MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised CMS upload locations, a common technique for distributing malicious content or conducting phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of numerous unknown URLs suggests a broad attempt to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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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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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://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613256d1b5895---24577228293.pdf
- http://locthanhroyal.com/upload/files/zefurumozipi.pdf
- http://schubert-hh.de/image/file/wivumofomekidogefiv.pdf
- http://robwalker.net/fckupload/file/nijanevumezuvisiwetuz.pdf
- http://civicwomen.com/ckfiles/files/42673069427.pdf
- http://bresky.cz/res/file/4444793540.pdf
- http://ateliergermain.org/sites/default/files/file/87714742688.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/161304f9731c46---7475079647.pdf
- http://yuh-tarng.com/userfiles/file/daniwesizelidunaloxa.pdf
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/sobesuzuvukumopudot.pdf
- http://khamtribacninh.com/images/files/84671277194.pdf
- http://petswithlove.com/cvsprojects/SSK/Source/2.0.0/images/files/14516249044.pdf
- https://oxi-dental.ro/imagini_ws/dusozelizidole.pdf
- http://18554080.com/userfiles/file/45524822483.pdf
- https://rotitelor.com/contents/files/54227245793.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fa5344a717---51956124750.pdf
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/161300c5348924---vifepazopuxijariz.pdf
- http://gekon.net/userfiles/file/tifijibefoxusotirifigu.pdf
- http://ruresept.ru/files/file/tofojaxisatonis.pdf
- http://khachsansapa.vn/webroot/img/files/89306341912.pdf
- http://taxicityplus.ru/userfiles/file/takudaruzejomu.pdf
- http://dsraxys.com/uploads/81614116960.pdf
- https://tomorrowhubs.com/upload/users/files/68535105282.pdf
- http://plymouth-logs.co.uk/ckfinder/userfiles/files/63526822354.pdf
- https://forexinc.ca/upload/editor/file/sofajaledaranudagum.pdf
- http://gzperson.com/uploadfile/files/gemupuvi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=remembering+the+kanji+6th+edition+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_off0000d2b3.bin8dab7c5ff5e79b8324559f0d96f75bf8ff46b3617887232a3cb95d95ffecac69 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2B3 | 18284 bytes |
font_01_sfnt_off00010223.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10223 | 16792 bytes |
font_02_sfnt_off00011a3a.bin022d18053a63fa464e9fb3e8dbcc401281d6fcd12e959f63d92417a0b16310bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A3A | 11308 bytes |
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