MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. Heuristics indicate it functions as a link farm and a callback phishing lure, prompting users to call a phone number for fraudulent purposes. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious sites or engage them in a social engineering scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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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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://standdominica.org/files/files/nikofikunuvut.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/19a9525f213c9b771875777414b3c04c/pelusoti.pdf
- https://cvsc.co/userfiles/file/21966601406.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/jgv44mqjiqcn0k22q303a153e3/99865259409.pdf
- http://lysfyyy.com/upload/files/nigeselil.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/dbdac6232a4cad100ac98f614240246c/54211481958.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb38e5bede---88903205036.pdf
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b559cae2772---92850889777.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6adfa455b0---14582795201.pdf
- http://nexxosrealty.com/userfiles/files/pamezufefusijoxajubiko.pdf
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/8vmm9h9rac267i0hb3k1bp68if/96100216403.pdf
- https://surupaceanu.ro/ckfinder/userfiles/files/demowisivufewutig.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/s21jm6bkmrojqkr54sonv3b6l3/31716898371.pdf
- https://catbasailing.com/upload/fck/file/81296718601.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/geq3e7f6f4vvjv97jg9938sef0/40480755223.pdf
- https://aduanaldelvalle.com/userfiles/file/gotatupenakekajuzegukike.pdf
- https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160806496696f1---pabaxaf.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/442e35e8fa023376b4ec87594e93ee99/74786102544.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1247b071ee---zakarafidokemogog.pdf
- http://krakow4you.pl/krakow/files/76907227874.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/38dd055ea85c7a181c883d7fda4a5c25/80743155499.pdf
- http://rgn2u.com/userfiles/files/79167704534.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=rules+of+professional+conduct+2020+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_off0000f20b.bin1cd48599e9b5c2294d1fd04f4948eaa8e0a44815c956cc515d204f047de96e55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF20B | 20260 bytes |
font_01_sfnt_off00012614.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12614 | 16792 bytes |
font_02_sfnt_off00013e2b.bin2a72eff1057c4801ff312d79811db83f2ce6b13ca8234c57ccdf4f21825f9a01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E2B | 11000 bytes |
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