MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and a link farm pointing to compromised WordPress upload directories and other disposable hosting. The heuristics indicate it is designed to trick users into downloading further malicious content, likely a phishing payload, as suggested by the ClamAV detection 'Pdf.Phishing.Trojan'. The embedded JavaScript likely facilitates the download or redirection process.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 8
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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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://krisoc.ru/uplcv?utm_term=new+melody+mp3 PDF link annotation
- http://apsons.eu/files/file/74691686986.pdfIn PDF document text
- http://bestbuyfromindia.com/userfiles/file/gumuxobekoz.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/c5d7ca4c74ff79862802305ebe2f5bfc/joputumupareb.pdfIn PDF document text
- http://daieimotors.com/js/upload/files/17554010405.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d4565e87c6b---ponaxi.pdfIn PDF document text
- http://www.520amis.com/upload/files/zujoj.pdfIn PDF document text
- http://gilbertthomasreunion.com/clients/5/5f/5f56fe696be94dde62972871c8a9bc28/File/moxegaloxejetavabus.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/gujojemefiwovovogapudavo.pdfIn PDF document text
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/bc508857cecb87fdb30cb1d824c56014/25666328144.pdfIn PDF document text
- https://emauto.lv/index/images/up/file/pabolilezutudo.pdfIn PDF document text
- http://xahscw.com/userfiles/file/6561576843.pdfIn PDF document text
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/k2r3sgv4o4r10udqo3jbpnk796/zeroxekegeboxikogik.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/2de21f1673221c0c46907c17629145fc/72686492447.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c879e08719---6710004353.pdfIn PDF document text
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/5qgq5d6q1l21fu72km6csng527/sosugaritofexazifumor.pdfIn PDF document text
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/d787fdb6eb6bf7c2394acf6a61407d0c/59843226986.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607714879f59c---39108988481.pdfIn PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/b67d33180e3865eaca0b8a0d49cd575f/delaxizevanemomi.pdfIn PDF document text
- http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/b37234f484b6a90c6cb305a5fa4f3f3d/bazopazogejexu.pdfIn PDF document text
- http://aj-logistics.com/stock/userfiles/file/29055249815.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/ribikerakedi.pdfIn PDF document text
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/f29e7e80859961e3fb2dc79bb0bf27e1/neluxonikapidijomowava.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/ff1e43ec00b0c55d357d55131dc361cd/moterikeguwuvasu.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81c162b24---73708693467.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160755190b25af---29800448548.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d05a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD05A | 10180 bytes |
SHA-256: ddc787c976d04cecbd836f7c55b75afbc0281aa0e8b5a39150d702f79a7f6bc4 |
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font_01_sfnt_off0000e736.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE736 | 19120 bytes |
SHA-256: ed4e80c4e598b103bc738990b11e7e6bab7b598879de20a6c37e7b1285932c47 |
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font_02_sfnt_off00011926.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11926 | 11712 bytes |
SHA-256: 82517f79a7489d09e784dfe763bbc3fd8a003d6cb3005849bbd9f4cccf16c55e |
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font_03_sfnt_off00013f70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F70 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_04_sfnt_off00015781.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15781 | 16224 bytes |
SHA-256: 749d0e0a2ebbce6e3a842727ccefc785b5fde86fcdd6c62922dcb2c91ea58cfb |
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