MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the PDF structure itself, along with the ML_NYX_PDF_MALICIOUS heuristic, strongly suggest this PDF is part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://pistant.ru/uplcv?utm_term=omg+burse+app+download+apk PDF link annotation
- http://hutnia.pl/userfiles/file/21064419125.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/88l78h6gf8jclgmo4d0adrhfi7/40612508926.pdfIn PDF document text
- https://albizy.com/ckfinder/userfiles/files/fozuj.pdfIn PDF document text
- https://beeshark.ro/app/webroot/files/userfiles/files/dazogimekagu.pdfIn PDF document text
- http://bobas24.pl/Upload/file/28110739585.pdfIn PDF document text
- http://vandientuchinhhang.com/upload/files/bezawapowadifan.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614556735fcdd---gakokitigefuliw.pdfIn PDF document text
- http://wsospice.org/uploads/userfiles/file/file/rebufubuxiju.pdfIn PDF document text
- http://arunimaflavours.com/userfiles/file/fafaloxenizapitipozeka.pdfIn PDF document text
- http://saeronbio.com/userData/board/file/7565196391.pdfIn PDF document text
- https://harshahometutors.com/uniformkontakt/userfiles/image/files/11254708835.pdfIn PDF document text
- http://sowa-architekci.pl/userfiles/files/jozupokabu.pdfIn PDF document text
- http://nj-rshb.com/v15/Upload/file/202196955362478.pdfIn PDF document text
- http://scamps.biz/userfiles/file/85780652665.pdfIn PDF document text
- https://questyme.com/userfiles/file/tezanimugef.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/0eaadd8f5969ee59c1b85d61f2144e31/faditijutuwi.pdfIn PDF document text
- https://grandegroup.net/files/xafodilelodenubebiwo.pdfIn PDF document text
- http://kondicionery-pushkino.ru/upload_picture/file/74778797185.pdfIn PDF document text
- https://foodthings.us/userfiles/file/pipogejigavodegokoxipad.pdfIn PDF document text
- https://journalofcritique.com/ckdosyalari/upload/files/lisuzijisekijuwerarovadik.pdfIn PDF document text
- http://esistore.lu/userfiles/file/xijusujujedopuxe.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/jtdb2n0pgl09qkme1ogg4pqd5j/3465145439.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/64254234496.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_off0000b366.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB366 | 10988 bytes |
SHA-256: 73d3976a494c705c5c1b1748c11f050a6744c3bf886343808fe154fee07bc645 |
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font_01_sfnt_off0000cc9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC9A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e4ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4AC | 18352 bytes |
SHA-256: bcd815c8a5164a71c050fbaa7d0ae70025992d83f84ef5bdba005d0f53d8155a |
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