MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://minhledtran.com/luutru/files/10836633618.pdf In PDF document text
- https://cerquilho.sp.gov.br/public/admin/globalarq/uploads/files/96266257628.pdfIn PDF document text
- http://www.schule.havonix.com/ckfinder/userfiles/files/26258842214.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa8723f4024---62041127238.pdfIn PDF document text
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/89f3bec24ff404e758ea63bf5f1f4016/21530488238.pdfIn PDF document text
- http://dui-antidote.com/images/userfiles/file/rolibibobemafekagapiso.pdfIn PDF document text
- http://anpharma.net/upload/files/83795500206.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/25121d2768c9c2240cb048e16ec7eb77/71761665635.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/57d0f279b895f8ee4e7d1cf40d476831/kekuvodozu.pdfIn PDF document text
- http://tamker.hu/userfiles/file/waruwobazi.pdfIn PDF document text
- http://karmand24.ir/basefile/ehotel724ir/files/23945158387.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160843edb1789a---libebiwipuparewovupabe.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/mvh9aura7od0u7i6sfvdiff48e/62979386340.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fda3cf26b4---28607162801.pdfIn PDF document text
- https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/18097016a8f079314b5c2c9709185f96/nugimujot.pdfIn PDF document text
- http://abwingsjanaf.com/uploads/files/voxinivariveben.pdfIn PDF document text
- https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/74259df4fdc32ad0010359e1198305d3/gilawa.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b90e1627de5---55068622473.pdfIn PDF document text
- http://yasairamenbar.com/uploads/files/litarafiwekidof.pdfIn PDF document text
- http://kodemari.info/data/files/wopovijetaduporikixemuj.pdfIn PDF document text
- https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/23b8b7984ec4a905d1190c32cf920fb0/lidovawedegogop.pdfIn PDF document text
- http://www.bluefashion.cz/ckfinder/userfiles/files/dimugosupuperu.pdfIn PDF document text
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/4d7ee4d9fc777d7da1ccbcf07a73d7b9/99140419826.pdfIn PDF document text
- http://secretlove.ch/ckfinder/userfiles/files/79343634636.pdfIn PDF document text
- https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/27833a764cbba3c9bca337cda11f31f0/53829244559.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=tivoli+audio+songbook+service+manualPDF 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_off0000b23a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB23A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA4C | 13976 bytes |
SHA-256: 08a4eaf9ce2a3d54f44800047e15647177653d2c527958ae24bf188a47b6d2f1 |
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font_02_sfnt_off0000ecb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB3 | 10976 bytes |
SHA-256: 9fd33bdedf8e7eccc7b9af91c89ed844424212fb6a44a988c6e7e011545d7519 |
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