MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a link farm and an SEO redirector, specifically pointing to 'https://maypoin.ru/award?keyword=cumulative+frequency+worksheet+pdf', which is designed to lure users into downloading further content. The presence of numerous external links suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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://maypoin.ru/award?keyword=cumulative+frequency+worksheet+pdf PDF link annotation
- http://alluniversity.fun/denon_dht-s514_soundbar_with_wireless_subwoofery8fdg.pdfIn PDF document text
- http://otshelnik.net/767774814me6xu.pdfIn PDF document text
- http://leopards.space/jacquard_cyanotype_pretreated_fabric_sheets7e4x7.pdfIn PDF document text
- http://bumaga.bz/80697382783v9ade.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://3d5b2cfc-74f5-4c02-8466-0d369b02955c.filesusr.com/ugd/69b86f_2f630a470d8b4f6a9a0e19c71f9ace05.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5d3093ae-c140-47d2-b5ad-541cbd6a6d9e/vetuxabiruj.pdfIn PDF document text
- https://s3.amazonaws.com/fajonubinomeder/bairagi_comedy_3gp.pdfIn PDF document text
- https://s3.amazonaws.com/nefunupu/bread_machine_recipes.pdfIn PDF document text
- https://s3.amazonaws.com/megodipewukitoj/45991187598.pdfIn PDF document text
- https://s3.amazonaws.com/vufuzewasi/ek_chumma_song_housefull_4_wapwon.pdfIn PDF document text
- https://s3.amazonaws.com/remuv/rometidufonuje.pdfIn PDF document text
- https://s3.amazonaws.com/vetamedisoz/interview_questions_and_answers_for_office_assistant.pdfIn PDF document text
- https://538d8494-0c7d-401a-b890-0485f6bc7bca.filesusr.com/ugd/29c71c_adedac226e6743718b1bf23514f4a26e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vuraradaso/afrosai-_e_performance_audit_reports.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0fbf9944-d509-45af-8a4e-371d37b0728c/authentic_happiness_seligman.pdfIn PDF document text
- https://s3.amazonaws.com/vukumesoj/kezugalajifomosorisogojoj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/461df050-486e-4d26-93ee-778408780611/9593916727.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DC | 6584 bytes |
SHA-256: 505468feeb41328abee61a9fd12944a9fc4558b5d77bf48c0207bb90d7a39001 |
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font_01_sfnt_off0000f339.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF339 | 5744 bytes |
SHA-256: 855584a387cf2891b54985bb544277b6747a0ecccc3ecc4d004607c37008ea51 |
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font_02_sfnt_off000106b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106B5 | 11384 bytes |
SHA-256: 5d1d6849ba61597bd22cc86aa15bbfeba11715e34744d5a4ee1f2f5bd9e300c8 |
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font_03_sfnt_off00012da3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DA3 | 16148 bytes |
SHA-256: e7e500e9a025808c17d208be9994784ebb1bcc804fe072e89bcb0c8977bc56f5 |
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