MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external domains, many of which appear to be compromised CMS uploads or disposable hosting, suggesting a link farm or phishing lure. The PDF structure and embedded URLs point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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=english+speaking+topics+with+answers+pdf PDF link annotation
- http://edu-family72.ru/content/images/uploads/file/35202636177.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/kj60kufclvja44si0nop2dvcpo/nolakovebew.pdfIn PDF document text
- https://blnk.eu/userfiles/files/vepudowizirinawubax.pdfIn PDF document text
- http://iwilldoit.ru/uploads/files/files/sawirolutegimoxugugajumi.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609f961355db9---75596202922.pdfIn PDF document text
- http://vladjurnalist.ru/archive/file/43322790377.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/zisixawedalin.pdfIn PDF document text
- https://bamfieldrental.com/userfiles/file/44540079218.pdfIn PDF document text
- https://juvelyrikoscentras.lt/Files/file/31124551752.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/7967663afd95c7d38133f750108d2504/23560434968.pdfIn PDF document text
- http://jdhs77.com/clients/58520/File/famusetijulo.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160943b8582f77---roxataxobukunasi.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/bs0o7erbnrf93ct22c790msg84/69183365395.pdfIn PDF document text
- http://sochi-riba.ru/ckfinder/userfiles/files/1555722564.pdfIn PDF document text
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16079c27a7826d---fakijifomikumapires.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f69694f9d4---62684684441.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/6bdf7565035db678da0ca23710b07d2f/fekokoji.pdfIn PDF document text
- http://dahchen.tw/userfiles/file/6564157368.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/kufisiwuxizibusexi.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/dae2ffd1a61a08954c228decc2f31245/suviseratefafadefa.pdfIn PDF document text
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/96515590bf896fcdae619bceb0f3181a/98979514360.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b518d35369c---wusirujos.pdfIn PDF document text
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/32bk2iqlan3surkdbq8ud1ei4b/30497171241.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/m6pl7omqa32s5eu24jh4ecqavn/gekovufojijarujamogow.pdfIn PDF document text
- http://zrdb-drogbud.pl/Upload/file/bavifefefonajemonuwuleji.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_off0000e42d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE42D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC3F | 17048 bytes |
SHA-256: f5aa21e0a275f5ef6e5e9631b80b758317eac8fccc1e62a51baa4dac85d52ed3 |
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font_02_sfnt_off00012898.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12898 | 11060 bytes |
SHA-256: 569809ed8d5e36fb4345016de126a19fa8f6345bf66b1917cb644248163438e8 |
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