MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and the ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many distinct hosts and UTM parameters, suggesting a phishing or malware distribution campaign. The document body was unreadable, but the presence of numerous links to potentially compromised CMS upload directories reinforces the malicious intent.
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 http://africalegal.nl/userfiles/file/xujigo.pdf In PDF document text
- https://jatransfer.com/userfiles/file/degenevinowosowiv.pdfIn PDF document text
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161386da3b7e8c---ridoruvejagipadasok.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/918ebf630b493bd0b8c5dd67a180bc1a/70916983356.pdfIn PDF document text
- http://av-jet.ru/userfiles/file/62048067201.pdfIn PDF document text
- http://shtaket46.ru/page_edit/_samples/userfiles/files/dunazegugeredibepide.pdfIn PDF document text
- http://hilimall.ae/uploads/files/6279882600.pdfIn PDF document text
- http://www.brickchamber.com/ckfinder/userfiles/files/91924840728.pdfIn PDF document text
- http://mingmitrcoffee.com/user_img/files/54957990601.pdfIn PDF document text
- http://askaudit.ru/price/46938951857.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/814c38f28b91c8fe9e1f5f2b7d4f8479/2929353043.pdfIn PDF document text
- https://hr-serdahel.hu/images/file/99142328663.pdfIn PDF document text
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/25acdfa48bb012a9d742357e4dcc22b4/83844952300.pdfIn PDF document text
- http://sinosteelcode.com/filespath/files/20210913231858.pdfIn PDF document text
- http://grimastone.ru/files/77177338092.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/92d5a6a8ba1b6e33c1f3606b8ba647db/zowexopofoba.pdfIn PDF document text
- https://magnanerie-cazilhac.com/userfiles/file/neloloraralowenupatovo.pdfIn PDF document text
- http://dfwarbitrator.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/5750035455.pdfIn PDF document text
- http://halongbaycruises.org/upload/files/89467331691.pdfIn PDF document text
- http://bburago.info/admin/fckeditor/userfiles/file/gutumovofeferizefafap.pdfIn PDF document text
- http://idevicesplus.nl/app/webroot/files/userfiles/files/jolinazufaf.pdfIn PDF document text
- http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kekalamewerepozuzu.pdfIn PDF document text
- http://2sisaccount.com/userfiles/files/wizux.pdfIn PDF document text
- http://asztalosweb.hu/userfiles/file/xemolefuxiba.pdfIn PDF document text
- https://cantarefides.ro/admin/userfiles/file/68474300545.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=phonograph+music+player+pro+apkPDF 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/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_off0000dd5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD5B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f572.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF572 | 11028 bytes |
SHA-256: f142c94503729227028edfe39a92fc5b3a3962e3ac12e16e971537f94e36f1e0 |
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font_02_sfnt_off00010eef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EEF | 17312 bytes |
SHA-256: 9c868e4f421aec89ebd787683e4f67356290473cf81683c6c7a3816218d1f00e |
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