MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple URLs, with one specifically flagged as an algorithmically generated URL leading to a PDF file. Heuristics indicate it's a link farm on disposable hosting, a QR code redirect lure, and a visual download button lure, all pointing towards a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 9
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://garglob.ru/uplcv?utm_term=softbank+apn+settings+android
- http://thietbikhachsanvinhhung1.com/upload/files/75216537298.pdf
- http://sntaviator.ru/ckfinder/userfiles/files/sajodudororolav.pdf
- https://oncetrabzon.com/resimler/files/93535125418.pdf
- https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/88729550739.pdf
- https://elearning-chemistry.ro/userfiles/file/pozipowadudavivuluzoleto.pdf
- http://sibzakon.ru/ckfinder/userfiles/files/sadoj.pdf
- http://abaj.cz/UserFiles/File/73465479850.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161378b105adae---97131156395.pdf
- http://kozhencherrymtc.org/userfiles/file/19298998990.pdf
- https://ambulatorioveterinariosismondi.eu/file/rarejerefuzoxokamofa.pdf
- https://www.igescanada.com/ckfinder/userfiles/files/mirazipifetudijum.pdf
- https://bikeid.net/ckfinder/userfiles/files/fojuxuzarofozatom.pdf
- http://hcm-invoice.vn/hinhanh_fckeditor/file/pawipaf.pdf
- https://rajnnuhiddje.se/userfiles/file/41071904191.pdf
- http://acril.ru/ufiles/files/48576388838.pdf
- https://simplehome.ro/ckfinder/userfiles/files/36879339484.pdf
- http://pospatrans.cz/UserFiles/File/lidegewamifajoxudaz.pdf
- http://hoadon-dientu.net/images/files/wefaliwodovavez.pdf
- http://patrickstaxi.fr/userfiles/file/xiwatovex.pdf
- http://tieclangman.com/Images_upload/files/wodifexuwaluride.pdf
- https://hbfilm.ca/resimler/files/biwetefamo.pdf
- https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/xukawa.pdf
- http://heaig.org/editor/ckfinder/userfiles/files/18424634198.pdf
- http://potlista.com/file/files/56482684835.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/3d092fdb5039d9106cd28af117b0c500/vukapilamorazu.pdf
- 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_off0000f167.bin3ea8943b826cf1f9b4b4a8081d4bd0c5f02c87dcdd28f4de134ea56a49f3f157 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF167 | 20448 bytes |
font_01_sfnt_off000127f9.bin366761b40be79c5a44a2a287d704da4d01eba119b4192f5a16d6968a47b185ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127F9 | 10932 bytes |
font_02_sfnt_off0001410c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1410C | 16792 bytes |
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