MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to other PDF files hosted on compromised websites. The presence of multiple distinct hosts and the use of 'utm_term' parameters suggest an attempt at SEO poisoning or directing users to potentially malicious content. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/dc6c9cab3c799efa70ca6bdf1a6a1837/23172345379.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d3989e2fa---puzonavijezesubonoxaniza.pdf
- https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/4440bc94fe85ca3036cc655a70f71bba/13809867399.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/rkj9erev22d729272asho8vnk3/fufopekitodufumazobifir.pdf
- http://obrienbuilders.com/userfiles/file/suwaji.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/32f2b7443e41a3cc9698a0c676eb0327/16438287471.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1aba6078e---28563613664.pdf
- http://randoquad72.fr/userfiles/file/4836113440.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a453e976b31---94975959072.pdf
- http://ajivikafinance.com/userfiles/file/55515590605.pdf
- https://xistenze.com/files/files/kasusiw.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/m4sk84ro1vf09fcto5hhp1h4q6/99925736965.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/0951debe89ca453389f26d4e4cb9de72/50684042766.pdf
- http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/0e1b38372b6568de81a95b95f9862587/54266643994.pdf
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/0udrm7d46oi7oge3g4fba7hb5k/13039796972.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/3c5b2d67601aa3a330ae8f726b0c4f43/zelitinasabilufejadusulig.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/a2097afcc9c8d0cac524831d051b822e/21177401450.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/4d691e8bed256d8c148f52f2110d08aa/medokopedexatosejidedun.pdf
- http://alexanderkanevskyartistbiography.com/clientMedia/file/75301603723.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/d6f96bd13bd6a11b09227266c3eca08e/noruvoludatunanu.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c19f22bd7f4---jukiwamoveludu.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/520cc64a7a47dc1c436fc173a84c61df/15712720910.pdf
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/k7i4f3kf001pr4b9ebcgftese0/wukifuxazi.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a89fbf4c1aa---8377270834.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160860f1b8c825---xobujijosi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+reassess+your+chess+pdf+download
- 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_off0000f19c.bin37c8e957036cf96901fed2db89fc514d312e6d7219de02f65a8d72b6c70b5fca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF19C | 17328 bytes |
font_01_sfnt_off00011ebd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EBD | 16792 bytes |
font_02_sfnt_off000136d4.binf91f4210eeb53cfaa010b90957dfba9721a7f8292369b872d164ef44523c68b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136D4 | 10916 bytes |
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