MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains a link farm with numerous URLs pointing to compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of multiple distinct hosts and the use of 'utm_term' parameters indicate a coordinated effort to distribute malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9781
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://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d27c04032fa---90531839642.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/qb74ji8tantq6mt4oc1rottck1/xibigolu.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d4b8c4e68---rizofafusug.pdf
- http://beerskiboot.de/img/upload/file/94179546490.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f8bad6808---33022027960.pdf
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccecbd2be7---rumepejeranifu.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/bda79d2533f7810099c8a285dcb59647/tavitiwaxipewevorugil.pdf
- http://sanitaerprofi.ch/fckeditor/editor/images/file/18310917213.pdf
- https://www.nickelmarket.co.za/includes/ckfinder/userfiles/files/29471364451.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606d7e656f3cc---65154037147.pdf
- https://www.alapan.org/fckimages/file/63385387324.pdf
- http://thecreditcrisis.net/clients/73966/File/buzumo.pdf
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0305770f78---biziloluper.pdf
- https://brtim.com/uploads/wysiwyg/files/68144513949.pdf
- http://willbramephotography.com/11383430509.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/64bebe72ed16380c479fb1c38f92efff/49114467473.pdf
- https://twr1115.net/files/fckeditor/file/87507401352.pdf
- https://bosingels.nl/ckfinder/userfiles/files/fosijexugenim.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cfea0a68a---60933780641.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/kfhl2u47fadurf0gbkpnhlfd11/11738706355.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b601a22980---raguzewoletarenunexi.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/400659c9faac6d85d2a8404016532a59/59222425207.pdf
- http://metabolit-plus.ru/files/file/nezurevomase.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=anabelle+comes+home+yts
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off0000ec7a.bin52acac7be7da9e9654129c6cb5d02be298248702114fe0ea1bf7dfd891aae096 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xEC7A | 17960 bytes |
font_00_sfnt_off0000e280.bin0d91b93c30cdb4b9fcc5287ef31e0f6d3b75050094e35c3303e90e7f2c1d387e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE280 | 2296 bytes |
font_02_sfnt_off0001087a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1087A | 16792 bytes |
font_03_sfnt_off0001208c.binfe4afb25e2cbf733cf396079de68666064bd4623abfbe9c0714d1a566626a621 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1208C | 27804 bytes |
font_04_sfnt_off00016579.bin24e17fff4348171d4b50e70eb88ac3a19c521928306b77cf8773819166dab49b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16579 | 10536 bytes |
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