn PDF document text
    • https://thinkhigh-tech.com/d/files/26537696247.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/frbl931f7u9bms54rhdonvs2tm/62352687678.pdfIn PDF document text
    • https://himalayanthailand.com/image/upload/File/jojaxemotajupovobugoxo.pdfIn PDF document text
    • http://bi-acaovo.com/upload/files/kemuke.pdfIn PDF document text
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607e97371e477---kagut.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/fd20394f83189eee64a584ec97a64e76/dagovavozivininefegegu.pdfIn PDF document text
    • http://xn--b1adcbbai1bezln.xn--p1ai/content/File/88347148186.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=born+in+the+usa+tab+pdfPDF link annotation

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