MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm designed to trick users into downloading software, masquerading as "office 2007 setup free download with key". Several heuristics indicate the presence of a link farm on compromised WordPress sites, and ClamAV detected it as a phishing trojan. The ML classifier also flagged it as malicious with high confidence. No scripts were extracted, but the overall structure and URL targets suggest a phishing attempt to deliver a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/fed69e35211815098b263d75051f7729/31859011681.pdf
- https://planet-for-events.de/userfiles/file/1119689276.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607465747ea35---8511436120.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866459526a6---71653234319.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac5c2481b78---barudomitazazedijan.pdf
- http://bagiez.com/userfiles/file/tigubekav.pdf
- http://yasaitogo.com/uploads/files/tiwofijififigevasosop.pdf
- http://flatadministration.com/uploades/fckeditorfile/99586147909.pdf
- http://hasyo.net/files/file/37554132142.pdf
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/kfulut9v1rbcb8judl2rte8p74/diwatarefelofasibanejin.pdf
- https://braindevelopmentmaps.org/userfiles/files/67729414882.pdf
- http://perlawarmii.pl/userfiles/file/14095347872.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab1c6528da---lijilejut.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ab9d189981f---lofepenosinogimifogex.pdf
- http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45369041400.pdf
- http://tradeweb.es/userfiles/file/xoputujukekujuwikadokegu.pdf
- http://stonebreaker.at/dazomul.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075ff3d7a564---85563122990.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/e3b9140b0f6f501829c6baa56ba8e6b8/taxeviselagolemafeleti.pdf
- http://thuephotocopytaihanoi.com/upload/files/gobavop.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160857808681ec---porefisabukatibi.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d9160fdd3---63331779828.pdf
- https://ludifrance.fr/userfiles/file/53301430355.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=office+2007+setup+free+download+with+key
- 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_off0000f3da.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3DA | 16792 bytes |
font_01_sfnt_off00010bec.binc1baabc6ed8df04553f8349e8e76037a059a0e575c517036327ff61780c37056 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BEC | 17364 bytes |
font_02_sfnt_off0001395e.bin48acd8c84c14b709d1db7d0a53379c48ba36b47d9b01b953b79a518e2ee4b3c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1395E | 11428 bytes |
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