MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. The 'SE_CALLBACK_LURE' heuristic indicates the document likely attempts to trick users into calling a phone number, consistent with callback phishing or tech-support scams. While no scripts were extracted, the presence of numerous links to compromised CMS upload storage and disposable hosting suggests a phishing or malware distribution infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c26bfb9dbf---24437728506.pdf
- http://vdtonline.vn/static/uploads/editor/files/wemabeloteb.pdf
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/6bd951ce134a83c54b27e3c68606c92c/xomadorofewuzadojamefu.pdf
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/cab73c351e82e05edd388164587565c5/topoxivisesuxakapotef.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/j1urfp31bp8fe8od3qh1ggpok3/9158332408.pdf
- https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/181692724e7d40e82f29cf2d40f39c7d/badalasigoganumul.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c578e82b091---20061215097.pdf
- https://himalayanwanderer.com/himalayan/userfiles/files/60673683293.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c69bc869120---wigalawi.pdf
- http://wanyuantemple.tw/userfiles/file/nodijuvox.pdf
- http://megat.pl/uploaded/fck_files/file/51526607202.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/itogsfsrtm13kh93vfas6vk1c1/77475381616.pdf
- http://leaguengn.com/userfiles/file///pewofixiziwaxugot.pdf
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/77f65b71b385ac16c62c9ab8bce83e6f/59654210718.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160897d36737cf---59094017704.pdf
- http://aelma.com/sites/default/userfiles/file/45508141867.pdf
- https://aduanaldelvalle.com/userfiles/file/12474488924.pdf
- http://sushiloverca.com/uploads/files/wiwabetoxemuko.pdf
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca3bbd92b3---lasapekogonabejum.pdf
- http://hzdsbg.com/uploadfile/1624594424.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d277e75b0fa---tofodisipaf.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/546fc787f8c173df95033bdc4264fee6/fexavuninilisemadabekexi.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7e30bc2ea.pdf
- http://aep-tc.com/cache/fck_files/file/73242357587.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=life+drawing+tutorial
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/86e660d7a75e6e81ffc36aa40d8bbb8d/pexap.pdf
- 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_off0000fadd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFADD | 16792 bytes |
font_01_sfnt_off000112ef.binc89b5351c22b9d84645dc26debc7a2c584da0e75613fa67653599b793082426a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112EF | 17156 bytes |
font_02_sfnt_off00013f7b.bin6af3a52aa3240ee8fcd43d0e81271672e842ff92335bb00fd70449203a7c3dfc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F7B | 10504 bytes |
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