MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 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://catamma.ru/pbw?utm_term=nomenclature+worksheet+2+simple+binary+ionic+compounds+answer+key PDF link annotation
- https://cdn-cms.f-static.net/uploads/4425224/normal_6053150a7a764.pdfIn PDF document text
- https://katexiru.weebly.com/uploads/1/3/4/5/134576370/zemabovanefafog.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366622/normal_6048a25fb842a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415745/normal_606921ec964c5.pdfIn PDF document text
- https://vojitimene.weebly.com/uploads/1/3/4/5/134596684/8551c8ae638.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387586/normal_603e3690ce39a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465127/normal_606d958f991dc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383925/normal_5ffb76c1983a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368999/normal_6032d9c753a24.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4454971/normal_6004d3093ff79.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421215/normal_602631527aa74.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4384036/normal_60091f48e5b9d.pdfIn PDF document text
- https://gokepitamewema.weebly.com/uploads/1/3/5/3/135325242/kitusepebebefufobuf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454678/normal_60644d32e9810.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490524/normal_60692daa54cb7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/b61269c9-5349-4727-94bd-b07b5661fff0/a_touch_of_class_hair_salon_point_pleasant_nj.pdfIn PDF document text
- http://jutifakukap.pbworks.com/w/file/fetch/144510114/wupowavifuzisedupomi.pdfIn PDF document text
- http://jotoxipigi.pbworks.com/f/types_of_lens_used_for_correcting_eye_defects.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a4aaa15e-ed17-4119-80ea-783840a97162/buziguvoxusomese.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/99ba0219-dd03-483b-9423-b7046a5785a9/86964670576.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/da7d215a-abbb-4a48-a640-ef39fa31620f/dynamic_programming_and_optimal_control_vol._ii_dimitri_bertsekas.pdfIn PDF document text
- http://tusoxefum.pbworks.com/w/file/fetch/144791289/98257699185.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0d65649a-3e50-4f19-a5f8-2cfc5cc205d9/19375206288.pdfIn PDF document text
- http://welomobo.pbworks.com/f/diablo_2_merc_guide_1.13.pdfIn PDF document text
- http://demopefo.pbworks.com/f/vice_city_exe.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_off0000d8aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8AA | 5812 bytes |
SHA-256: ba51b0c7661e93af85015b41946bafacf1d1e5a522b42c492f7e5d1ab6b868a7 |
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font_01_sfnt_off0000ec5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC5D | 10092 bytes |
SHA-256: 3c837af9417a3677790661bf6ac5932d84e87a12791e1bf015d31b146f720578 |
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