MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. A heuristic identified an image lure linking to an SEO redirector, specifically `https://baarspo.ru/award?keyword=bharat+acharya+microprocessor+book+pdf`, which is consistent with phishing attempts disguised as free downloads. No scripts were extracted, but the PDF structure and URL suggest a phishing attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9814
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://baarspo.ru/award?keyword=bharat+acharya+microprocessor+book+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4408343/normal_601b0b7ad950a.pdfIn PDF document text
- https://gixebodaloru.weebly.com/uploads/1/3/1/3/131379223/zozibo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368219/normal_6014d6451fe33.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370284/normal_600038b36a81a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365576/normal_6001e7695d37b.pdfIn PDF document text
- https://xuvelufuxilo.weebly.com/uploads/1/3/5/3/135387868/jomatezaw.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489848/normal_603442ab5e874.pdfIn PDF document text
- https://mogoribomos.weebly.com/uploads/1/3/4/2/134266362/zufesan.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4468871/normal_5fee50baabf0c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4377109/normal_5ff30834279e7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488316/normal_601e3596ea2cb.pdfIn PDF document text
- https://kavibugu.weebly.com/uploads/1/3/4/9/134902942/2708047.pdfIn PDF document text
- https://wafanipo.weebly.com/uploads/1/3/2/6/132695839/73e3ba684e96.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/2e929a6f-8c2b-4cf0-8f3a-919c5c8c90be/jikenemazeb.pdfIn PDF document text
- https://88211235-bf86-4d40-a6ec-a052db2f682e.filesusr.com/ugd/94e5ef_6833332f81d34ae0bf753961c800961c.pdf?index=trueIn PDF document text
- https://6ce95562-7558-49ee-a7b0-b3003db3b0e9.filesusr.com/ugd/d13e1f_88e66247973e4f98b0b5014fe5103463.pdf?index=trueIn PDF document text
- https://1a6defe7-92a0-4357-8a70-d3bce85d30c9.filesusr.com/ugd/385065_828ae59bc27b45c2ab5938eb914de73c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8e4c2d23-426b-43fe-9b76-4f9d84e570e5/totugavevisok.pdfIn PDF document text
- https://5c09c65f-4728-49e3-9562-8692e696fc4f.filesusr.com/ugd/32acb1_8eb7c4a99bfd42b68c0516d6bcd149e4.pdf?index=trueIn PDF document text
- https://df6a9abb-74f3-47e1-b359-fe6d1019da36.filesusr.com/ugd/7921d2_9479617b36cc45ebbfe211a8753eff1e.pdf?index=trueIn PDF document text
- https://52f9d6e5-2fd5-4906-a030-4d12f703b62a.filesusr.com/ugd/297ecd_a14e644c00b3476eb0d71e1fdd2283b9.pdf?index=trueIn PDF document text
- https://4228e3e8-6e56-436b-9c2a-5710a6c3a216.filesusr.com/ugd/e32dc8_e1d8ca1180b94469aac11c57c7c1ddac.pdf?index=trueIn PDF document text
- https://9e77dbea-16d6-438e-9859-4a68c5388828.filesusr.com/ugd/3225da_ed6efb59be9c4b26b08d7773a810a677.pdf?index=trueIn PDF document text
- https://fb4bdcd3-28a3-4206-a6c3-fb267f511c23.filesusr.com/ugd/0ad562_b267150cdad6480faa83715a10bd6848.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9fbd3e2e-31b8-4ac3-851f-514b3f005402/bowenamoru.pdfIn PDF document text
- https://63b1f34b-4847-450f-8d9a-4788d10e1cf5.filesusr.com/ugd/451a43_ddff6f261de7472d9d52700feba92038.pdf?index=trueIn 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://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_off0004024b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4024B | 5720 bytes |
SHA-256: 71b0de972fa5c5a1a95347377baa35bd91bbdc8b6081ce1c01a6bf17a91f807a |
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font_01_sfnt_off0004159a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4159A | 14284 bytes |
SHA-256: 2030a4f7710e6e6bf23af88996a2175806941c53e21995569e0c67e0d8e21d2a |
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font_02_sfnt_off0004453e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4453E | 16088 bytes |
SHA-256: c487aa01613208473e3c0b892de3260687b9c0341624d6c76d95d7849508583e |
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