MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm pointing to compromised WordPress uploads and disposable hosting. The document body is heavily obfuscated, but the presence of numerous embedded URLs and the heuristic findings strongly suggest a phishing or malware distribution attempt, likely disguised as a free download lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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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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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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://fusheng-vietnam.vn/admin/webroot/upload/image/files/moratogurelugo.pdf
- http://massvt.sk/editor_uploads/system/files/98593518705.pdf
- http://wecans.net/_UploadFile/Images/file/kegiwetetepaluviguf.pdf
- https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/3l1ofg8kb2pbgp2ev034pr9c83/69306189118.pdf
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/pdl8lhl50u5erok2jc9g92fudq/vadetetunibubiv.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/02e869ff13c8dd1db8c4f77c32e7b7b9/wegawe.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16072ae235d95f---18159277587.pdf
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077b34dd7783---7371801599.pdf
- https://banderlogclub.ru/Files/file/wobumufuwexukegumunodud.pdf
- https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/0f1942fe766aecee4d1cf3d16e4c9325/zukovidupexesuz.pdf
- https://argumentua.com/i/file/57809371425.pdf
- http://learnersdigest.org/userfiles/file/64618527722.pdf
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/384df7b1dbe1cf56d6e353f7cb513759/nowafadowopam.pdf
- https://llsindia.in/FCKeditor/file/95424404214.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078df0b390ee---59397466018.pdf
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/175090873c8d6542abd4a18234aff57f/sareravufowelefevafa.pdf
- https://oklasik.com/ckfinder/userfiles/files/murudamaw.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/1r6k7dogqgjsfg3rrv76pfj7g5/rorigo.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608853904a4b3---6239921408.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/160c3dce48473d---49357988579.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1606d34c17f086---19814036494.pdf
- https://childconcern.in/trila/userfiles/file/66984588645.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=free+download+sims+4+expansion+packs
- 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_off0000eb5b.bin29dfaa882f64772a7d26e07b2a3b76745520182f238f14313ef4c7d98f99288b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5B | 18548 bytes |
font_01_sfnt_off00011c21.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C21 | 16792 bytes |
font_02_sfnt_off00013438.bin226ea7dd93002c07ec9c06989b7984499e7e3a6ba58ab450774924f3eb397844 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13438 | 10912 bytes |
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