MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users. The PDF document body is heavily obfuscated and unreadable, indicating it's likely a container for malicious links rather than user-facing content.
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 https://atphp.ch/userfiles/file/jetezijadoxomozawuvid.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aad02247470---51974655882.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/4q0aa362kc41ojveiimt44l65p/67642023376.pdf
- http://clairerolo.com/userfiles/file/gusefiw.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/4fa117a17b18b6f3134607adcce67341/22060343728.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/fm6h48cuh2a4fgjqiu931i6o4r/26297608664.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/1jkpcs949u8gsa9g8uv53p7ei0/xexamurevawamixi.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1607890c71fc17---73567428115.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe06c713cd---jejijisulowod.pdf
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5f7a792c2---zedulurapup.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee50d6716b---xodubimowi.pdf
- http://xz-brand.com/ckfinder/userfiles/files/70407955817.pdf
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/61d21c1c860b7bef46e4c1c5037ad4a8/wefafas.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c475b19dff1---16145500627.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16093cecbf07b7---50743832163.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/5b136cf60e8b296b9c2b4708bd037dc2/fasutexiro.pdf
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/80b6snpm7ln0at43g59ip6lqna/66300033373.pdf
- https://sukhayurveda.in/userfiles/file/witozifofa.pdf
- https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/73cfd7928ec512c4185936114f804894/1396840300.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=minecraft+castle+building+tips
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ebe5.bin81e2fcd7afe5a1e0417cf931630e85627239c0dce319deb077359a745885022a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBE5 | 16864 bytes |
font_01_sfnt_off000117d1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117D1 | 16792 bytes |
font_02_sfnt_off00012fe8.bin24128a698305c0a1edd265ce9ae7e73a8ff4cf4efe320366b251d6416312e4e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FE8 | 10908 bytes |
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