MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by both ML classification and ClamAV, with a specific detection name indicating it's a phishing trojan. The heuristics reveal it functions as a link farm, containing numerous external links to other PDF files hosted on disposable domains. This suggests a multi-stage attack where the initial PDF serves as a lure to redirect users to potentially malicious content or further phishing attempts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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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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=bacterium+plural+form PDF link annotation
- https://gixejeti.weebly.com/uploads/1/3/4/3/134326891/8df680eacdc8990.pdfIn PDF document text
- https://saxijafuduzota.weebly.com/uploads/1/3/4/6/134692269/jadogixujanixal.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368250/normal_5ffa69d18a355.pdfIn PDF document text
- https://texitanoz.weebly.com/uploads/1/3/0/7/130739996/8634440.pdfIn PDF document text
- https://fezojeme.weebly.com/uploads/1/3/4/6/134614855/5008011.pdfIn PDF document text
- https://static.s123-cdn-static-d.com/uploads/4425759/normal_60b5276a345c5.pdfIn PDF document text
- https://kutufesivom.weebly.com/uploads/1/3/4/6/134632784/jesafo.pdfIn PDF document text
- https://tamalokumolegi.weebly.com/uploads/1/3/4/6/134656593/nipudapakev_lifalapodum.pdfIn PDF document text
- https://sinevojixataxer.weebly.com/uploads/1/3/4/1/134131740/4511584.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374360/normal_5ff62ba0817c6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387931/normal_603a06ff2369b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459320/normal_5fca4a92bd806.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403119/normal_5fc72189b408c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403531/normal_601ff09114f69.pdfIn PDF document text
- https://metaxifal.weebly.com/uploads/1/3/4/3/134311681/8532646.pdfIn PDF document text
- https://bebekibuxa.weebly.com/uploads/1/3/5/9/135993907/mikeg_notuz_jigipuvugusij.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/07d16da8-174c-4ec9-907a-c2b07e5325ee/xiwirelimofe.pdfIn PDF document text
- http://pefumugat.pbworks.com/f/amsco_apush_answer_key_2015.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5660cd69-900c-48cd-b46e-90fd41ee831f/download_skyblock_for_minecraft_1._16._26.pdfIn PDF document text
- http://zowonixepor.pbworks.com/f/40147096061.pdfIn PDF document text
- http://gezebal.pbworks.com/f/mapamundi_meridianos_y_paralelos_con_nombres.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/32972539-bc18-40b1-ad04-0eda83cb84b3/25023595907.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e626.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE626 | 5032 bytes |
SHA-256: 8ed13348ab2bf80f2e0984b377d0d3737282be0c4b89b6f008b202f85cf0d1cf |
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font_01_sfnt_off0000f732.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF732 | 14416 bytes |
SHA-256: ef2fb6d6ac068a7a73767c7adb6465cae3229d045d5a52297f12d97a5ea2cec8 |
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