MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary malicious URL, 'https://xajibur.ru/123?utm_term=a+certification+exam+guide+pdf', is likely used for phishing or to redirect to malicious content. ClamAV and an ML classifier also flagged this PDF as malicious, indicating a high likelihood of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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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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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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://xajibur.ru/123?utm_term=a+certification+exam+guide+pdf
- https://cdn-cms.f-static.net/uploads/4475565/normal_602a14e3f32b0.pdf
- https://cdn-cms.f-static.net/uploads/4409814/normal_603f0070b036b.pdf
- https://cdn-cms.f-static.net/uploads/4450426/normal_603882fc8f5dd.pdf
- https://cdn-cms.f-static.net/uploads/4444884/normal_606cb974530e4.pdf
- https://mubelumovetofap.weebly.com/uploads/1/3/1/8/131856402/voxuremugebobedi.pdf
- https://cdn-cms.f-static.net/uploads/4379220/normal_6053f03ba852e.pdf
- https://cdn-cms.f-static.net/uploads/4451208/normal_602bb5d4b8c69.pdf
- https://static.s123-cdn-static.com/uploads/4479435/normal_5ffc4f9653713.pdf
- https://static.s123-cdn-static.com/uploads/4409606/normal_5ffe2057d1ec2.pdf
- https://mutodebubopuvom.weebly.com/uploads/1/3/4/3/134373551/17f96.pdf
- https://cdn-cms.f-static.net/uploads/4459324/normal_605f2e781f37d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/61c62c46-e1c9-4401-86e0-6ca3dd510e9e/kufalagujijusi.pdf
- https://uploads.strikinglycdn.com/files/3f6dc094-192a-42a6-9107-4fafbe4bbf6f/yksek_lisans_tez_savunma_sunumu_rnekleri_powerpoint.pdf
- https://uploads.strikinglycdn.com/files/6523252c-b782-49e2-a10c-90a07ffc9624/bivaporima.pdf
- https://uploads.strikinglycdn.com/files/f4d21d8b-6ad5-468b-87e0-52f0f3c8b437/popcaan_friends_like_these_lyrics_download.pdf
- https://uploads.strikinglycdn.com/files/9ed78bd7-85b2-46a7-bc2e-43db87fe4791/baby_goats_for_sale_colorado.pdf
- https://uploads.strikinglycdn.com/files/35f4e062-79ce-4bd5-97b7-f18e557a3056/msi_gtx_970_gaming_4g_weight.pdf
- https://uploads.strikinglycdn.com/files/10cdf241-7e44-4892-86b6-99aa181bc3c6/how_to_use_kindle_lending_library.pdf
- https://uploads.strikinglycdn.com/files/cb73fdfa-8b08-40a8-a9e1-8fe3c6fe716d/wwe_2k17_caw_formulas.pdf
- https://uploads.strikinglycdn.com/files/6beba235-d26a-4bb6-b0dc-e20444b4aee7/associated_press_ap_style_guide.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f11c.bind14e7bcd2d0b0f89263a741d980423439bfaaf69b9f36b20198628b1b5d807e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF11C | 5320 bytes |
font_01_sfnt_off0001032b.binc00e990b6082642558df8edc1bd18f60b6cca83eaeef0918e2fc8cf65ee5817f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1032B | 10916 bytes |
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