MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which are hosted on potentially compromised websites or disposable domains, suggesting a link farm or phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are consistent with a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9719
Heuristics 6
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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 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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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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 http://huh.hu/UserFiles/File/wodijuxal.pdf
- http://quesnelfoundation.ca/userfiles/file/53936096004.pdf
- http://ty-universe.com/image/files/20210909_191425.pdf
- https://toppelletmachine.com/d/files/57672924718.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137648778b11---limawesev.pdf
- https://xistenze.nagydavid.com/files/files/17703502617.pdf
- https://ivanamihic.com/files/papudixemano.pdf
- http://sgo-bage.com/public/files/files/90642336333.pdf
- http://stroi-sistema.ru/img/vopixaburuluzewazoxukov.pdf
- http://linhkienhunganh.vn/luutru/files/nadirufobategumabegarev.pdf
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/wadodizipexeker.pdf
- https://anpheatingandac.com/nbloom/fckuploads/file/votuzavelamiriren.pdf
- http://arniestribu.com/campannas/file/fexobijukuzimamukavakawu.pdf
- http://vonschickenconcord.com/uploads/files/55187294759.pdf
- https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/69994637158.pdf
- http://dayuntang.com/assets/uploads/ckedit/files/20210912103142.pdf
- http://bibliotekaludwin.pl/img/upload/files/43063656419.pdf
- http://royalwedding.jp/images/blog/file/10473386719.pdf
- https://careersourcechipola.com/files/public/91652976250.pdf
- https://thuaphatlaihanoi.net/uploads/files/nidadevorikuvubewiximema.pdf
- https://vleek.com/uploads/files/80736609731.pdf
- https://casasholidays.com/scgtest/team-explore/uploads/files/74423458291.pdf
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/5686093934.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/9406a0136c921207be4254e246c8f8b4/24731640365.pdf
- http://dierenwinkelindex.nl/images/uploads/tevolizidafukaduf.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133cff9cab30---89013940099.pdf
- https://www.notusweb.com.br/ckeditor/ckfinder/userfiles/files/21709824375.pdf
- http://thienminhgroup.com/uploads/userfiles/file/vanases.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=fast+%26+furious+8+torrent
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c19e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC19E | 16792 bytes |
font_01_sfnt_off0000d9ab.bin6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9AB | 1680 bytes |
font_02_sfnt_off0000e1a3.bin71544ed9b39c07641690d79f8d65afbb7876783a042b4eea130e659eea2af1cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1A3 | 20840 bytes |
font_03_sfnt_off00011611.binf51d5d1ed6f87b52d1b9f429dd51402bf3eddb0f0727a485d5a13d2cfa109c79 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11611 | 9476 bytes |
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