MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The presence of numerous URLs, including one with a 'utm_term' parameter suggesting tracking, points towards a phishing or malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://inwebjor.ru/uplcv?utm_term=happymod+app+cloner PDF link annotation
- http://manchetenewsms.com.br/ckfinder/userfiles/files/galuki.pdfIn PDF document text
- http://mellorymotors.ru/admin/ckfinder/userfiles/files/87315334175.pdfIn PDF document text
- http://ps-chiptuning.hu/userfiles/files/21543812602.pdfIn PDF document text
- http://podhoru.cz/userfiles/file/12864026880.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142a76bd829a---84569203770.pdfIn PDF document text
- http://cephedanismani.com/images/pages/file/53789439440.pdfIn PDF document text
- http://spec-so.ru/sites/default/files/file/tokilukunurosip.pdfIn PDF document text
- https://specializedfacilitymgt.com/public_html/userfiles/file/fimodizutagavidagoga.pdfIn PDF document text
- http://www.psyforyou.nl/upload/fckeditor/file/bezapinutubajurivuwin.pdfIn PDF document text
- http://szyoujin.com/UploadFile/file/20210907213158475.pdfIn PDF document text
- http://gorisum.net/fckeditor/upload_file/file/sajebop.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/161304ebd90266---66656124124.pdfIn PDF document text
- http://decorstore.eu/upload/file/jelinikekokowabaw.pdfIn PDF document text
- https://piataafacerilor.ro/app/webroot/files/userfiles/files/26059141243.pdfIn PDF document text
- http://xedaptheduc.net/app/webroot/uploads/files/62711243580.pdfIn PDF document text
- http://kalmi.ru/upfiles/files/morufasirinexavulebowul.pdfIn PDF document text
- https://drinkpoint.com/uploads/files/47966442960.pdfIn PDF document text
- https://dcimx.com/files/rolivat.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135c899e3ae0---puretigeg.pdfIn PDF document text
- http://gpszone.hu/upload/userfiles/file/98665621191.pdfIn PDF document text
- http://kronospan-mofa-hungary.hu/editor_up/86603927983.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/16138fae372884---zozukupo.pdfIn PDF document text
- https://pellevah.com/upload/files/61189214618.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ccc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCC0 | 10424 bytes |
SHA-256: 0665cf9887bfb666d6cdc1fbcf27f04e604fcc0e11d1acb893cfe5499d376a3d |
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font_01_sfnt_off0000e440.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE440 | 20452 bytes |
SHA-256: 6b2ec3a2e2a16a24bda3012018293e05bcaf0b7361a5aac17971fe1e5fc76b98 |
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font_02_sfnt_off00011900.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11900 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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