MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to distribute malware. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to trick users into downloading a secondary payload via the presented links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 8
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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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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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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 http://crosswaysrecruitment.com/userfiles/file/34415886200.pdf
- https://tramhuonghanoi.vn/upload/files/1095797586.pdf
- https://vnycc.com/userfiles/file/sujiwixapiwutejakakepu.pdf
- http://hasicimosnov.cz/foto/Image/file/kiselotinu.pdf
- http://gustosandvic.com/ckfinder/userfiles/files/lojutitusi.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/b130c6253f784ec679a5e1b6e6eeb682/75200274939.pdf
- http://abpjseah.news-read.com/upload/files/45784904320.pdf
- http://farashimirooz.com/files/nirepagumonamipopizeje.pdf
- http://tischlerei-schlusche.de/sites/default/files/file/dagitonawazimumuvoxesot.pdf
- https://anmoul.com/userfiles/file/lelajedopenumozalolu.pdf
- http://justsayhi365.com/uploads/file/1747447674.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161324a6ade37a---sixopizevulowut.pdf
- http://studiocinti.eu/userfiles/files/35052821157.pdf
- https://jv-cms.crazy-jessie.nl/uploads/files/beduzotegapegotufaduwuru.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/pfco7udlc3h23ktp18ne36aol4/98249159677.pdf
- http://pastadimatteo.com/ckfinder/userfiles/files/95691484768.pdf
- http://filtrydokoparek.pl/img/all/vinuzevubifimipuz.pdf
- http://krasneclanky.cz/uploads/vabivasevusek.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/161423afb36aad---48212874851.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/nfkannnj9ihl4bp6q3akiqh9i5/72906608403.pdf
- http://www.lalorraineperdue.com/documents/9230037298.pdf
- https://imad0c0.com/js/ckfinder/userfiles/files/89098259463.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/26bf5d044063e66f73f4991b31fceee8/94760564325.pdf
- http://seatraveltx.com/uploads/files/wotitudemumowogetab.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=hacker+baba+virtual+space+apk
- 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_off0000ddae.bin3e6e212aa0a5565bafc33e08d2bd2c36ff190cc92332a5ce1911050e20133b9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDAE | 18316 bytes |
font_01_sfnt_off00010d61.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D61 | 16792 bytes |
font_02_sfnt_off00012578.binaf3412ed50c481ca048bbe16f5b7250dfc6365e7cc868750386018ed13ef9f77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12578 | 10532 bytes |
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