MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to disposable domains, indicating a link farm designed to distribute malicious content or phish users. The presence of external URIs and the link farm heuristic strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9715
Heuristics 5
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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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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 http://taiwangallant.com/uploads/files/202109081253406651.pdf In PDF document text
- http://librojuridico.com/aym_images/files/puvumad.pdfIn PDF document text
- http://avanti-kuhni.ru/upload/files/86387887959.pdfIn PDF document text
- https://savitravel.ro/ckfinder/userfiles/files/54368898622.pdfIn PDF document text
- https://mondoaudio.it/img/uploaded/file/42294189868.pdfIn PDF document text
- http://centromp.it/userfiles/files/51165787688.pdfIn PDF document text
- http://0225674989.kad.tw/kads/ckfinder/userfiles/files/vufomixafisabumame.pdfIn PDF document text
- https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/jusuxedamedalif.pdfIn PDF document text
- http://siltherm.com/ckfinder/userfiles/files/30802875659.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142456b7294e---luxoterorofegewatesufef.pdfIn PDF document text
- http://sh-ruiyangcpa.com/userfiles/file/2021-9///2021941157135133.pdfIn PDF document text
- http://dogomanhnghia.com/uploads/files/lezomepekuwogurekub.pdfIn PDF document text
- http://evola.it/userfiles/files/vetopawofasok.pdfIn PDF document text
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/161336dd566da5---9036532463.pdfIn PDF document text
- https://www.informacion-indoorclub.com/boletines/img/file/33927584007.pdfIn PDF document text
- https://moveo-sport.pl/userfiles/file/paxox.pdfIn PDF document text
- https://niagarablock.com/application/webroot/userfiles/file/pilox.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/32090851200.pdfIn PDF document text
- http://dwornawodzie.pl/userfiles/file/39715759352.pdfIn PDF document text
- https://trade.inter-ural.ru/ckfinder/userfiles/files/xagukokuxupupox.pdfIn PDF document text
- https://sunsetlearningcenter.com/userfiles/file/77364246355.pdfIn PDF document text
- http://studiomanzetti.it/userfiles/files/dixenukupizotulegezeti.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/96441416518.pdfIn PDF document text
- https://thenovgorodspaceship.andreirozen.com/images/files/negagomuris.pdfIn PDF document text
- http://sakuragiramenandsushi.com/uploads/files/17526496189.pdfIn PDF document text
- http://bibrka-school.org.ua/ckfinder/userfiles/files/40421367129.pdfIn PDF document text
- http://autobedrijvenindex.nl/images/uploads/6181112127.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+install+apps+on+android+from+computerPDF link annotation
- 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/riIn 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_off0000b543.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB543 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD55 | 17592 bytes |
SHA-256: c59c797c495ff0d014d660f68f06c0b609919d854e9f2d913dac4ede94085314 |
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font_02_sfnt_off0000fa71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA71 | 10956 bytes |
SHA-256: eda4881f27ccc5f5bfe634882cd39661433abb7ac3234dddf3bcdf2086c56f0c |
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