MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress sites hosting other PDF files. This behavior is indicative of a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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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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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://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160adf1d1d120a---muzatajekabudisamuzonoro.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b9aca6e5035---76420170965.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d2d59bd16---55170441014.pdf
- https://ntct-dz.com/ckfinder/userfiles/files/8104604530.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b841e7523c6---xejumisumunijesididexu.pdf
- http://travelshops.pl/userfiles/file/86440420597.pdf
- http://theonejsc.com/userfiles/file/jeroseluwifovipebuwezej.pdf
- http://www.hydro-tg.pro/upload/file/mewutanivimolarutejudaku.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160909d33b89c1---38021841014.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f673dadbaa---39082273514.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e47d6638664---2387798967.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/e42bb2a70120ad4ee104e235c7e0ae81/javovinizu.pdf
- http://asupuro.com/user_data/image//file/fatopob.pdf
- https://imagebeaute.fr/userfiles/file/35371496053.pdf
- https://asiajitu.com/contents//files/rakusetuzevomuzawaxutuv.pdf
- http://harasim.cz/uploaded/files/70915926299.pdf
- http://zonweringbelgie.nl/ckfinder/userfiles/files/wejikinidefagodekanedanes.pdf
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/35dcd4515c22779ffcde2261a4953861/76162604806.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/8k9t5gr0tuv534n5i5pe4eeliq/fejezaro.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/uk9plndrhhumo7d2lt5r8p82m2/pixufarudededonerej.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=instrument+proficiency+check+requirements
- 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_off0000d3cd.bin13e51d5e5eaacdadf52b445779699b7c0a5e87f957d2be3e6cf0c4f690ea9f07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3CD | 10940 bytes |
font_01_sfnt_off0000ed02.bin3cb4d87c7701f8834d2bf32aa7cd3b1534c535c116c21683272ee16234a05428 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED02 | 17368 bytes |
font_02_sfnt_off00011ab6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AB6 | 16792 bytes |
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