MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic indicate an attempt to redirect users to potentially malicious or deceptive content. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://bologen.ru/award?keyword=ansioliticos+pdf+unam PDF link annotation
- https://cdn.sqhk.co/lilavokolet/idhgSje/odd_man_rush_movie_where_to_watch.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377371/normal_6020671081e5e.pdfIn PDF document text
- https://cdn.sqhk.co/nivunufozub/egizhcf/innocent_warrior_lyrics.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4412593/normal_5ffcf5c098211.pdfIn PDF document text
- https://cdn.sqhk.co/gabixeme/hCx7eib/73978843739.pdfIn PDF document text
- https://cdn.sqhk.co/tiwefuxab/ZhepWmE/93828721370.pdfIn PDF document text
- https://cdn.sqhk.co/letareximo/fhaB51c/61547963210.pdfIn PDF document text
- https://cdn.sqhk.co/zijigemeworu/ZKiehha/free_video_calling_websites_without_registration.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4425484/normal_5ff285d239589.pdfIn PDF document text
- https://cdn.sqhk.co/gabisolovima/he8ljfB/earn_to_die_2012_unblocked_4_life.pdfIn PDF document text
- https://cdn.sqhk.co/leguzufaju/gimlJgj/horizon_new_jersey_health_address.pdfIn PDF document text
- https://cdn.sqhk.co/sarimotel/9jfjh8o/44320934165.pdfIn PDF document text
- https://cdn.sqhk.co/remowiwa/heLPhhc/best_japanese_sword_maker_in_the_world.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/luborinizu/2807731766.pdfIn PDF document text
- https://43fe4710-460a-4ad3-90dc-2dd795c51528.filesusr.com/ugd/a32c20_5144940c63224e75ae61fa8534b8cd66.pdf?index=trueIn PDF document text
- https://4c2674ec-1430-4cec-a455-d6a35d10586e.filesusr.com/ugd/38955b_12d5b7f4a4ab4493a678d02882f95de3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wiremeresegikon/beelzebub_anime_english_sub.pdfIn PDF document text
- https://a529afa0-707c-494d-9cee-e9df2360aa12.filesusr.com/ugd/a6e48a_7da273572d8947d8aa8030c8906ade9e.pdf?index=trueIn PDF document text
- https://438e95ed-c264-4db5-88d3-1a9ca8b91b86.filesusr.com/ugd/733c1f_7154dfc9329c4291b0c1129eba0e440c.pdf?index=trueIn PDF document text
- https://33fe1336-4051-433c-b691-b763732126dd.filesusr.com/ugd/6c8f37_7d3614ad50c143e9b679b51336f6f75f.pdf?index=trueIn 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_off0000fb6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB6A | 5196 bytes |
SHA-256: 1dbc69e311b6876622cf6f78aa19475b6207cddc5efb63de8ec4d9373cbfa442 |
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font_01_sfnt_off00010d0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D0D | 10460 bytes |
SHA-256: 25fe9282c5bdbbb960a83259d6f541d5d9cb6678f5ab86652fb0d96d6af50e18 |
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