MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links pointing to various domains, many of which are disposable or associated with link farms. This behavior is indicative of SEO manipulation or a phishing campaign designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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://queure.ru/pbw?utm_term=average+students+remarks PDF link annotation
- https://lezojefob.weebly.com/uploads/1/3/5/3/135319065/xonokazinesivu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380699/normal_60257fd393694.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454041/normal_601ca1b4a0ae9.pdfIn PDF document text
- https://kaxitojuwomig.weebly.com/uploads/1/3/5/3/135302818/00a80.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385850/normal_6010f7fb984b7.pdfIn PDF document text
- https://rixolojujosu.weebly.com/uploads/1/3/4/6/134622111/bixufev.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393186/normal_5fded21f1e16e.pdfIn PDF document text
- https://bexukisutiso.weebly.com/uploads/1/3/0/8/130873741/lomidufidax.pdfIn PDF document text
- https://pepadamive.weebly.com/uploads/1/3/4/4/134468065/d9fae26eeb.pdfIn PDF document text
- https://mowavowami.weebly.com/uploads/1/3/4/5/134591552/putigawuderezoti.pdfIn PDF document text
- https://moxidoneke.weebly.com/uploads/1/3/5/9/135993461/81535a0591244eb.pdfIn PDF document text
- https://fupevigojajoma.weebly.com/uploads/1/3/0/7/130738700/5231950.pdfIn PDF document text
- https://jufapagemegugux.weebly.com/uploads/1/3/4/8/134860181/fekodubojina-bukinegadewe-mitix.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://kigemulu.pbworks.com/f/verbs_with_prepositions_speaking_activities.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/da319c4e-510b-4fc3-8d62-2f800ec2371e/how_to_train_your_dragon_series_voices.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9fd97130-c615-48d0-84d6-bca0ec149371/89908770884.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b8928b28-9382-4f58-abb6-62515e909b23/cuantos_milimetros_equivale_a_1_metro.pdfIn PDF document text
- http://zezimin.pbworks.com/f/44031807423.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cba2619a-39f0-49d7-afe6-c6424df888b2/rinebedogo.pdfIn PDF document text
- http://zefuberiwuli.pbworks.com/f/trauma_team_wii_iso.pdfIn PDF document text
- http://niwomif.pbworks.com/f/35305480253.pdfIn PDF document text
- http://luwapoveduvi.pbworks.com/w/file/fetch/144486306/xoxesufupafewivepatimotom.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ce552108-aebf-40d3-8328-d930f062c573/ranitojafugajusa.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_off0000e27c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE27C | 5228 bytes |
SHA-256: 156cbebb2138d391b384f424a662cb8dce02272cfb6f3755da3ede1b66556d94 |
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font_01_sfnt_off0000f438.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF438 | 10260 bytes |
SHA-256: fae0b6781bb407da239692e25057b339ef4b62ff53d337c55fff1b1c57c44627 |
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