MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple distinct hosts, many of which appear to be compromised or disposable. The presence of numerous PDF links and the use of 'utm_term' parameters suggest an attempt to manipulate search engine results or track phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://nadiadsa.org/userfiles/file/zililasoperamadis.pdf
- http://russkiivopros.com/images/FCKeditor/file/53854700069.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/3df6nnqj1t2nbfe87ka5actml2/nibibis.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea95b50eea---96324402663.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608030e862c01---ginavowosoduw.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070b005c3737---67889549287.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160dd64ecc820e---muxisi.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81ed5a0de---78846752041.pdf
- https://bomberosdenavarra.com/userfiles_nexo/files/94273979868.pdf
- http://veterina-hrib.cz/user-uploads/files/56844026949.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16081ef0ca936e---lajidobikexafado.pdf
- http://drwatsonsr.com/clients/2/2b/2b9a0cf27321ceab3a47fbd10bf94d34/File/gorokajunabilutup.pdf
- http://allnatureint.com/userfiles/file/legaxamelu.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/864ac5578189f238085b87ab95a414e7/xawevoka.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/2ef36cb4dde0ee5b1ae77ca08013b23d/xafesij.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160964f1bc951d---podapen.pdf
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/a95a27b1d703a50c47ca13e3753b3a08/nekakumilut.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe62dd2ce3---78814294796.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc6e655476---5426272493.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8cdb679b78---ralukegezexivalugofotipit.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/493bd53a5e175e19fd5d729e46402278/18094819080.pdf
- https://augsburger-dartliga.de/uploads/file/88032187526.pdf
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/ggqr4ksmkboc9lnbbc3ldqi8q5/nategepefuja.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=wells+fargo+interview+answers
- 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_off0000e81f.bin29fc53feede4ba12cc6471d169ef92c532dbb07d5ab6f5c06b011c85dc17e66a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE81F | 17904 bytes |
font_01_sfnt_off00011617.bin2dc9d276cdbc02af1565e1cff0c3c3ee62b59677c84155734c873c3971677852 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11617 | 10536 bytes |
font_02_sfnt_off00012e4c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E4C | 16792 bytes |
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