MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious intent, including suspicious and invisible links pointing to external domains. The ClamAV detection and ML classifier strongly suggest this is a phishing or trojan delivery mechanism. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely leading to a second-stage download or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LUREPDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
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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://jacksth.ru/strik?utm_term=libro+la+compuerta+numero+12+pdf PDF link annotation
- http://vk-settings-change.online/640007418901z98m.pdfIn PDF document text
- http://help-verification.com/smash_2_download_dolphinylrok.pdfIn PDF document text
- http://nawavidosuk.medianewsonline.com/infarction_pathology.pdfIn PDF document text
- http://artdebug.site/power_audio_pro_music_player_apkpurehg6ut.pdfIn PDF document text
- http://com-login8.xyz/88234320843k8rkx.pdfIn PDF document text
- http://xxlmature.site/wekapiuvzur.pdfIn PDF document text
- http://smilex.club/my_talking_hank_unlimited_coins_apk_downloadjh4u3.pdfIn PDF document text
- http://tehnikator.ru/you_tube_bobbi_brown_makeup_tutoriallfgae.pdfIn PDF document text
- http://nukels.xyz/learn_python_for_data_analysis_freexpd6g.pdfIn PDF document text
- http://webcam-model.online/bapinovd36mb.pdfIn PDF document text
- http://salet.store/tudavamekiblz095.pdfIn PDF document text
- http://rowowesofazov.medianewsonline.com/zofuluzigasoku.pdfIn PDF document text
- http://winfreeiphone.xyz/gopesosowfqhp.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/c293303d-dae1-4a4f-8d37-a4dbd767da1f/duxafejixowa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d7f44f23-2992-4f3f-b339-1f3397591821/87216188411.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b4163399-39a9-4eb0-a750-c943ae35461f/polk_magnifi_mini_arc_not_working.pdfIn PDF document text
- http://jiwodasovizo.rf.gd/tinkle_magazine_free.pdfIn PDF document text
- http://kopolug.myartsonline.com/durusopafumenema.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f3ff40d9-6258-4a16-9b80-70cbd3767369/pipabuzoxafujuzi.pdfIn PDF document text
- http://guwitus.epizy.com/apache_poi_scratchpad_jar.pdfIn PDF document text
- http://pijosufun.myartsonline.com/imam_bukhari_biography.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/614c80c8-3dc9-47af-8003-c8aee508a9d5/fibenuxupodumoroz.pdfIn PDF document text
- http://kipazafar.atwebpages.com/agenda_2020_italiano.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_off0000ffbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFBC | 5388 bytes |
SHA-256: 9b0038a93150ece5eec076123f4b45d129c832ebd25c26d29fde6018d728ebdb |
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font_01_sfnt_off000111fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111FE | 11220 bytes |
SHA-256: c83ed9acccd762fc7a64674ae868f00e5f4509b8e2e3260ddf0786c8fb3d07ac |
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