MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://garglob.ru/uplcv?utm_term=sanskrit+book+class+10th PDF link annotation
- https://geneticapanama.com/userfiles/file/57255074406.pdfIn PDF document text
- https://acrgroup.nl/userfiles/file/22311201509.pdfIn PDF document text
- http://greer2001.com/clients/e/ea/ea56749d84c1a2d7db36d2c51c833a37/File/57564514194.pdfIn PDF document text
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/7s13hm563ano2kb0pnav4npp8b/jiminizageba.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/db0cbceb97724705241acc9930b5170d/48321380569.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/c2abccefb6b4a461410a1f724831bae8/likoxutuk.pdfIn PDF document text
- http://vtaky.sk/media/file/63801707474.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757bebe8fe3---99804027824.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/69758e18b86577191ddb093359e57bd6/56621514890.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160c5a6cb54a5e---93145699388.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/gelakijole.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608bf1cdbe359---kafojukivok.pdfIn PDF document text
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/ap135e3iened3hqug64erjjajp/45497211061.pdfIn PDF document text
- http://findmealocalpainter.com/insurazon/admin/userfiles/file/41445421569.pdfIn PDF document text
- https://hgb.se/filer/file/86910718017.pdfIn PDF document text
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe50153ae4---xudabisogaxezoxiwiz.pdfIn PDF document text
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/91ceeecc0073477a46142a53adffe798/lemilipadatemixetem.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn 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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cfbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFBD | 5388 bytes |
SHA-256: 5d5a58a45dafc2e245c60fca208ec80f67cb5145e3582b701c60a68dd25f0f76 |
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font_01_sfnt_off0000e20b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE20B | 3720 bytes |
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281 |
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font_02_sfnt_off0000ed6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED6F | 11340 bytes |
SHA-256: 09c23d736988cdc3721e87713ad5aba2408fb51a8df7e0b98387070252833d04 |
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font_03_sfnt_off00011432.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11432 | 7320 bytes |
SHA-256: f7dac5f061d6051018922152869554c454171150429fa6eff5c492a6201dd5cd |
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