MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is classified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to various URLs that are likely part of a phishing or malware distribution scheme, masquerading as free software downloads. The presence of multiple compromised CMS upload links further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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=iphone+icloud+unlock+software+free+download+windows+7 PDF link annotation
- http://ligonfamilyreunion.org/clients/9/9a/9a44987365eba454cd9b2deda39aa7c0/File/43002215237.pdfIn PDF document text
- https://feltshoe.com/userfiles/file/7905564335.pdfIn PDF document text
- http://soleilboo.com/images/uploads/files/46364401390.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608706072f974---degatejaribatupavokoris.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/c9d6cd59f0dadedc0aa9033f21f544fa/mutovonavubefo.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a0e30ce8e25ba25f76f3bc1b2a7b2e65/gimopedutabejafu.pdfIn PDF document text
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608937d5d04a5---xajekexogaronilumojafupeg.pdfIn PDF document text
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/2c8a9ec1e28819f7ed08a62cdb86a9c2/55159373844.pdfIn PDF document text
- http://cgl.lu/userfiles/files/memewunuxugoxe.pdfIn PDF document text
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/0f4ae4a4b2eed10df7ab01eb097f1b96/95476350327.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bdda315dba4---novitokusasajamigogikafe.pdfIn PDF document text
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/94d36bbe4d726a5b3e1b7b0b45fd2f6a/29133116541.pdfIn PDF document text
- https://jjcfurnituremaker.com/userfiles/files/34754693793.pdfIn PDF document text
- http://www.scsi.coop/wp-content/plugins/super-forms/uploads/php/files/6998a18eacd394c0e5f3cb65a1292b1d/55246048241.pdfIn PDF document text
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5892e3b4a---vutejabetugok.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/dc06bfd52fe08685c670227492755536/48573747506.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e334.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE334 | 5416 bytes |
SHA-256: 767791252547c70358ddcc9c91882cf1de3453392fa1c8fbfd0b4a57fc9f6a7d |
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font_01_sfnt_off0000f5b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5B7 | 10632 bytes |
SHA-256: 63742148af9e26e5bd44ae2d2eb7ef8912f937485f0134e6dac6ee59dd97b9b9 |
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