MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute further malware. The 'SE_INVOICE_LURE' heuristic further supports the phishing pretext, aiming to trick users into interacting with the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c969e97be3792829adc67f631affb624/ronanotutitosopifeloju.pdf
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982ea861fdd---dilavexafewigomaj.pdf
- https://flyingfish-stay.com/userfiles/file/71108062544.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c32d00349d8---jukuzokofunuduxunikofixev.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7c29ab104e---9451046480.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609acdd03e405---80724140989.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16076c8bd62b01---rikosisi.pdf
- http://monkeytailranchdonation.org/clients/e/e8/e82116dd0b5861b0917add2a69208af2/File/deloxokuvixosuda.pdf
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160837c8457633---54578031955.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/r8t61qa1vl0h9mbiokcglbsia6/ruzoxanur.pdf
- https://vieclamxaydung24h.com/upload/files/96554529369.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/kngq5er7dc1c9gejgf6jt68md2/lawavenojewobaxafu.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/5870d3496b07a9bfc69f45a311379c00/ruzavapiwilojuvodowelawes.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d327c6eee2---zirejabuloti.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3532772324---23114791875.pdf
- https://brahmagnanam.org/fck_uploads/file/biraniruw.pdf
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076f66a5aa38---napewaloforuse.pdf
- https://lightspec.ca/wp-content/plugins/super-forms/uploads/php/files/5930d126ef0b26657351d4ff2539200b/tisuwula.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//99536188000.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/901e5c5a9d1d42621a49bf1bc7ffe999/91132420535.pdf
- https://serwisnawigacji.pl/userfiles/file/34600138978.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a99db04d54---kozupasivadefiwexudomud.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/d4f12dcf2355950a31ebc4edfb79dce9/zifadigolagese.pdf
- http://purifoy2020.com/clients/1/11/118d8b7ee1ea4bab8fb19da95c56260f/File/kutamaliledolavozav.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=the+fundamentals+of+business+to+business+sales+%26+marketing+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_off0000ea8f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA8F | 16792 bytes |
font_01_sfnt_off000102a6.binffb9d727427dc78d9dbad6276e0a9aabaed8815071a1faf817d67353fabee879 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102A6 | 10720 bytes |
font_02_sfnt_off00011b08.binc1eec3791f68acde9b18be52c2e62027c79097b5a808ffb7c5bb97e4c59a6953 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B08 | 16728 bytes |
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