MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. While no scripts were explicitly extracted, the PDF structure and link farm heuristic point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://yuvasarkar.org/userfiles/file/mipumojonewas.pdf In PDF document text
- https://himarco.ir/basefile/himarcoir/files/raxibukiw.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161314a0dba9c2---fedofemexupoku.pdfIn PDF document text
- http://leprofit.ee/cmsfile/contentfiles/28593035086.pdfIn PDF document text
- http://benetworkingpro.com/ckfinder/userfiles/files/71384686326.pdfIn PDF document text
- http://4chan.ro/UserFiles/file/4851590201.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-9-17/20210917140153872275.pdfIn PDF document text
- http://ettorebelfioreliutaio.it/userfiles/files/nilotedive.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613423b36fadb---zejurazepalunuz.pdfIn PDF document text
- http://aceonlinementors.com/userfiles/file/sinulutofowibemomakusom.pdfIn PDF document text
- http://ambvetfanini.eu/userfiles/files/mufigunepeja.pdfIn PDF document text
- http://skazka76.ru/pic/userfile/51805304197.pdfIn PDF document text
- https://longislandinvestmentadvisors.com/nini/userfiles/file/15532036648.pdfIn PDF document text
- http://wpscrm.in/uploaded_files/userfiles/files/gezewefoxadadadatavagari.pdfIn PDF document text
- http://ymjgolf.com/file_media/file_image/file/28315502524.pdfIn PDF document text
- https://www.delaneyllc.com/ckfinder/userfiles/files/wibizovitapazuwelikakevi.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/8611a747a3f33389f8abeba6895207a9/lujogixexowipidale.pdfIn PDF document text
- http://smsgurugram.com/miet/assets/files/lukawuz.pdfIn PDF document text
- http://zdrowejaja.com/Upload/file/vawapoxolutagodeze.pdfIn PDF document text
- http://liavanhaeringen.nl/userfiles/files/titomekemubotateroge.pdfIn PDF document text
- https://conviviodihera.it/dati/upload/file/29193508917.pdfIn PDF document text
- http://goref.ru/files/file/todofoneduvizemenabine.pdfIn PDF document text
- https://cahayamimpi1.com/contents/files/digodiges.pdfIn PDF document text
- https://tybistanbul.org/resimler/files/64814541394.pdfIn PDF document text
- https://majubesar.net/contents/files/77077991483.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=how+to+reboot+mi+note+4+without+power+buttonPDF 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_off00010310.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10310 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011b27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B27 | 10536 bytes |
SHA-256: 3b8173ce207eab6cc3ad391a599509b778eb9029d1d6c9eac002b266892b5911 |
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font_02_sfnt_off000132bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132BC | 18360 bytes |
SHA-256: 9950b367abe35d41a15d08e21b3a5c650d9ef98ab8611d571d59cf98dcc655c6 |
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