MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to compromised CMS uploads and disposable hosting sites, which in turn host more PDF files. This suggests a phishing or malware distribution campaign, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
Heuristics 6
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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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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=life+as+a+house+full+movie+free PDF link annotation
- http://marisqueandopremios.com/campannas/file/gukakenedom.pdfIn PDF document text
- http://funkyspa.net/ckfinder/userfiles/files/lozipelubovejovadukema.pdfIn PDF document text
- http://namuvaldymas.lt/userfiles/file/91204385282.pdfIn PDF document text
- https://www.cylinder96.ru/admin/ckfinder/userfiles/files/4527904037.pdfIn PDF document text
- https://riwg.in/userfiles/file/sapoturinaxuwelexajobo.pdfIn PDF document text
- https://1tlstar.com/storage/uploads/files/sodeburubelug.pdfIn PDF document text
- http://bladensburg.abwingsmd.com/uploads/files/1243100971.pdfIn PDF document text
- http://logiccpacma.com/ckfinder/userfiles/files/zetidomixigiwopu.pdfIn PDF document text
- http://serenetour.com/image/upload/File/leguwidawodizif.pdfIn PDF document text
- https://billard-hauri.ch/userfiles/file/nixusosurerisujemerasafow.pdfIn PDF document text
- http://rcp-ranstadt.us/files/venagexipitoxoniwet.pdfIn PDF document text
- http://stavebnevyrobky.sk/www/upload/files/pulafevaweliko.pdfIn PDF document text
- https://nulifeus.com/~nulife/userfiles/file/45048016248.pdfIn PDF document text
- http://klasykarozrywki.pl/public/images/fck/file/58889055884.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1612eae90df460---kibepaponaledutu.pdfIn PDF document text
- http://jshanwoo.com/ckfinder/userfiles/files/16150031063.pdfIn PDF document text
- http://ukrfirework.com/images/file/vuguxiluwejurisapidizevug.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130fe222a458---71634647387.pdfIn PDF document text
- http://fantacyhandicraft.com/userfiles/file/jetokepidikubogafeme.pdfIn PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/980df274c95fcd5664e77ed80b8c947c/kunizikoxunurabami.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_off00010ffd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FFD | 10400 bytes |
SHA-256: 160f7747e37a4bf9037040b6d90186b3d843b906d2cdf033a957f2fdd5ddb09e |
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font_01_sfnt_off00012783.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12783 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013f95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F95 | 17468 bytes |
SHA-256: bec065a0b52822297cdcaf3c88a75d4eef6d6bef7fde49a152cb4487e3b6cec9 |
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