MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'pelibifir.ru' suggests an attempt to redirect the user to a malicious site. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the idea that the PDF is part of a scheme to distribute malicious content via disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=are+babies+fussy+during+wonder+weeks PDF link annotation
- https://static.s123-cdn-static.com/uploads/4469136/normal_6003c694656d9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426422/normal_5ff3fed873941.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461767/normal_5ff86c9da1f81.pdfIn PDF document text
- http://vobafoselalulor.mypressonline.com/fusionner_les_fichiers_en_ligne.pdfIn PDF document text
- http://nitiwopororotef.mypressonline.com/jurnal_internasional_bblr.pdfIn PDF document text
- https://cdn.sqhk.co/begokaxawip/jhAihid/stickman_revenge_2_hack_apk.pdfIn PDF document text
- http://vufajed.getenjoyment.net/5174922499.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426550/normal_604705c101f76.pdfIn PDF document text
- https://cdn.sqhk.co/pidenali/RPagghb/50920006711.pdfIn PDF document text
- http://jalosus.mygamesonline.org/vocabulary_for_ielts_academic_writing_task_1.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://sefowolo.atwebpages.com/98422517065.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/144adf0a-1a0a-4b3b-9fdc-f10a03401356/how_to_reset_cobra_security_system.pdfIn PDF document text
- https://93bb5028-8b17-4c47-8ab9-f46a024b0e86.filesusr.com/ugd/041612_ea2f6064b9d24a25931a54bae8f8e027.pdf?index=trueIn PDF document text
- https://4d75d3c9-3a4d-4df6-84ab-e48b83d723e5.filesusr.com/ugd/cdb50c_316e4c2b2cf747f7adb9e8e578f9a67b.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xixonu/86551792403.pdfIn PDF document text
- https://s3.amazonaws.com/jadere/google_java_checkstyle.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d5faf370-c894-458d-ba52-6f17f098955e/36019816807.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7f479e23-fcd4-4d6d-8cae-91f865f04d2d/zikanuj.pdfIn PDF document text
- https://s3.amazonaws.com/zupenafud/90490996143.pdfIn PDF document text
- https://a867a740-3546-49c9-bb92-c76f735cad7e.filesusr.com/ugd/c312ff_869ef53b9e524388999c906f031d9a1b.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gumegulaxi/azonix_font_free.pdfIn PDF document text
- https://s3.amazonaws.com/gapivegek/can_you_use_coconut_sugar_to_make_simple_syrup.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_off0000ff34.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF34 | 5432 bytes |
SHA-256: 8cae6bde70bad98b4f52914a529570802249cb5497a7bcd5385c5e684e4b94b7 |
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font_01_sfnt_off000111d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111D8 | 12688 bytes |
SHA-256: e0401b59cefe45dcc63e623771ca96baa211021e2118a2518d4e776ca3fd89d0 |
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