Malicious PDF — malware analysis report

Static analysis result for SHA-256 578c5119ae585a6f…

MALICIOUS

PDF

64.0 KB Created: 2021-07-14 11:00:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: decb4160f733560746db14cb6a864a85 SHA-1: d413f716dd99dd2982e51eec64d1e5c2186bfd71 SHA-256: 578c5119ae585a6fa971fa4f65f1e9347d0e713dccd1c2f4c475d2bfeda430ad
124 Risk Score

Malware Insights

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

The file was detected as a phishing trojan by ClamAV, indicating malicious intent. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of multiple PDF links further supports the phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3846

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 http://beerskiboot.de/img/upload/file/9143289437.pdf In PDF document text
    • http://france-ex.com/images/blog//file/47466746719.pdfIn PDF document text
    • https://economiadecomunion.com/ckfinder/userfiles/files/75635689510.pdfIn PDF document text
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adf0363a5e5---rolesefuvovejat.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160946ac3e1ea6---vakawodoxitolunor.pdfIn PDF document text
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9a578b97f---77798863461.pdfIn PDF document text
    • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/e6e5f644a0b219d5a800537adc4aa287/61347101932.pdfIn PDF document text
    • http://palaciodelosnavas.com/userfiles/file/novafipaxudozado.pdfIn PDF document text
    • https://nada70.org/userfiles/file/35137075235.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/qmik0p6rd6p06t8abrvrgvukb5/47746214280.pdfIn PDF document text
    • http://moderncarrent.com/user_img/files/gifujowifakip.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/basolozozavu.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090bdf110a41---gatemefezojem.pdfIn PDF document text
    • http://www.radio-kum.si/data/files/wudabesibojefesugaso.pdfIn PDF document text
    • http://dringraldi.com/clients/7/73/73ccc230e5ee2b020474e4a43bcd07af/File/tubilon.pdfIn PDF document text
    • https://euinsuti.ro/app/webroot/files/userfiles/files/69773863398.pdfIn PDF document text
    • http://sun-tes.ru/files/file/57839657759.pdfIn PDF document text
    • http://bluiettgriffinwilliams.org/clients/2/2a/2accc941c041fffeac9751862bb8fe41/File/tegasesu.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160bd49cd8719c---1018323169.pdfIn PDF document text
    • https://ofertaromania.ro/ckfinder/userfiles/files/wifirotuvaripopebevogok.pdfIn PDF document text
    • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609be99e8dc81---74438568013.pdfIn PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/dbcbq9r63hf9e2k5dcrh4jarmi/91510854302.pdfIn PDF document text
    • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/86f0plsa6jtaghkdf5temgpa97/kirezorividalefo.pdfIn PDF document text
    • https://aquafilling.com/userfiles/file/bukusajikewager.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6b0feb42d---34011277480.pdfIn PDF document text
    • http://learnazia.com/fck/imagesfile/texojufawit.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=superior+to+mediocrity+meaningPDF link annotation

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