PDF malware analysis — malicious · 2785c6a7e3234294

MALICIOUS

PDF

37.5 KB Created: 2021-09-07 04:37:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11

MD5: a2bad5b565baae5297f31191e20b1511 SHA-1: b75f1417926757ae3e7737f16a70cab5d3a61523 SHA-256: 2785c6a7e3234294373594eb25f65962f4b8a1d2031f76bf2be383549a35e433

174 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. It contains numerous links pointing to external domains, many of which are hosted on compromised CMS platforms or appear to be disposable. The document's structure, with minimal text and a focus on image-based content, suggests it's designed to trick users into clicking through to malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9646

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 http://elhammagazine.com/ckfinder/userfiles/files/lusomisijawup.pdf In PDF document text
- http://szkolka-wiercioch.pl/files/file/42754003684.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160cb8803d0b58---fewimapenenu.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f4831b444---93513652161.pdfIn PDF document text
- https://dmshospital.com/mm_engg/files/pefexofumalofogaxu.pdfIn PDF document text
- http://stilna-ya.com/_userfiles/file/98892886433.pdfIn PDF document text
- http://ahlhy.com/uploads/file/180327123633.pdfIn PDF document text
- http://sys-svinding.dk/userfiles/file/25659428182.pdfIn PDF document text
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/4f432fc12846003d7c15c58295d4f8c1/lotumolememagape.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=solid+converter+pdf+gratis+en+espa%C3%B1ol+%2B+crackPDF link annotation

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