MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple potentially compromised websites. The presence of numerous unknown URLs suggests an attempt to distribute malware or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://china-hold.com/UploadFile/file/20210607105124604.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a349631b302---wetokojorusunefo.pdf
- http://dxczx.com/ckfinder/userfiles/files/20210611_123136.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c80d0cf43---55255879187.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f26f95fd3---72185151968.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/afe8dc3611f2034c9969c1bb176bdf69/61941255974.pdf
- https://ludifrance.fr/userfiles/file/towuga.pdf
- https://campermagazine.tv/public/file/fifowitarujemiles.pdf
- http://gayaarchi.com/userfiles/file/20210619004653.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/516ac21448ef382d8d8d8fc3932eeb2e/23493364500.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b942b1cc118---diwedi.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6d324b86c---lajikubepadiwomitigudeni.pdf
- http://agataklimowska.pl/userfiles/file/94113266187.pdf
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160857505b01f9---sirewelu.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/976e5088720efd6262e62c8c1dc585e2/jinobidobexu.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160d4d2dfd46c9---4039725962.pdf
- http://jr-bang.com/uploadfiles/20210617041322.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1c9904aa8---70651211667.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b26fe87d6c0---6884417188.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160702df53c0de---68885484655.pdf
- http://afghansolar.com/userfiles/file/vexapewidixo.pdf
- http://uppercanadatwocylinderclub.com/clients/877835/File/teperovu.pdf
- https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/c8945aab9a592e88be80dab72bd00fb7/sopededirozujesikot.pdf
- http://bayanairag.com/uploads/userfiles/files/89724647445.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b06df214cad---fotuwizudefemokuf.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a7675acf2---21707378048.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=pair+of+words+with+sentences
- 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_off00011518.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11518 | 16792 bytes |
font_01_sfnt_off00012d2f.binfaaa5c2df451b20eb1d679f5b6c22bf67027c5aabe12eeb922de70a15d311aa2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D2F | 10616 bytes |
font_02_sfnt_off00014574.bin273f76a2b44bc412c13ce96fe5eec028f96bc1e2b348dad5fd790411f36ebc85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14574 | 17308 bytes |
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