MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, containing numerous URLs pointing to compromised WordPress upload directories. These links likely serve as lures for phishing attacks or to distribute further malware payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160986d228ef35---8114399257.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16097580a24718---papuzexibiduxi.pdf
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/7fb9285aeed0655300bf51d499e0f49b/diwifunonovopat.pdf
- http://scvumaichiramen.com/uploads/files/zogurulubupa.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/00f18ba12ec95ceed333a776195f10a5/matokudopigezuxu.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb263da105---15602874914.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/khe62fnlc418kd6c265jrlbp59/22663573349.pdf
- https://alnahamgroup.com/userfiles/file/gosuzejugumeze.pdf
- http://xboxheerlen.nl/userfiles/file/rerozi.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/bc99896a21bbe4d699470c0f9954a8bb/voforefuwatupojibidedezap.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160887d10d8d71---kegekogipojugatigotos.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/5ef64e5eded63b8dc8fb052977a4699b/timurenunikob.pdf
- https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/5b6727dc9dd782a2373ce765d8b2b566/85648541686.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/ta01alf4af838ft65u3h16ad5h/8039711774.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/imomn0n57rbfk8lnu48ie9tcip/xelapuj.pdf
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/f8e0d2458d4871eaaddf77a556708816/17572695925.pdf
- https://glearningsolutions.com/userfiles/files/64321869778.pdf
- http://sowitech.vn/upload/files/78105667777.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/cknjbg1mrk1uvvo1mg28bfckt5/52305783866.pdf
- https://apc-algercentre.dz/ckfinder/userfiles/files/947969959.pdf
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/e7iu9eoqhur5ikpc28bels2th2/70142248355.pdf
- http://englandmatchshirts.com/assets/file/judenuxijagexexijora.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=ardmore+public+library
- 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_off0000f128.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF128 | 16792 bytes |
font_01_sfnt_off0001093a.bin6937d9c808b4e96cb31603ce7651f87a18b62d8022fcbd95b813dfcf7dd14175 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1093A | 17648 bytes |
font_02_sfnt_off0001371d.binc3865359b69d6ea97df5233dc7a4128840ae0450485fb95172e6eda58ee5db86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1371D | 10640 bytes |
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