MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The file contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure indicate an attempt to exploit users through a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://chhsmahs.com/clients/8/83/83f479e57a8bbaec88b4a04d821ef24e/File/64438541273.pdf In PDF document text
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/1ed951650b867655b53538f3ac7b924a/vadawenotusad.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f56f31ee5e---rujujewewagux.pdfIn PDF document text
- http://tungalag.mn/userfiles/files/98348050805.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b59d2218cd2---faxaso.pdfIn PDF document text
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/83a5be7241f48b33367d429166c33fed/72952182788.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b99f02184---79490237392.pdfIn PDF document text
- https://marigabung.com/contents//files/lamib.pdfIn PDF document text
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/0bfc763796fffd50b5c08a588d5fbaf0/34718313654.pdfIn PDF document text
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b2c7c9009---47472749894.pdfIn PDF document text
- http://naturenhuman.com/app/webroot/userfiles/file/5956490838.pdfIn PDF document text
- https://mackbeks.com/files/file/24038056952.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/f420dd2ddad667aca97d2edf0f87c19f/34332114576.pdfIn PDF document text
- http://ageofwonders.buka.ru/sadm_files/99975953817.pdfIn PDF document text
- http://chinhlytailieuluutru.com/media/ftp/file/dafijumumulajakexebu.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096112d69dbc---silamaze.pdfIn PDF document text
- https://coherence.cz/userfiles/file/28153205415.pdfIn PDF document text
- https://schilderlesvakantie.nl/ckfinder/userfiles/files/53344802575.pdfIn PDF document text
- https://takipbizde.com/calisma2/files/uploads/63592545936.pdfIn PDF document text
- https://repare-ton-smartphone.com/userfiles/file/88214066405.pdfIn PDF document text
- http://libertyquad72.fr/userfiles/file/56190506007.pdfIn PDF document text
- https://shiokerbau1.com/contents//files/51196464954.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/95b19df1e7f22654e32e7b31cb41af57/fapexur.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=manufacturing+engineering+handbook+hwaiyu+geng+pdfPDF 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_off0000c976.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC976 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e188.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE188 | 17148 bytes |
SHA-256: 12005ecde2dff5d0cfdd3456f4cf4a1f070b2daacd9c115aa35cb804033daebd |
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font_02_sfnt_off00010d89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D89 | 11208 bytes |
SHA-256: 0810c6c817bfeea6447c92d68c395565a0ea0cc4d479ad910bdd834608990975 |
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