MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded URLs, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to a 'case brief'. The ML classifier strongly indicated maliciousness, and the presence of numerous links on disposable hosting further supports a malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/123?utm_term=marbury+versus+madison+case+brief In PDF document text
- https://cdn.sqhk.co/xibidodoko/ih7zVB7/merge_object_blender_2._8.pdfIn PDF document text
- https://cdn.sqhk.co/rapawaferew/hac2hiK/bombshell_salon_richmond_va.pdfIn PDF document text
- https://cdn.sqhk.co/ninubisidire/DghODNX/face_mask_for_toddler_pattern.pdfIn PDF document text
- https://cdn.sqhk.co/pixafosabow/koJnZjf/real_piano_tiles_online.pdfIn PDF document text
- https://cdn.sqhk.co/zewumabigige/aiGhf5q/wordscapes_level_8239.pdfIn PDF document text
- https://cdn.sqhk.co/mabuviko/hfyiagf/can_t_top_up_my_o2_phone.pdfIn PDF document text
- https://cdn.sqhk.co/nutewakizi/hdagji4/wd_my_cloud_hard_drive_failure.pdfIn PDF document text
- http://help-igcopyright.xyz/zewupofonodiwot98kjk.pdfIn PDF document text
- http://comp-arenda.site/fijojilatziq8.pdfIn PDF document text
- http://barashik.space/mh_cet_law_2019_application_form_feesff27r.pdfIn PDF document text
- https://cdn.sqhk.co/ruzaxube/n2ujf5F/34406300548.pdfIn PDF document text
- http://salestore.pro/listening_practice_through_dictation_google_drivejiv2t.pdfIn PDF document text
- http://visionnew.xyz/depuketurumanatozrj8my.pdfIn PDF document text
- http://best-ital.fun/30166632379mzwxw.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/sobaketemu/chelan_wa_weather_report.pdfIn PDF document text
- https://s3.amazonaws.com/kikunojulejuj/dojavazepevokudin.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
- http://www.geocities.com/dnhhngIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 6
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000136af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136AF | 6444 bytes |
SHA-256: b2eb716f9f1f9b32722e1ea04f9b39d21e8999039eb4c7f2f5ede24790997a64 |
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font_01_sfnt_off0001469f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1469F | 5444 bytes |
SHA-256: 21f53bc5f7bb91508a2bd8a21e683e3039ba4c8081916d3cff4b401731b1abb8 |
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font_02_sfnt_off0001591e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1591E | 4004 bytes |
SHA-256: 707a901f1a2157d6bc282e1f05c1be18753ff9299309b55a03a0c7ca34ebff01 |
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font_03_sfnt_off00016524.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16524 | 11596 bytes |
SHA-256: 32076f97f8057275c98a348ceef8efee7d6d16549b0c628cf222b352d223292a |
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font_04_sfnt_off00018c8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18C8F | 16084 bytes |
SHA-256: 0151570569594d5a5ccfeb908d198120a09f680d577f0f73a04dfc340564097a |
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font_05_sfnt_off0001a13e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A13E | 6632 bytes |
SHA-256: d5a1d8737dfb1a78803a8916f9c3b8cdcb79aa88dd6d2d1640c86d0ffdb0e3d7 |
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