MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a significant number pointing to what appears to be a link farm designed to generate SEO traffic. One heuristic specifically identifies a 'PDF_SEO_LINK_FARM' with 30 external links, including one to 'https://s3.amazonaws.com/tobaziw/kubalixi.pdf'. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery through these links. No scripts were extracted, but the PDF structure itself is used to facilitate the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
Heuristics 5
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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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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://bologen.ru/award?keyword=english+russian+law+dictionary+pdf PDF link annotation
- https://gakurajoduradi.weebly.com/uploads/1/3/4/1/134131237/gezarof.pdfIn PDF document text
- https://nudatisuwirok.weebly.com/uploads/1/3/1/3/131384101/d8da8.pdfIn PDF document text
- http://cesaregaspari.com/is_a_guardian_ad_litem_an_attorneysc9ps.pdfIn PDF document text
- http://bcpreactiva-enlinea.com/voxitimagelipiuhj85.pdfIn PDF document text
- https://kudaxemukuwofi.weebly.com/uploads/1/3/4/6/134691428/dodevep.pdfIn PDF document text
- https://bifekanivixu.weebly.com/uploads/1/3/1/4/131408854/gufiwopexutojof.pdfIn PDF document text
- http://natfreshik.fun/saeco_talea_giro_plus_for_sale5r9hw.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://s3.amazonaws.com/tobaziw/kubalixi.pdfIn PDF document text
- https://c0b8f06b-4e98-4d3d-89ef-2f08caba629a.filesusr.com/ugd/0c8cc8_56aca26baab4448e912bb67570fd62d3.pdf?index=trueIn PDF document text
- https://1b3e2d6a-0348-4772-9bb2-16e56a761455.filesusr.com/ugd/7bcf02_b4f15d36dc9f424e83e189575fe6e642.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/votubukaxogilix/paderexerare.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e53338ff-abc6-4bab-97a7-b0612a469340/what_setting_should_i_put_my_mini_fridge_on.pdfIn PDF document text
- https://s3.amazonaws.com/wetevali/58591958517.pdfIn PDF document text
- https://s3.amazonaws.com/vavebufevodutob/goditen.pdfIn PDF document text
- https://s3.amazonaws.com/xirixepo/dolphin_browser_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d49edbaa-7c4c-4649-9127-78f2ac368808/47407290854.pdfIn PDF document text
- https://37e0f79d-b0c1-4727-b76d-5b759c81288f.filesusr.com/ugd/9c66ff_17c03e5eb1ad4abfbf8afe955ae038a1.pdf?index=trueIn PDF document text
- https://1ac5d900-0c69-4f12-8b1d-4e209472b8d2.filesusr.com/ugd/828753_a1e7a941d7eb40ccb7b20d5a136fa656.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/temujonuwu/ben_ten_omnitrix_game_free.pdfIn PDF document text
- https://s3.amazonaws.com/fovezewi/holt_algebra_1_workbook_answers.pdfIn PDF document text
- https://s3.amazonaws.com/zidenigad/xexafusixotinosixuponuweg.pdfIn PDF document text
- https://s3.amazonaws.com/resabomibogodaw/diwawa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7b8c78c4-f4d0-459a-8587-a196412fffa8/clinicians_pocket_reference.pdfIn PDF document text
- https://s3.amazonaws.com/fivebo/54988380290.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://scripts.sil.org/OFLIn PDF document text
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000df6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF6F | 12516 bytes |
SHA-256: 20c3fcca34647b20770daf1760d1723b4c74f49d1a63689fb0cdb87009141a13 |
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font_01_sfnt_off000107f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107F9 | 5568 bytes |
SHA-256: b029561f71d54fd6f54f34666c9ad04d1080a9f74b8ed955f733b6283ac756ef |
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font_02_sfnt_off00011af7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AF7 | 7492 bytes |
SHA-256: 94f07b26da985959ee462a83d696ae2cec3262a3f0335c03f1e3483ec739a357 |
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font_03_sfnt_off00012f9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F9D | 15332 bytes |
SHA-256: c3ee24868bdb56508256c5997ee0ce644b3e12adfe6bfe73bb2dfe373842130d |
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