MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier with high confidence. It contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised WordPress sites acting as a link farm. These links likely lead to phishing pages or further malware downloads, indicating a malicious intent to deceive users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/ta0v2dr1vghooq8rlfvi1ed8rq/16589689231.pdf
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/8680e64bd8371f97029db168ff7f812a/kefufalagapijikuposuwomem.pdf
- https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/8aqql98m41q319o7fd270scuhs/xokeluteja.pdf
- http://baodieptailor.com/uploads/2021-06-28/images/files/datukizixoxofoxo.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/52289d93827561e2b08c4f8c10c0435c/22804397093.pdf
- https://topclassgardening.nl/images/file/87152278911.pdf
- http://madveras.com/ckfinder/userfiles/files/gexekab.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/e966caef5a33d22386a9dd30b1bb7044/58490444741.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160cd033023887---90504828507.pdf
- http://amexeuro.com/an3_Uploads/file/pozafidowiwif.pdf
- http://exhibitionchannel.com/upload/jevawopetaperi.pdf
- http://wagnerpc.com/userfiles/files/56799794103.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608acd8973dbe---52954213538.pdf
- http://reversetheclocknow.com/ckfinder/userfiles/files/50545583938.pdf
- https://easybuildapp.com/files/uploaded/files/matoropaxavusopemevinanu.pdf
- http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609583cac7215---97500413749.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9548d9b6e0---jazoradunuvetafuwab.pdf
- http://amblesidewindermere.ca/fckuploads/images/file/69299343787.pdf
- https://dienlanhhonganh.com/images/pic/file/42919391936.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160827fee0d56d---gorojogejalemarizos.pdf
- https://reaga.net/js/ckfinder/userfiles/files/51575718020.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/1f79ba9765e21250b44f6a80bb1d6e72/pulozovutofoketilalitis.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=los+asesinos+en+serie+m%C3%A1s+famosos+de+la+historia
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000210cf.binfe3d2c88bbd7daad2f3166e70d2aa90a41af514c0176f012ffbfacfaacdc69fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x210CF | 29416 bytes |
font_01_sfnt_off00025628.bine0ba5856d71679c0b59396f7a74f8b585cf4f658ec49638200ba5c6b9b242d36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25628 | 10756 bytes |
font_02_sfnt_off00026e3e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x26E3E | 16792 bytes |
font_03_sfnt_off0002864b.bin6a97e191fa81f8fa4dcb7da67a2dcb8a4f37678cda069e2ef8df160137793762 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2864B | 4212 bytes |
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