MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. It contains a link farm directing to numerous URLs, many hosted on compromised CMS uploads and disposable domains, suggesting a phishing or malware distribution attempt. No scripts were extracted, and the document body was unreadable, but the presence of many external links points to a malicious intent to redirect the user.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/6qbkd9juk20f3qkud6dpl01vst/gasukisuwofin.pdf In PDF document text
- https://mystruggle.uk/indigo/ckfinder/userfiles/files/4682744244.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161136da2a4d31---48284712050.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/8lc2abufjg2ttk8kd9d236unm6/ronuli.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d7c839abbb---4932245829.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad39e2f2313---17334219137.pdfIn PDF document text
- http://elazentrale.de/images/uploaded/file/6623613566.pdfIn PDF document text
- https://haruhonpo.com/upload/haruhonpo/files/fefesu.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a78f1399b41---25212846063.pdfIn PDF document text
- https://cmetrix.net/ckfinder/userfiles/files/79924977890.pdfIn PDF document text
- http://ukicda.com/admin/fckeditor_upfiles/file/2021061907382780554.pdfIn PDF document text
- https://dichvuketoanvn.org/uploads/files/91117626299.pdfIn PDF document text
- http://omni-links.com/images/blog//file/bozidadurexilugukusi.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ba4cc8f0cc0---gimiboxamukomedizexas.pdfIn PDF document text
- http://toshiba-center.ru/uploads/files/ditegujilalikikomivu.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5d05c6f30---zixamujisuzuwi.pdfIn PDF document text
- http://nhungbaithuocnam.com/img-tvdl/files/wewor.pdfIn PDF document text
- http://registermycompany.in/admin/userfiles/file/bibutetatozilove.pdfIn PDF document text
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/08h3t19ie9jmjqvpbiks4ibnif/37846560222.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-5-15/20210515033749293019.pdfIn PDF document text
- https://ratco-hardware.com/Ups/files/69742488803.pdfIn PDF document text
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/kp8dpvfgjrhhh0qi9im1vg318i/ranesukubuwas.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=computer+programming+and+utilization+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_off0000d504.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD504 | 10864 bytes |
SHA-256: c7c6a2b986f89d9ac7a67703b22180383c2365a471d05728bc3f35938d5bba6f |
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font_01_sfnt_off0000ede8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDE8 | 17152 bytes |
SHA-256: 1428f480723ed6ff6e5b39f16642fec44288fe73e17fdf301befd5d7d1f8d3bc |
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font_02_sfnt_off00011a75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A75 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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