MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links, with a critical heuristic identifying it as a link farm. The primary malicious URL, 'https://pelibifir.ru/strik?utm_term=study+guide+questions+the+crucible+act+1', suggests a phishing or malware distribution attempt disguised as a study guide. The ClamAV detection and ML classifier further support its malicious nature, indicating it's a Pdf.Phishing.Trojan.
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://pelibifir.ru/strik?utm_term=study+guide+questions+the+crucible+act+1
- https://zutosexumapa.weebly.com/uploads/1/3/1/6/131606298/ginarebadon_sekefinokelo_vibigeduteruse.pdf
- https://zadobixif.weebly.com/uploads/1/3/1/4/131437920/pezibag.pdf
- https://bejarewir.weebly.com/uploads/1/3/5/3/135329653/7511912.pdf
- https://buxutagugumazas.weebly.com/uploads/1/3/4/0/134095839/lodozuf-riganuwekujofaw.pdf
- https://putesoborufo.weebly.com/uploads/1/3/0/8/130814126/8cadebdd2bf23b2.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/gofiguj/widenewadewap.pdf
- https://uploads.strikinglycdn.com/files/f2208614-1ffd-4c89-b97e-f65d05ac7831/masterbuilt_44_propane_smoker_parts.pdf
- https://uploads.strikinglycdn.com/files/9dd9523f-7fdb-4b7f-8bdb-1d164ca6365d/gevokeduzim.pdf
- https://s3.amazonaws.com/zonebon/broil_cookie_sheet.pdf
- https://uploads.strikinglycdn.com/files/88d931ba-05c8-4e18-9082-656f20001312/what_kind_of_memory_card_does_ps_vita_use.pdf
- https://s3.amazonaws.com/nawuvud/697840697.pdf
- https://s3.amazonaws.com/napoledunadigo/define_listless_in_nursing.pdf
- https://uploads.strikinglycdn.com/files/dcaafe27-91ac-4e97-8318-ce3c5b20bf6d/14892252698.pdf
- https://uploads.strikinglycdn.com/files/ed45c7ce-079d-447b-b338-1cf1ef1e68e5/84116250217.pdf
- https://uploads.strikinglycdn.com/files/07d0ef7a-c633-4eec-b7ea-7f08a90cb9d1/pretty_little_liars_season_1_episode_16_bg_subs.pdf
- https://s3.amazonaws.com/pevuwarobuvowa/wudonolixezajibekewamet.pdf
- https://uploads.strikinglycdn.com/files/12c597dd-29e1-4b37-a692-8ab505c9c27b/theory_of_relativity_time.pdf
- https://uploads.strikinglycdn.com/files/6e6936ab-b57c-40e7-a371-8791688e196c/don_juan_summary_shmoop.pdf
- https://uploads.strikinglycdn.com/files/ea9754b5-aac0-48e6-8532-547c60865e5e/fun_persuasive_speech_topics_for_college_students.pdf
- https://uploads.strikinglycdn.com/files/4ae5964d-4285-441a-94df-cf647ac6a6a7/vugame.pdf
- https://uploads.strikinglycdn.com/files/31f13feb-0e24-4575-a4c6-cfafeeabc6c5/most_interesting_books_to_read_reddit.pdf
- https://uploads.strikinglycdn.com/files/1e9a1578-63e6-4195-840b-5f7b6cd6d338/gaporitezedoliledijok.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_off0000faa7.bin0ffebf079ed33058594a4a8d23cb2600fc466ed668c05cdcfd0fe8e8f442a973 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAA7 | 5724 bytes |
font_01_sfnt_off00010e21.bin0fabdb850680061e0dbd0cd33c66fb93384050efd916d914df75052b0b0a120a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E21 | 10228 bytes |
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