MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to compromised WordPress upload storage and disposable hosting sites. These links likely lead to further malicious content or phishing attempts, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607415f6cafde---67276083309.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/vrkmdjuhp6e61qoqjjgkapvha2/ponuruzujurozowidejo.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/cafd023b07145f4328c3520020c48323/lufaligozerinizodafej.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/50bcbd6fe100f59dbae85403f3a8bcb0/47522036420.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a631a7ec083---bekamogozikugopetiw.pdf
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/eacc3e3ea33ec4b354c033b9d1c89630/natekegupojolu.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7fee011c03---natetepuju.pdf
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/bcf5e687fe269f0fc10b5a47b98b3838/3885137519.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096dca76cabe---madeponuseburob.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/vgg5k15nadhgb3dgv9a4o0j3h0/modemidama.pdf
- http://jtour.vn/userfiles/file/39954147077.pdf
- http://sarljarry.fr/userfiles/file/xomepeduton.pdf
- http://aihyang.com/userfiles/file/nowotajajasonemojikivezim.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1866e28b8---vafux.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=the+seagull+chekhov+symbolism
- 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
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_006_off0001a35d.bin2b4bcee5298caa2d1c9533e6a141e8846f077cf5e6b50f851635f39e8de47f73 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1A35D | 18436 bytes |
font_00_sfnt_off0001669f.binac59d59b0c6e1e6ddf16f0f69e826fc73890fed5c2af3e7cbfdf8f1fef8e39ab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1669F | 5432 bytes |
font_01_sfnt_off00017909.bin6cae2dd1f0743053640de2d997fd91d7b51645d4720f9fcc1a5b045636dd31ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17909 | 13244 bytes |
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