MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with one specifically pointing to 'jacksth.ru' and disguised as a 'casual leave application format'. The PDF also exhibits characteristics of a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the presence of external URIs and the overall heuristic profile strongly indicate a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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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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/award?keyword=casual+leave+application+format+for+central+govt.+employee+pdf PDF link annotation
- http://meetraisins.club/review_of_the_stand_cbs_all_accessltnij.pdfIn PDF document text
- http://gudowubalage.iblogger.org/are_project_zorgo_real.pdfIn PDF document text
- http://lapogomofirubu.22web.org/dejinemuvum.pdfIn PDF document text
- http://checkmyscore.info/736457615245rsvh.pdfIn PDF document text
- https://cdn.sqhk.co/nimuxugemu/ha9Ddif/monkey_d_luffy_gear_5_manga.pdfIn PDF document text
- http://tofuvuniz.iblogger.org/homelite_blower_carburetor_diagram.pdfIn PDF document text
- https://cdn.sqhk.co/zisubiziwu/e54fMic/vegojimopul.pdfIn PDF document text
- https://cdn.sqhk.co/noxibogalu/shgikie/vuwofobizizobikom.pdfIn PDF document text
- http://lnstagramverifiedbadgeshelpcenters.net/zenavubepaterifaxipixov74p1p.pdfIn PDF document text
- https://cdn.sqhk.co/wexunaveb/jaifjfU/62227059645.pdfIn PDF document text
- http://vienvozvrat.site/21685850972gv3pp.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://21d44941-995c-48b9-956b-8145330e20d5.filesusr.com/ugd/577b75_32a6a8482c904ac8804f5c4218b1ae91.pdf?index=trueIn PDF document text
- https://6f4861c6-cdf0-4a5f-ba2d-f9c5e5bfbee6.filesusr.com/ugd/77941b_4391cf4200f74ed6bf1ae84cfa45c9a9.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/74c29ce3-7f46-41fc-8228-268efbf57a0b/black_diamond_storm_headlamp_instructions.pdfIn PDF document text
- https://e18e6c05-101e-4f41-9c4d-f518aea09dbb.filesusr.com/ugd/7972b3_01effb4d3af542b686f01c8d716bedf5.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ef91d147-b211-4d72-a464-f2245109aa4c/68139758354.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26f67760-8129-4070-a3bb-f6b64df15138/math_worksheets_grade_3.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/546ae0ed-9db2-41f9-94de-166ffd1aaaf4/xixore.pdfIn PDF document text
- https://5e73d190-47a4-4ead-99bf-7e9069f06a16.filesusr.com/ugd/55cc32_8b4832c08cab4a4aab18111a6666446a.pdf?index=trueIn PDF document text
- http://nisogifamesada.epizy.com/pdf_viewer_plus_7.1_free_download.pdfIn PDF document text
- http://mewexam.epizy.com/landscape_archaeology_theories.pdfIn PDF document text
- https://d9226533-59f4-4737-ae77-cfa9cdee5378.filesusr.com/ugd/d7c203_efad55067f3642f798e6d97cf50b9b30.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/96d12fb2-2759-4b90-ae1d-73f428f7568f/nejef.pdfIn PDF document text
- https://eaa62ee9-779c-4a2d-9f50-6c66b019a99c.filesusr.com/ugd/1cc777_85a66c630e544445851ebd050092d076.pdf?index=trueIn 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_off0000f7c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C0 | 5576 bytes |
SHA-256: 5a3e7a744bb0f113fed1fede13e461c0ef2dff5126e648fe848bc33f21d6b17e |
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font_01_sfnt_off00010ab0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB0 | 10184 bytes |
SHA-256: 5abd00c309d92904abc9e13e1a067b96bc65b69b1fb4c5c5bb96c225cef26e6e |
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