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 an embedded URI pointing to a suspicious domain, pelibifir.ru, which is likely used to host a phishing page or distribute further malware. The PDF's structure and embedded links suggest it's part of a link farm designed to obscure the final malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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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 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://pelibifir.ru/strik?utm_term=how+to+play+have+yourself+a+merry+little+christmas+on+piano PDF link annotation
- http://forecast.bet/megan_fox_kids_namesgehm9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454562/normal_604b76344d1d5.pdfIn PDF document text
- https://cdn.sqhk.co/kunimanujage/jh1P4F8/jakokukebinopolasupevixi.pdfIn PDF document text
- http://trackengine.host/jilesanakimadudogaxewosazznbc6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464056/normal_5fdba2457b1c8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485580/normal_602d63089615c.pdfIn PDF document text
- https://cdn.sqhk.co/gikunixa/cg6ihN2/kawalavofisures.pdfIn PDF document text
- http://bestrongbyg.com/how_do_i_program_my_spectrum_remote_to_my_element_tvcwwna.pdfIn PDF document text
- http://organicnu.info/rulakimipikupp6m2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393041/normal_60582fa147638.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://50b7e5d6-ab0e-41ff-bbcb-47d024e5c277.filesusr.com/ugd/45d8ab_bce9c0af8f4040cc892b053866eb9132.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/52ae95c7-decf-4a5b-baac-3a0b9e93480e/dosepafedes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/39cd45a6-37fa-413c-8d3a-8dfb12f41a95/can_you_return_open_box_items_to_target.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/edef9bf7-b855-4b38-a0a3-3e2fdf40293a/chi_health_council_bluffs_jobs.pdfIn PDF document text
- https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_d201adb5976d4acbb226ba4e737ae1c7.pdf?index=trueIn PDF document text
- https://aaca6425-83b8-4992-a49d-2ec8a2d61848.filesusr.com/ugd/304e3c_5b1a00861f1e4963ac1f0c90a7e0a8c2.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/14761113-245c-44df-b995-95f13c5da42b/strangers_in_their_own_land_quotes.pdfIn PDF document text
- https://67acb2b6-3e42-4063-a073-371cb527a15d.filesusr.com/ugd/a81d48_3afdc81ba65c4164a8ce77cbdd4b4e42.pdf?index=trueIn PDF document text
- https://f06ae689-34e6-4fd9-b749-a5985747e370.filesusr.com/ugd/4117a9_d67e6f411768449fb98b3cd6b7b768fa.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f8c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C1 | 5352 bytes |
SHA-256: e0f22e378612a545bfa1936ea7d695e2afa0f5ea5b267bdd943cd628d99396d9 |
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font_01_sfnt_off00010aed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AED | 11320 bytes |
SHA-256: 59b8a647ea3abf2b5095e932aead7bf49c45daf4f20ae317d3aa89059f5a0b09 |
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font_02_sfnt_off000131a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131A1 | 16120 bytes |
SHA-256: 2cfc97915d250804213c9b0e6ad261e0979cd38371fb36ec9174dea58a153a3e |
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font_03_sfnt_off00014688.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14688 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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