MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The heuristics reveal it functions as a link farm, with many URLs pointing to compromised CMS upload storage, suggesting it's designed to redirect users to malicious sites. The 'SE_INVOICE_LURE' heuristic further supports the phishing pretext, aiming to trick users into clicking the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d43d3e660---78487099866.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/8a3a0e3602dec085861aff7fbaed3b10/66004755794.pdf
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/43dd997f6c838a757fe82470d3183ca1/55581100816.pdf
- https://speakingparrot.com/upload/ckfinder/files/71341751039.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/qjtttpgh2busq0s6a2movsbrr1/keruxavatotokibitatewegon.pdf
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/7a77cfd1ce844a93db41ff642e7bb317/89181478985.pdf
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/6d64fbc95187bddefdef49a21a41f6f5/fomusazutinixirovob.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16070e8948c104---fepugelagedinibuxixege.pdf
- http://groupkaishan.com/d/files/60814498648.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ac8ce4debee---xexupugeriso.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1f588af90---wojubutufaxokal.pdf
- http://megalabsrl.it/userfiles/files/38453004597.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/imv4n1pk40h5d92f7u4g1uve53/85814256304.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607f00b4b0b7b---33880040173.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee421e9ed9---62440036692.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b90f106171---kusukimovufi.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9b378b6f8---20448051004.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/0626fe72e5e22acdacb0c9a51e58505c/42688717241.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=fake+cash+app+send+screen
- 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_off0000f14e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14E | 16792 bytes |
font_01_sfnt_off00010965.bin7da11ca909891d2d17c68c61d94cef7862757556e15634ea7a3edd6d76db5f7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10965 | 10324 bytes |
font_02_sfnt_off00012091.bin561d626486844dce0ce66f57061d2ef16f37cc46414925b32aa3ea30e600118c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12091 | 18556 bytes |
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