MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_URI_IP_LITERAL' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, pointing towards the exploitation of users through deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://barudan.hk/UploadFile/file/20210519084356296.pdf In PDF document text
- https://profipreklady.cz/www/ckfinder/userfiles/files/38997135847.pdfIn PDF document text
- http://astro2sphere.com/admin/images/file/36407656707.pdfIn PDF document text
- http://jrmhandling.nl/upload/file/48813136850.pdfIn PDF document text
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/4af048be9b787daac6c2cf4560a0cf21/44728201268.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161375fb8270f7---58679160243.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bea3b543c5---dimidiw.pdfIn PDF document text
- http://amctop.com/board_data/editor_img/file/202105160052.pdfIn PDF document text
- https://briljant-maleri.se/UserFiles/files/rebedokemoravurin.pdfIn PDF document text
- http://wecans.net/_UploadFile/Images/file/kekide.pdfIn PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/d6acf257aedd3776ea009dc0d6418b1f/46369465488.pdfIn PDF document text
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6edad75d7---70837431053.pdfPDF link annotation
- https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3465a73a8---motesigapowawowuligov.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a169fbe8ff2---81888788935.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b060af1adfe---vajinak.pdfIn PDF document text
- http://xoblates.com/clients/e/e0/e08cfb93fb97b00c28394d0532709dc9/File/53097192326.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ecab0ed593f---36361453576.pdfIn PDF document text
- http://anpharma.net/upload/files/62603685120.pdfIn PDF document text
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2cab992ad058c716180af29d2590115c/moxidem.pdfIn PDF document text
- http://chekeeh.ir/basefile/chekeehir/files/87955441391.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c28a3749d8---xawix.pdfIn PDF document text
- http://consol.hu/images/uploadedimages/file/58765826173.pdfIn PDF document text
- https://tese.in/ckfinder/userfiles/files/14924541625.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/bfaf27451725926cd1923a4183c6dec8/57277526022.pdfIn PDF document text
- https://leosservices.com/userfiles/file/pikuzakekanukefojutisapaj.pdfIn PDF document text
- https://jmcoverseaspvtltd.com/uploads/files/34596932409.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=agenda+setting+in+public+policy+pdfPDF 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_off0000e0a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0A0 | 17944 bytes |
SHA-256: 11649d281e0bd086633e2f364132ac8d2c0f26d16d970cc3afbb6eeff228c140 |
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font_01_sfnt_off00010eb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EB2 | 11028 bytes |
SHA-256: ecaf5bdb24305c51f7e512c309fa973968922c001337d7ff987b4ab560bf8d05 |
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font_02_sfnt_off0001281c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1281C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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