MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links strongly indicates a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9941
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://com123.vn/uploads/file/27923609788.pdf
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/1bllbpu6l17sc7pnt36l6k63ir/kiteloxoxug.pdf
- https://codecs.roimages/file/17134859973.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/878158cfac4fa944abe7886410a0bcde/xegalovadavaref.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/1lh7n7b4g5rc60e5fd8s29q462/xogasawinuxifufi.pdf
- https://moto-trend.cz/public/files/fck/file/xexojuzetenejinopud.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607222eedcd01---70583326664.pdf
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/79n4i47b4pgmhe2fmq3j8crf58/gefaxizobizuvex.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607610b5c5e8b---suxaves.pdf
- https://aashianarealty.com/file/46685496217.pdf
- https://fullmagicweekend.com/ckfinder/userfiles/files/xojutuluxet.pdf
- http://alhouti.com/userfiles/file/9037494310.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607697bed5d2b---15908311688.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/2b2763e5accccf1ed7b2b718f2e56e6a/zivefepojugasurope.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160943fcd7522d---viroraro.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070cbf76eb7d---83861970339.pdf
- https://securityguardsupply.org/php/uploads/file/makejopefuzuxigunexedug.pdf
- https://triosms.com/userfiles/file/fifodaz.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d04d1782d19---25345798549.pdf
- http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81344386822.pdf
- http://clearspace-design.com/CKEdit/upload/files/muriwadewinun.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/d8def95f33eb5aa5779e128462fb20af/vikunuritajixev.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=homemade+sweet+and+sour+meatballs
- 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_off0000f090.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF090 | 16792 bytes |
font_01_sfnt_off000108a2.bin5eaedecc2a43a3d244ebbcb2432bffc116b748a8b98599965daea6634d768bfa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108A2 | 18280 bytes |
font_02_sfnt_off0001388a.bin066a889abd794e74dcefe52ffd98e12eed56254f9d66ac76ef8e66ff19093ef7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1388A | 10636 bytes |
font_03_sfnt_off000150dc.bin7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150DC | 16312 bytes |
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