MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. It also features numerous links to external URLs, many hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution campaign. The ClamAV detection further confirms its malicious nature, likely as a phishing trojan.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3396
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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Embedded URL info EMBEDDED_URLOne 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://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/o8ctvqflnn58sgrfldnbli469v/6326076329.pdf In PDF document text
- https://patoman.ro/ckfinder/userfiles/files/viwutotisenitawoxijezewis.pdfIn PDF document text
- https://aykutemlak.com/upload/ckfinder/files/21059601842.pdfIn PDF document text
- http://huyminhplastic.com/upload/files/12377271048.pdfIn PDF document text
- http://palmdale.thepokeluau.com/uploads/files/wezojidenivegorabiwe.pdfIn PDF document text
- http://nexxstep.nl/userfiles/file/61752608137.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1615d20797d7bc---felosudabudetevoro.pdfIn PDF document text
- http://gwtcs.org/Content/uploads/files/zavefodup.pdfIn PDF document text
- http://trevelsi.ru/ckfinder/userfiles/files/xusonupifiterer.pdfIn PDF document text
- https://tourgardan.com/basefile/tourgardancom/files/pepowusuzajoruma.pdfIn PDF document text
- http://dep14kirov.ru/userfiles/file/wakinerubimuzof.pdfIn PDF document text
- http://titibbs.xyz/js/ckfinder/userfiles/files/kemulizosoduzisolokixisof.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161312d8978ce0---peninipoma.pdfIn PDF document text
- https://dalycity.com/wysiwygfiles/file/89563938015.pdfIn PDF document text
- https://icon-studios.com/userfiles/file/33591679201.pdfIn PDF document text
- http://ambulatorioveterinariovianello.eu/userfiles/files/tejojelip.pdfIn PDF document text
- http://ranaghatpchsschool.org/userfiles/file/90897171651.pdfIn PDF document text
- http://bonsite.nl/phpcmsys/file/sezifasukufux.pdfIn PDF document text
- http://drzwiukryte.pl/userfiles/file/22255785499.pdfIn PDF document text
- https://xn--fct8ml6mwue.tw/uploads/files/tanepitebuligupox.pdfIn PDF document text
- http://angelascanu.it/uploads/file/68813913717.pdfIn PDF document text
- http://smartickgroup.com/userfiles/59696902227.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=salary+proof+letter+samplePDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e517.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE517 | 19052 bytes |
SHA-256: e5dca77cad504623db48c99201c0d8ce921f6d49529e9886cd718d7b7cbd1475 |
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font_01_sfnt_off00011733.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11733 | 10512 bytes |
SHA-256: 70c0c1fa83de09e4273af87f1c5af53c62f405c4189b543e354a824ae4a9ed40 |
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font_02_sfnt_off00012f34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F34 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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