MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, presenting numerous URLs that point to potentially compromised websites or disposable domains, suggesting a phishing or malware distribution scheme. The presence of external URI heuristics and link farm indicators reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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://oniceh.ru/uplcv?utm_term=mx+player+ad+free+mod
- http://techcessgroups.com/userfiles/file/jizebokoduxefuneme.pdf
- http://abwalabamaave.com/uploads/files/50436377831.pdf
- https://wittnebel.dk/file/gudiwaleke.pdf
- http://idrogastermoclima.it/Utentifile/FCKPage/file/72154135346.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/8327ae3227501976d9bf50024717b4f1/subomag.pdf
- https://www.hkfew.org.hk/ckfinder/userfiles/files/futefe.pdf
- http://logicamail.it/draft/media/fefiwupix.pdf
- https://ncvpte.in/userfiles/file/xirutipodikojuwax.pdf
- http://scantech3d.com/files/69027319071.pdf
- http://duz-drustvo.si/uporabnik/file/gaxamotufemuw.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16130b16876036---98323638936.pdf
- http://emilymillerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/27620097148.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161403817cae12---42935796901.pdf
- http://zensushialiso.com/uploads/files/xovejakozi.pdf
- https://www.temtechnologies.fr/ckfinder/userfiles/files/92759690865.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/161459c63c21dd---99070650365.pdf
- http://vasekurzy.cz/userfiles/file/99912351237.pdf
- http://rent2day.ca/ci2/userfiles/files/desadotitipafobip.pdf
- http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/83534020645.pdf
- http://nationshield.ae/userfiles/files/pexasuboloxidoporegubura.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/44bdbc8e445a9e932eb979c7fc974cd3/44821396161.pdf
- http://koslita.eu/ckfinder/userfiles/files/57578510177.pdf
- http://inbond-cn.com/userfiles/file/3440830782.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161402fd70ec71---funad.pdf
- https://amgaa.org/temp/files/biguxawu.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_off0000c3e1.bin9de486d81730d748d7b283f3379fb927ed7b3f769d8d00fe2fb1102b42ffbdfe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3E1 | 17528 bytes |
font_01_sfnt_off0000f203.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF203 | 16792 bytes |
font_02_sfnt_off00010a1a.bin6fdd13ee7cd98b42c01837768afdc98c3198773259ad55e08da296b57af96411 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A1A | 10408 bytes |
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