MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and the PDF_SEO_DISPOSABLE_LINK_FARM firing further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://inwebjor.ru/uplcv?utm_term=what+is+time+and+a+half+of+12.50
- http://55pluscommunityspecialist.com/userfiles/files/10732608983.pdf
- https://ltanimalpark.com/wp-content/plugins/super-forms/uploads/php/files/d5b15b3af74c5f8921f265499aa5e318/fuxosesijonuwesopit.pdf
- http://bhhangkhong.com/upload/images/files/voroviwixowejixenopomufim.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/elogh4o28j9sp9bjvvo477i3r5/dipovozibesupibenugeripim.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/bmo685hl7jhqgkd7ph7a5anl15/34447052168.pdf
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/9ac3449e6aebd13ea302f033e63f4ea9/68077636325.pdf
- https://capecoralliving.com/media/file/81219491442.pdf
- http://ladue62.com/clients/2/2d/2d0487a90c18d3a1b3df44839405a665/File/dalipinuxetod.pdf
- https://happycolaborativo.com/uploads/files/zapoxawobepaxekote.pdf
- http://richmediahouse.com/admin/uploads/file/fakofolebudulupulira.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160c69eb5a3487---nunamo.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/fv59kqunrjdjmpeejq99mmt6d4/fikiwikamos.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/1ca5be5f5158309231829b82724b16c0/3076322056.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160871ddecdc07---fuvede.pdf
- https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/3a0e71a38899d7e6d1f7c9158bed2a3e/95122760195.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/5njmpe9qpmfl0acp887ojt93hv/21679655985.pdf
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e029edae52---tisijav.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/1a24114e519c59b96be99e94ca525df1/sarevukilafixo.pdf
- https://zionapostolicministries.org/uploads/file/17231612906.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/492362de39e729172f45abb7950dceeb/16240427686.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/31afb2c8507a99167454e3d3ef0d70ca/mosavesesirufexunojux.pdf
- http://slp70.com/clients/873855/File/82666936408.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_off0000f77f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77F | 16792 bytes |
font_01_sfnt_off00010f96.bin5e084783d88033c49fbc83d966d81ca9152530ecda8eb93be66ec72eb73f9143 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F96 | 11008 bytes |
font_02_sfnt_off00012919.bin5700cf3d143bc3b5381f671b763f55ff361df792eeef6f0a76b071b6cedc6c70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12919 | 17448 bytes |
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