MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF is identified as malicious by multiple heuristics and ClamAV, indicating it's a phishing lure. It presents as an image-only document with a clickable action that redirects to external URLs, a common technique for delivering malicious payloads or harvesting credentials. The presence of numerous links to compromised CMS uploads and disposable hosting further supports its malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://e-uchebnici.com/img/file/30780813046.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/526db669dc66c0b7301f42571e27fd99/91563568638.pdf
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6847d9db5---buxipevopubugebefawi.pdf
- http://acecaalcoy.com/userfiles/file/vewinawakeka.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/28a9f45420a9cdb9b7715090fdfc6b69/rubozusozov.pdf
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/879d33322482cb9dfbb3075ed012ef39/gegikejed.pdf
- http://www.corazondelsol.es/ckfinder/userfiles/files/16997852194.pdf
- https://medtek.vn/storage/file/buvosukasavuminemaketeru.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c15a434530c---vudoxoziko.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc0f0bc3b24---wonofabu.pdf
- http://linker-apps.com/files/vezisinepufutovijonu.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/ac813b28917c193e9a91f33b44e9498e/55381549434.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/5d7f75su6i53idhraa7di14bf8/86132278070.pdf
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/49d8f033d7a815a55eb3927f474ebc66/18446586805.pdf
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/11566be05f2d6cdb89bb3cca3df97cda/65207717018.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160e26210a6b17---43151879799.pdf
- http://reinforcingourheritage.com/clients/0/08/0860c2a235168fe7e4a745c824023bdd/File/rumoloxamuzin.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf87ccb92e8---zewopadivugoz.pdf
- http://j1medical.com/uploaded/file/82587224590.pdf
- https://vokalensemble-vocembalo.ch/userfiles/file/94038282034.pdf
- https://malashealthcare.com/userfiles/files/jajufevoso.pdf
- http://paulsaperstein.com/userfiles/files/supotarasalakasa.pdf
- http://pillshop.ru/uimg/files/56094598024.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/a02a554241d5699616db09090ce17cee/saduvi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=eosinophils+absolute+0.5
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b414.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB414 | 16792 bytes |
font_01_sfnt_off0000cc2b.bin318291269eb262fa7f989bec1d4dfd735cb940e97385acb5ef3a9429536ebcb5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC2B | 10796 bytes |
font_02_sfnt_off0000e4b3.binf5213147888085f63bb4fd372bd10b33c86dbb78d874d886b7a2c596da484bdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4B3 | 13960 bytes |
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