MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress upload directories. These links likely serve as redirects to malicious or phishing content, a common tactic for initial access via spearphishing attachments.
Machine Learning
- Nyx PDF Classifier malicious score 0.9786
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 http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e5d5608d0---24564003179.pdf
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/h0rkkhisptgaeeu466pcer3gg4/98723382362.pdf
- http://beiwendq.com//data/attachment/file/siperubivinowurusu.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160da243a7ecbb---nubafer.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160854f5d057c5---26899265190.pdf
- http://fautographie.org/images/userfiles/files/bupuzuxipejivawavulo.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/2f1323ae2a8781ca29f4c3af146219c3/71725848562.pdf
- http://senseoftourism.dk/userfiles/file/67345822130.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2dfef99960---zaxomibizoluvevo.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/f1ba75ee8c63ec1ead110375fb7e8b02/65285971367.pdf
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/87d4cs67mn5f4173lgc38volr4/nolupirozu.pdf
- https://riolospettacoli.it/filesUploads/file/23579770223.pdf
- https://mgogs.com/mgfiles/file/87029745852.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/f1a453c8cdf53d4d53878d1a27a7fb25/vexanunimasosuk.pdf
- http://daisytalavera.com/userfiles/files/rowakirojigidigejisoxume.pdf
- http://aqbnb.com/uploadfile/file/tomofeno.pdf
- http://kbo.pl/ckfinder/userfiles/files/17705859830.pdf
- https://pelicanfinancialnetwork.com/ckfinder/userfiles/files/somuxumupidapiwesavuser.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fb91e62527---fegujunozetawawoluloxid.pdf
- http://lyshiying.com/d/files/fufasesivapotavun.pdf
- http://tuccifamilyonline.com/clients/b/b5/b5aed9f4ae8fd2b300021b46b426cae6/File/37610943134.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c7289328a23---52453154287.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16095cadc3fbf7---daxirab.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160774cd386bd5---lawunofetakamefuk.pdf
- https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/181692724e7d40e82f29cf2d40f39c7d/badalasigoganumul.pdf
- http://thaoduocquyhiem.com/userfiles/image/file/85310651079.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=best+knot+for+swing
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ed5c.bin922fa223f63994583ddce2c9769fb555888caec7d8b433aafdb92cdef49fd721 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED5C | 10412 bytes |
font_01_sfnt_off00010535.bin7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10535 | 16312 bytes |
font_02_sfnt_off00011b40.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B40 | 16792 bytes |
font_03_sfnt_off00013352.bin86b6b34b7f1df8fb15c53739898b2f2ffe82de863b79af9d08db3b6d8fee2ac8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13352 | 17416 bytes |
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