MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's used to distribute further malware. The embedded URLs, such as http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a132cd8b5e6---xolabovevurelinab.pdf, are likely part of this distribution chain.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/86f1e12537eaa0116eb23edd06b14248/viwaditigivavot.pdf
- http://www.contectrade.hu/fckfiles/file/bumizamixeminap.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/8a10e7n85r7jca79aucsc2b1a2/votip.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a132cd8b5e6---xolabovevurelinab.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160b8ae995a275---63372197492.pdf
- http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gidapasemajavotozovunedi.pdf
- http://fashioneducation.ru/userfiles/file/watikoduxixog.pdf
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/nepoxekobewisijozo.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/13244e8cb7b58f44860fc18bc4d5f8b4/62076249859.pdf
- http://drive4smilesontario.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/1898843507.pdf
- http://saovietgroup.com/upload/FCK/file/nipoxadibubidaxovuzalotu.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/ed8chp8aa561hthgput5frld46/92613503074.pdf
- http://au-zlato.sk/upload/files/ziwakakegip.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0ce94c8aa---23453834583.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb402842f2---83564712771.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/fd64537d259e27faba6487f85eda4630/lobuxuduzedewapagis.pdf
- http://zkojicin.cz/userfiles/file/44256406867.pdf
- http://unseenadventure.com/userfiles/file/veduxaw.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/aj2b8tjt4mdgvv3cf5ccmphqq4/5444243997.pdf
- http://dmhu.eu/uploads/uplib/file/nuxowabakujufevubute.pdf
- http://kurskodkb.ru/page_edit/_samples/userfiles/files/bowezo.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/9dv58pb8ot387bip64366oj7rl/gikadopuvamobomavabuxu.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608accf7f3127---zaposafefujumiv.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b56c46e1cab---sesiwuj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=dastardly+and+muttley+in+their+flying+machines+stop+that+pigeon
- 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_off0000f744.bin39e35a4df83857ca4a70701e5a35b879598ea4ade2d78fdc88594b06ca59c331 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF744 | 11280 bytes |
font_01_sfnt_off0001115f.bin1aeca160dd5f416fca7648a73be98bbe01b9e045cda2299c1ea0ce289a21a09b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1115F | 17104 bytes |
font_02_sfnt_off00013e13.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E13 | 16792 bytes |
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