MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan. Heuristics indicate it functions as a link farm, directing users to multiple unknown or potentially compromised domains. The presence of numerous embedded URLs, many pointing to disposable hosting or compromised CMS uploads, strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://jjkxmy.com/upload/files/202109151426417559.pdf In PDF document text
- http://kbinteriery.cz/userfiles/file/51106673841.pdfIn PDF document text
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16134c37e34336---mofago.pdfIn PDF document text
- https://aqualibramontois.be/fckdownload/file/retirokonibemojuwun.pdfIn PDF document text
- http://1mosref.ru/ckfinder/userfiles/files/dejoxanotoka.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c10a67035b---4138138516.pdfIn PDF document text
- https://kiofruits.com/admin/uploads/files/lilixakakas.pdfIn PDF document text
- http://weighlessthisyear.com/ckfinder/userfiles/files/saxubaduvig.pdfIn PDF document text
- https://tylbm.com/Upload/ckeditor/files/60306694464.pdfIn PDF document text
- https://hawkseyetravels.com/assets/ckfinder/userfiles/files/rukorunuxuzipopas.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/madezimunavewapegubol.pdfIn PDF document text
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff8e9a4da1---81415900157.pdfIn PDF document text
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/keropusefodebu.pdfIn PDF document text
- http://zkmeiqi.com/admin/ckfinder/upfile/files/gimedogiretanazavalob.pdfIn PDF document text
- http://poptheme.cn/uploadfile/files/20210901_112503.pdfIn PDF document text
- http://www.alcera.ca/userfiles/file/remek.pdfIn PDF document text
- http://vasekurzy.cz/userfiles/file/dezusevamuraduzageseb.pdfIn PDF document text
- http://taiwanglassgroup.cn/userfiles/file/48760743485.pdfIn PDF document text
- http://boldogelet.hu/media/49171333096.pdfIn PDF document text
- http://ahnil.com/userData/board/file/81342366816.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=mi+android+no+recibe+mensajes+de+textoPDF 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_off0000d902.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD902 | 10848 bytes |
SHA-256: a5123382cc7f08b90894bf1182f07314980acf0a02ad7c6523a1edd39e7898af |
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font_01_sfnt_off0000f200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF200 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A12 | 18868 bytes |
SHA-256: e7ed0db594272c48eb102f219b06bfc29b1fd015e027256258d11e8f77ed1e8e |
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