MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified the PDF as a link farm pointing to compromised WordPress upload storage and disposable hosting, with one URL containing a 'utm_term' parameter suggesting a phishing lure. The document body was unreadable, but the overall structure and URL analysis strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://smidgel.ru/uplcv?utm_term=joi+unlimited+coins
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c3e39dfdb---kagegajuposoxak.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16149e9dc7607f---ralofibupeferedireporu.pdf
- http://gemtown88.com/PicOther/file/84718560058.pdf
- http://www.extramas.com/userfiles/files/9635738607.pdf
- http://studioturina.com/userfiles/files/12675402997.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613e2e7c1229b---mavubanibasama.pdf
- http://elcolono.net/userfiles/files/suruzegamoji.pdf
- http://ongxoanhdpe.vn/upload/files/nilenami.pdf
- https://andrejc.si/files/file/faluru.pdf
- https://fultoys.com/userfiles/32603680380.pdf
- http://transgusto.ch/userfiles/file/33900863196.pdf
- http://floral-design-lindgens.de/userfiles/file/mimavuluw.pdf
- http://thedewakohchang.com/image/upload/File/omowabuzunokuvuzopanonaw.pdf
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614e953ad8ee2---25604959477.pdf
- http://mcutech.net/files/womubavowot.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/4777b74e8ab072288e1d509e6297aea9/vefogolulemujudi.pdf
- http://phongkhamthienhoa.org/images/files/zewufofutefi.pdf
- http://bananamusic.tw/uploads/files/202109140046507417.pdf
- https://podimercrm.com/img/files/nopenuxaxitedisiliraw.pdf
- http://hotelalbicia.com/userfiles/file/47964173205.pdf
- https://mimpi1pusat.com/contents/files/38848952047.pdf
- http://www.deco-interieure.com/userfiles/file/temilelisanoparavekobuxas.pdf
- http://kaiyudachem.com/filespath/files/20210911122450.pdf
- https://burgaseguros.com/userfiles/file/60628323813.pdf
- https://communeouchamps.fr/userfiles/file/67978455289.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_off0000b20e.binbf9fe9e73e10f0c725744f6f7b19e90c8e37e404defe93f17c15d071a4d929e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB20E | 16080 bytes |
font_01_sfnt_off0000dab4.binfbd48095db292d83a989316df351276304f6576d58d8872dd59ccb876841bdf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAB4 | 10360 bytes |
font_02_sfnt_off0000f217.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF217 | 16792 bytes |
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