MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. The document body is heavily obfuscated and unreadable, but the presence of external URIs and the overall heuristic findings point to a malicious document designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://infrive.ru/uplcv?utm_term=school+leaving+certificate+application+pdf PDF link annotation
- http://nuestratierrapremios.com/campannas/file/seronolokije.pdfIn PDF document text
- http://acelybio.com/upload/files/11785613696.pdfIn PDF document text
- http://xn--tnqz8hz5cb8l.com/upload/files/8825766083.pdfIn PDF document text
- http://comtraining.cl/userfiles/files/66195655849.pdfIn PDF document text
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/9e0fff2ffa2096067369c7f44784f8f9/33059698900.pdfIn PDF document text
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/34if2c8q8cag169vda8oe47kka/mavakigig.pdfIn PDF document text
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/159296c4c5432171faf7ba8ffda0f59d/womixusowevaji.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16108a07483f73---60176179621.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2ccd1cf81---finojunaturakifamopifa.pdfIn PDF document text
- http://globalcenterhotels.com/bot/ckfinder/uf/files/pikatatogafav.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/vtfha0p92u55vkg6207gc1m0kp/bifokugunaborerixesumagid.pdfIn PDF document text
- https://akproauto.net/nbloom/fckuploads/file/72036367011.pdfIn PDF document text
- http://alexanderkanevskyartistbiography.com/clientMedia/file/miwude.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609ca94723bf0---fabizedenuxover.pdfIn PDF document text
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c98ce1b3e00---86063088301.pdfIn PDF document text
- http://elrey-uslugi.ru/media/file/fedijir.pdfIn PDF document text
- http://refpecsbelvaros.hu/kepek/files/ramitofalex.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/8371ca7541b342e8dd07450e65c72dc4/fojasa.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/koreml2fhpptfkenflmvb9je46/nogozixis.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cfac83d319c---67782596279.pdfIn PDF document text
- https://12waktu.com/contents/files/dozux.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/9272526b498c7898c19ff6224a5746de/pemapuwal.pdfIn PDF document text
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/ebf1860aec658a10d44c8b07b077d16a/92036749294.pdfIn PDF document text
- http://csc0898.com/userfiles/file/20210821084837_fcndwr.pdfIn PDF document text
- http://hyunbulsa.org/~ewedd2/userfiles/file/73129143430.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e198.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE198 | 10872 bytes |
SHA-256: 454a32754efed7da040c25d035c7530441ab0f5dab24be6f4ddbd199a0af5833 |
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font_01_sfnt_off0000fa7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA7D | 16904 bytes |
SHA-256: 905693c5e440705a08806245be43811f849e5152e563d6f20cf392df5ac598d2 |
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font_02_sfnt_off00012659.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12659 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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