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 identified it as a link farm, with many URLs pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The document body was unreadable, but the presence of numerous external links and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly indicate the primary goal is to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://aksusu.com/upload/files/47146966693.pdf
- http://electric-kernbichler.at/mumujefasedepuva.pdf
- https://bhiringisamsankalimandir.org/userfiles/file/bagowuwabiladavesuxewol.pdf
- http://magendans.com/imagefiles/file/nomofusipar.pdf
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/3bab112887c248e8533e66699864e9c6/futivawapujumuwoxof.pdf
- http://jubileejec.com/userfiles/files/tapuravenumunubinex.pdf
- http://rlmlaw.com/images/edit_images/file/3319369764.pdf
- https://alrukn.co/userfiles/files/nazetadowasigexumito.pdf
- http://efrex.cz/files/file/luzukaroromuj.pdf
- https://beautydent.hu/editor_up/42934594907.pdf
- http://hoteldanang.com/uploads/images/files/89797047843.pdf
- http://systemsbiology.at/uploads/assets/file/11529847778.pdf
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/4ea29361e66eddbddf04b6dde0b400e0/22163012308.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/m8a39qt0htppir1qmbl6eadoef/34597532410.pdf
- https://manenshop.com/upload/files/42187985904.pdf
- https://sapporomn.com/userfiles/files/tikuwesirexe.pdf
- http://globalfeedindustry.com/upload/files/nusegew.pdf
- http://atsolution.org/userfiles/file/20210915233501486471557.pdf
- https://cafesca.mx/ckfinder/userfiles/files/96601570780.pdf
- http://energosol.pl/images_cms/file/60427521998.pdf
- https://ofly.om-digitalsolutions.cn/upload/files/18829737725.pdf
- http://liceoadultos.juniorcollege.cl/userfiles/files/26642597579.pdf
- https://transmar.biz/ckfinder/userfiles/files/xifujepavajewisozogosoj.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/e5a25fc5f9e7e87fdb0f984ddf789e52/60998000904.pdf
- http://webinaris.blog/ckfinder/userfiles/publics/files/juzumizoruxukijiluke.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+get+v+bucks+easy
- 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_off0000d0d5.binfbb50cdb5af8f777e2f2b7d87d109ab35e1c9038b0c8bc3d9cd54230794a2be2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0D5 | 19104 bytes |
font_01_sfnt_off000102da.binc167d457cbb6ccb11fa6299d6e7c75f56100df97e7955df60885f820943736c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102DA | 10652 bytes |
font_02_sfnt_off00011b84.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B84 | 16792 bytes |
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