MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to potentially malicious sites. The document body, though heavily obfuscated, contains keywords related to thesis archiving and mentions wkhtmltopdf, hinting at a lure to disguise the malicious intent. No scripts were extracted, but the primary attack vector appears to be the redirection to external URLs.
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://synerhu.ru/pbw?utm_term=thesis+archiving+management+system+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4476268/normal_602b5b0dcfd72.pdfIn PDF document text
- https://wesamirovajep.weebly.com/uploads/1/3/5/3/135383051/pabijuxegijesu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409604/normal_60296443ba898.pdfIn PDF document text
- https://xasigusuvenazuj.weebly.com/uploads/1/3/0/7/130739755/b7e7ed4a6a0.pdfIn PDF document text
- https://pubigomusukuma.weebly.com/uploads/1/3/4/5/134511275/sijojo.pdfIn PDF document text
- https://kanabebivuze.weebly.com/uploads/1/3/4/4/134457147/fozam.pdfIn PDF document text
- https://faxipanonuk.weebly.com/uploads/1/3/4/3/134352952/2717090.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452171/normal_604e3409560da.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389365/normal_6023d9da45f26.pdfIn PDF document text
- https://daxoruliwoj.weebly.com/uploads/1/3/4/5/134585145/7669984.pdfIn PDF document text
- https://fukoxifixe.weebly.com/uploads/1/3/4/4/134460993/b18d549473801e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450630/normal_5fc978ea0e58c.pdfIn PDF document text
- https://zesujejiviwi.weebly.com/uploads/1/3/4/7/134729849/tavixori.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403537/normal_5ff8bb21dfe34.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368469/normal_5fd32c133602b.pdfIn PDF document text
- https://fivefijoxiwu.weebly.com/uploads/1/3/1/4/131453543/99865e0.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/f4c7c599-725d-41aa-b2c7-d7f1989afa85/attack_on_titan_game_unblocked_at_school.pdfIn PDF document text
- http://vibasuvezuz.pbworks.com/w/file/fetch/144493332/free_download_mp3_koes_plus_kembali_ke_jakarta.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6fb1d527-10cb-4616-a659-4b362fce034a/hajj_2021_guidelines_in_hindi.pdfIn PDF document text
- http://redejok.pbworks.com/f/ms_c_class_pipe_thickness.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4cca78a0-8135-4f6e-8e56-eedc4f6a0f4b/24373090639.pdfIn PDF document text
- http://siwuromo.pbworks.com/w/file/fetch/144424731/61667316542.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_off0000e68b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE68B | 5648 bytes |
SHA-256: 9f3c1af40be360658fa489d3455b6758f091732f9f4f2fa969498e9f3ecce18f |
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font_01_sfnt_off0000f9a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9A3 | 9936 bytes |
SHA-256: f1925178711c8ff6c814b7e0cb89ff2459181172f4d0c7726fe88652a2053bbe |
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