MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting it functions as a link farm to distribute or phish. The presence of external URIs and link farms indicates an attempt to redirect the user to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://queure.ru/uplcv?utm_term=bud+not+buddy+lesson+plans
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606ced308d898---81550764672.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a284409b5f7---xotokudujisub.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fec3aa8529---27232472932.pdf
- http://plncse.hu/php_data/file/53175344868.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/325836e28637b8ca749cb636fad41a52/69927859335.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a84d62f23eb---17234445719.pdf
- http://allamericannursing.com/userfiles/file/refakozimesok.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba9e8bebf36---2182797149.pdf
- http://tcihk.com/userfiles/poxoseni.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b2250636a---76024531702.pdf
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607203ae5e75a---nezewurotare.pdf
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/23516b245d6b99e50265127e9710f2c9/44717395585.pdf
- https://mfdesign.hu/files/file/19760591703.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c66a6964687---mujinasuf.pdf
- http://greenbiotech.vn/uploads/userfiles/file/xasulubazomegaxutile.pdf
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/ce921fa96893b44fa90b375c5829019a/vuwobove.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd184672432---55377029485.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/9141e65d7babd4b65129f9c044bd00fc/10246404595.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/e86d8cd9f7032e9419f6846721fafccc/5532169203.pdf
- https://avela.md/userfiles/file/vuvakivapuxejis.pdf
- http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/nadusagovazena.pdf
- https://brothers-music.com/ckfinder/userfiles/files/voxotaxakoxiwiwam.pdf
- https://www.elitelawnsolutions.co.uk/wp-content/plugins/super-forms/uploads/php/files/m9pl59fbnrgrv88i8ujvoe5b4v/rotaxaruzaxotajobawiw.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_off0000f9e8.bine1d56632a2d666744b9225068ace43b67ba7aaf51fe40081f9fbf67f81fc2ad6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9E8 | 17408 bytes |
font_01_sfnt_off0001277e.bin56d11a12a3ad0cae0da9b5012b77f70e31727b4e926a0edabfd9b573dba9a628 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1277E | 10600 bytes |
font_02_sfnt_off00013fbd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FBD | 16792 bytes |
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