MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs, with a primary one pointing to 'baarspo.ru', likely serving as a lure for users interested in 'Left 4 Dead'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests a tactic to distribute malicious content across multiple disposable domains. No scripts were extracted, but the presence of external links and the nature of the heuristics strongly suggest a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 5
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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 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://baarspo.ru/wix?keyword=left+4+dead+expert+guide PDF link annotation
- https://static.s123-cdn-static.com/uploads/4490523/normal_5ff660b428e77.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374379/normal_6001067bb5b7c.pdfIn PDF document text
- https://cdn.sqhk.co/gepeduvo/Sjghjhd/yes_that_dress_mod_apk_android_1.pdfIn PDF document text
- http://nosinoski.shop/what_episode_does_kaneki_kill_jasonr7jsp.pdfIn PDF document text
- https://gimepokik.weebly.com/uploads/1/3/1/6/131636980/2961882.pdfIn PDF document text
- https://bukajovogasis.weebly.com/uploads/1/3/4/3/134340533/gisek.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376610/normal_5ff7b65cf1ab0.pdfIn PDF document text
- http://temilops.xyz/iso_27001_controls_checklist_excelsmm3t.pdfIn PDF document text
- http://azules.ru/tusukawevuwusafutefoyf53c.pdfIn PDF document text
- https://seligelota.weebly.com/uploads/1/3/1/4/131453084/texizevimebufe-bavove-zaruwowujifug.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366676/normal_6013c53c186f2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451028/normal_600ffdf319db8.pdfIn PDF document text
- https://cdn.sqhk.co/sabiwizi/cgcgc7Q/formula_1_2020_game_tracks.pdfIn PDF document text
- http://hydrofthol.space/20909660577e7juq.pdfIn PDF document text
- https://cdn.sqhk.co/mitukutowum/iWvpihG/advance_auto_parts_in_caro_michigan.pdfIn PDF document text
- http://wowitaly.space/imaginarium_metro_line_train_table_assembly_instructionsjsc0i.pdfIn PDF document text
- http://tovelksa.website/american_truck_simulator_1._34ea69f.pdfIn PDF document text
- http://websecurer.tech/especies_de_espacios_george_perec_dexyhqw.pdfIn PDF document text
- http://genusadnlo.space/838102281001kcnp.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/viboxikuz/20929324411.pdfIn PDF document text
- https://s3.amazonaws.com/gorajikunobixi/andyroid_free_for_windows_10.pdfIn PDF document text
- https://s3.amazonaws.com/remavuj/ost_tweening_webtoon.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_off0001107c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1107C | 5096 bytes |
SHA-256: 72e02d4c13c245c6ad4155891907c694f9287ac1b502b64034b4c785cb3b8a18 |
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font_01_sfnt_off000121f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121F9 | 10412 bytes |
SHA-256: cb98a7e28cc3ef98990870aa9087f34c6d731416d440d5effd35a123bd1acf57 |
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