MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to compromised CMS upload directories, likely serving as a distribution point for further malicious content. The presence of external URIs and the overall structure suggest an attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9875
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://beepost.vn/upload/userfiles/files/28311087697.pdf
- http://forter.vn/hinhanh/file/58335289910.pdf
- http://sanitaerprofi.ch/fckeditor/editor/images/file/8202367034.pdf
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1608a250c6fbfa---56504178348.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/rn0jo4oqpok8j0cq9jprvmrk2m/liwopibifojuwiruditidaso.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/1607915ada59c8---zujolumomigazo.pdf
- http://aep-tc.com/cache/fck_files/file/levabawipap.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883699ebfd4---numuxafusatulivotixuvad.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074d8891aef4---82516357618.pdf
- http://thingsantiquesla.com/userfiles/files/lurewu.pdf
- https://cometsecurity.in/admin/userfiles/file/24127634762.pdf
- http://www.gesas.it/media/mailinglist/file/gowafudone.pdf
- http://www.findvoters.com/userfiles/file/15370612887.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097b341078a1---47538144961.pdf
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607da4f4cfef1---xugolaf.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16090bab228e6b---vosovudukopebemovirisixig.pdf
- http://capitolmetrophysicaltherapy.com/userfiles/file/89821920225.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e639f54383---11130546250.pdf
- https://hpsoft.shop/upload/files/vugebudomagedesobekevevo.pdf
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/7njrf3ug3dp8ub6qpq4ltl5f6t/kizovodem.pdf
- http://strandedtattoo.net/file/68818787454.pdf
- http://www.alcera.ca/userfiles/file/xefom.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160b3a60bad210---bemizarimasitozurolerut.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=another+word+for+heuristic
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c139.bine16b29352e2fcae5221a5d88650b6064ee3c09864391cd32ce578db3b3028991 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC139 | 19672 bytes |
font_01_sfnt_off0000f401.bin62661d259f1d7d068bd9633ad9f75b59beeb7f1754695aeb61b0b0985a6a1aa3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF401 | 10532 bytes |
font_02_sfnt_off00010c0b.bin90d02f119c2bd8307b02ba9046fe3d29e3790245278f44daa6cde583eaba22dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C0B | 16684 bytes |
font_03_sfnt_off000123cf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123CF | 16792 bytes |
font_04_sfnt_off00013bdc.binc61b4253a3eb8a282bd624f34390c73cdd141716fa7bc565b4e271a502d5b2ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BDC | 2996 bytes |
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