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 Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Several heuristics indicate the PDF functions as a link farm, directing users to compromised CMS upload storage and disposable hosting, likely to distribute malware or facilitate phishing. The embedded URLs, while some are marked benign, are part of a broader pattern of malicious redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://giftboxvietthuy.com/upload/ck/files/20929188856.pdf In PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fdb0f8db55---fadimopadopej.pdfIn PDF document text
- http://vinaktv.com/storage/ckfinder/files/19415350809.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/lalekavitodoko.pdfIn PDF document text
- https://bosgo.mn/uploads/files/winotepunivow.pdfIn PDF document text
- http://www.kigimex.com.vn/ckfinder/userfiles/files/bopokofawedekoteded.pdfIn PDF document text
- https://www.supremecaravans.com.au/application/third_party/ckfinder/userfiles/files/39632168770.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/04b68eff4bf1a2ca4893ab4e89100328/15628820756.pdfIn PDF document text
- http://www.likoda.com.tw/upload/ckimg/files/jebufuteki.pdfIn PDF document text
- http://abwcrainhwy.com/uploads/files/kupakewakosebu.pdfIn PDF document text
- http://chaodontuonglai.vn/uploads/ck_upload/files/logojow.pdfIn PDF document text
- http://foto-recepty.sk/images/fotky/81304807807.pdfIn PDF document text
- http://studiomanzetti.it/userfiles/files/50738473045.pdfIn PDF document text
- https://unifor975.ca/userfiles/file/10322070307.pdfIn PDF document text
- http://szamosiszerviz.hu/feltoltott/files/83724402055.pdfIn PDF document text
- http://etkindenetim.com/resimler/files/5829580489.pdfIn PDF document text
- http://coming-c.com/userfiles/file/83802507199.pdfIn PDF document text
- https://eurotig.ro/file/kalesifedotexijetipixor.pdfIn PDF document text
- https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/vimizunibojusabeg.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/o4qbttppcl3knus65s8qsbpp5n/guvanapalujo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=kissanime+latest+version+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_off0000af23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF23 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c735.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC735 | 15852 bytes |
SHA-256: 9f18a822d19d03fe01a679fdb77820030509eddd813e99ca7a25f9bafe0ec50e |
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font_02_sfnt_off0000efca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCA | 10564 bytes |
SHA-256: 60a759f64f2ca519e10b948c89154ca4d0d91a00e3dbc26d7a34ee1321c8c407 |
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