MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The presence of these links suggests an attempt to lure users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://rszm88.com/upfolder/e/files/20210902024813.pdf In PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/cfca77555919f604e78d0879c2404bd3/10004875243.pdfIn PDF document text
- https://alusol-kw.com/ckfinder/userfiles/files/47441578285.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613acd4704f53---xijogitigufajawuku.pdfIn PDF document text
- http://atek-ent.com/upload/file/13797712405.pdfIn PDF document text
- http://criollo-cocoa.com/userfiles/file/bofaweranutanowizozupikab.pdfIn PDF document text
- https://aslplastic.com/ckfinder/userfiles/files/92274332045.pdfIn PDF document text
- https://izr.fr/files/xepazatimamafid.pdfIn PDF document text
- https://vpmemorial.net/images/file/12528228907.pdfIn PDF document text
- http://kaushalacademy.org/ckfinder/userfiles/files/30076107060.pdfIn PDF document text
- http://otevrel.eu/ckfinder/userfiles/files/68742582697.pdfIn PDF document text
- https://dm288.com/slicice/file/kovogasupimepivixugiro.pdfIn PDF document text
- http://zhongyuemedia.com/filespath/files/20210910190619.pdfIn PDF document text
- https://btsis.com/upload/ckfinder/files/92974692917.pdfIn PDF document text
- http://enewind.com/pliki/file/musanaso.pdfIn PDF document text
- http://domuran.pl/files/file/loribonerisowawarujeduj.pdfIn PDF document text
- http://prakseologia.eu/userfiles/file/vimunex.pdfIn PDF document text
- https://siemreaptraveltours.com/userfiles/file/41195991790.pdfIn PDF document text
- http://clevio.biz/fckUpload/file/61018849348.pdfIn PDF document text
- http://adamex.ukrkarta.ua/fckeditor/userfiles/file/fabodaxora.pdfIn PDF document text
- http://agilesolutions.in/uploads/disemu.pdfIn PDF document text
- https://walkandsmile.com/userfiles/file/38272104597.pdfIn PDF document text
- https://mudraconsultancy.com/uploads/files/82959958053.pdfIn PDF document text
- http://unesco-mediain.cz/fckfiles/file/60955366069.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613167c5bf598---59031058349.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=vidmate+old+version+2020PDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- 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_off0000b721.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB721 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cf38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF38 | 10684 bytes |
SHA-256: dff1dbd33cb8d9be205df0757dbd4b9bd64345708bf29f7e80463a68ed2e56d4 |
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font_02_sfnt_off0000e7bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7BB | 15232 bytes |
SHA-256: b37885fc25176e860ed7e81b42cda2c477aa8dbd7ce9512595296acd5a490f6e |
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