MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to distribute malicious content. ClamAV detection and ML classification further support its malicious nature. The primary attack pattern observed is the use of a link farm to lure users to potentially harmful sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.5522
Heuristics 5
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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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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/202107200112098862.pdf In PDF document text
- http://divorcefinance.nl/uploads//file/tomuzosowozilakesumebopo.pdfIn PDF document text
- http://tatvideo.ru/ckfinder/userfiles/files/kuzifasubomak.pdfIn PDF document text
- http://jucal.es/images/file/tajezaguzevigo.pdfIn PDF document text
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/p8rc2ofqkksegf1vbov8u6dklc/puzomuvifiger.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee6180077c9---gurekunalonarowajitipovu.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abf2602199b---61435270801.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/eg0fipaka3rijabif6up5d7fav/79064129152.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/111fbd6037469691c27b428a7aa2914b/16546037129.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079a64b3996f---23200214237.pdfIn PDF document text
- http://limeitec.com/upfiles/editor/files/lilalivozonug.pdfIn PDF document text
- http://fashionflutters.com/ckfinder/userfiles/files/20925581912.pdfIn PDF document text
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/b66c1987b7dcbcb10952f4ed99ca195e/vexapemipatunuwimoga.pdfIn PDF document text
- http://saluteebenesseresas.it/userfiles/files/25902471101.pdfIn PDF document text
- https://efficientinfocomm.com/ckfinder/userfiles/files/rafajorerojoferofukaze.pdfIn PDF document text
- http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/nikak.pdfIn PDF document text
- http://mygiftltd.com/userfiles/file/72098074422.pdfIn PDF document text
- https://namdolove.com/FileData/ckfinder/files/20210723_B3AB64F4E5EEA599.pdfIn PDF document text
- https://ichibaninfotech.com/ckfinder/userfiles/files/54981014561.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/21c622b020bb37e9ea70adb95e47c11d/92202654835.pdfIn PDF document text
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/riwepevubetosaluji.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160984f38822d8---dumomukagolufi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=jacket+crown+pdfPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8A8 | 10476 bytes |
SHA-256: b70547fe2f8590883a86fa27677d7b4fa725798ff63ec2ea4097163b96cd49aa |
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font_01_sfnt_off000100b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100B8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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