PDF malware analysis — malicious · 3270fde54c03262d

MALICIOUS

PDF

37.6 KB Created: 2021-07-20 13:49:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21

MD5: d3092feed0627e43fe99858956c94ceb SHA-1: 0140bd10ef856be529076258147d84907c39ece7 SHA-256: 3270fde54c03262ded4f4609c6b72d10dff25da1ababb1c4c9ec2796c0bb3baa

174 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size, image-heavy content, and embedded links pointing to potentially compromised websites. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded links are designed to redirect users to external sites, likely for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.7998

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 37 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/7b95bf5ea0b6804fd9f78bd11068bd7d/57543075408.pdf In PDF document text
- http://euredit-editions.com/userfiles/file/wapomojepo.pdfIn PDF document text
- http://campfirewtx.org/userfiles/file/loxul.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ff1376c74---bofogutogiwigalojakabuvew.pdfIn PDF document text
- http://aptchasers.com/FCKeditor/userfiles/file/32678378003.pdfIn PDF document text
- https://flexrocksrollovers.com/wp-content/plugins/super-forms/uploads/php/files/jmfufo77nrrrh68qudemr1srtk/39298805641.pdfIn PDF document text
- http://antifftech.com/uploadfile/file///2021060815204028.pdfIn PDF document text
- http://exima.kr/userData/board/file/77271267713.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c1fc027dfbc---tuwasen.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=playboy+magazines+the+collectors+and+dealers+price+and+identification+guidePDF link annotation

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