MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1534 Steal Session Token
T1056.004 Web Browser
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm and an MFA lure, designed to harvest credentials or session tokens. The embedded URLs point to disposable hosting, further supporting a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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://leonvi.ru/award?keyword=security+controls+evaluation+testing+and+assessment+handbook+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4370528/normal_5fffbb26cc813.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478933/normal_601da0432fcf3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421782/normal_601dc318d2aa4.pdfIn PDF document text
- http://japarof.mywebcommunity.org/sql_server_tutorial_for_beginners_with_examples.pdfIn PDF document text
- http://vesajob.getenjoyment.net/36502158628.pdfIn PDF document text
- http://buvalopexur.mygamesonline.org/29402112397.pdfIn PDF document text
- http://dexuposi.sportsontheweb.net/pomumovom.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451377/normal_5ffac3954317c.pdfIn PDF document text
- http://waranijovuv.sportsontheweb.net/how_to_find_ip_address_in_command_prompt_windows_10.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467043/normal_604461de6a728.pdfIn PDF document text
- https://s3.amazonaws.com/moduxanakuri/migalalikim.pdfIn PDF document text
- https://s3.amazonaws.com/wefadep/xepona.pdfIn PDF document text
- https://s3.amazonaws.com/nufidibodudulad/kejozatoxinovo.pdfIn PDF document text
- http://julapekawej.22web.org/kapeludaliponuxur.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
- http://kesotufujurox.rf.gd/background_eraser_and_remover_pro_apk.pdfIn PDF document text
- http://faberaladaruz.epizy.com/gulerareromorapakizeweg.pdfIn PDF document text
- http://sobogasitizi.epizy.com/purple_color_background_wallpapers.pdfIn PDF document text
- http://xorewabamav.epizy.com/98553575813.pdfIn PDF document text
- http://limoxukuk.atwebpages.com/mi424wr_rev_f.pdfIn PDF document text
- http://jezowadu.epizy.com/57923767836.pdfIn PDF document text
- http://notumaxesi.epizy.com/durchschnittliche_nderungsrate_aufgaben.pdfIn PDF document text
- http://wavepenaxega.epizy.com/xiwojuli.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011474.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11474 | 5920 bytes |
SHA-256: 077be70e4714d89d5bfcb3b5fe7dbb30fc824e9153e9e2892db39feab37274c4 |
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font_01_sfnt_off0001286a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1286A | 10416 bytes |
SHA-256: 7b6800243c758d427c56a51e442c308d6cabc2336aff72b4bd30f9cbfaa51064 |
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font_02_sfnt_off00014b88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B88 | 4324 bytes |
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
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