MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high probability of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites. These links are likely used to lure victims into downloading further malicious content or visiting phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://irlanc.ru/uplcv?utm_term=present+perfect+and+present+perfect+continuous+exercise+pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/febdde2624fca315b90b6eb18153542f/83782951724.pdf
- http://chingyi.tw/userfiles/files/67148966386.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b81847a61ed---kufodojebugowo.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/21202d5f3cef490bbb9503ecb7bc3cb2/rokusinolawato.pdf
- http://msamericapageant.com/clients/873634/File/20506538124.pdf
- https://olmitek.by/wp-content/plugins/super-forms/uploads/php/files/u9meonrp1jns0vhnbu3kohg6s7/28406373118.pdf
- http://maidichike.com/upload/files/43219770899.pdf
- http://panova-art.com/files/file/21020551307.pdf
- http://evpltravel.com/xv_image/file/29125623777.pdf
- http://statsale.com/data/upload/ck/files/6109960894.pdf
- http://paolacaone.eu/userfiles/files/gurelibitowosetopajedu.pdf
- http://smenergy.kr/uploaded/file/45845991160fd3a65164cb.pdf
- http://sprinter-lab.ru/content/File/91867805026.pdf
- https://saksisan.com/upload/ckfinder/files/89693813568.pdf
- http://zubrcup.by/files/files/86451231812.pdf
- http://fructusartis.com/i/File/puwapuju.pdf
- http://artgraf24.pl/userfiles/file/jajoneginesokifoku.pdf
- https://pacpartner.net/images_client//imagesfile/kavik.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f2f3a07f6---53168606930.pdf
- https://maggies-handmade.com/UserFiles/files/46426351264.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16100b44dd417b---zezajesaz.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b77fbfcc003---60161808630.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c55ba231edf---41572510810.pdf
- https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/13bd0f9943275cbc35671b0d3aafaa3d/nobuvilozizejope.pdf
- http://sochisushi.nl/survey/userfiles/files/pesigivezo.pdf
- http://lawyergz.net//uploadfile/files/mogopaditerosazex.pdf
- 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_off0000c589.bin24d2a608807b01a7f250c413c89ce0193042e6803e03af136bea41d56f5c0674 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC589 | 10768 bytes |
font_01_sfnt_off0000de7a.binfef531ff027fbbc1b825a2c34db3298c7b58a00037922b2699fe719dc2704573 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE7A | 17008 bytes |
font_02_sfnt_off0001096d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1096D | 16792 bytes |
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