MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external URIs, with one prominent URL pointing to a suspicious domain ('pelibifir.ru') that is likely used for phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for a large number of links, further suggesting malicious intent. Although no scripts were explicitly extracted, the presence of external links and the ML classifier's high confidence score point towards a malicious document, likely a phishing lure or a downloader.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://pelibifir.ru/strik?utm_term=dise%25C3%25B1o+de+vigas+y+columnas+de+concreto+armado+pdf
- http://pemutoguxo.66ghz.com/mazibo.pdf
- https://cdn.sqhk.co/xasurila/Rgdjjii/77353183055.pdf
- https://cdn.sqhk.co/bufomofa/h2OjaWY/battleship_game_app.pdf
- https://wufovepujiz.weebly.com/uploads/1/3/0/7/130775368/8409161.pdf
- https://noromilo.weebly.com/uploads/1/3/4/5/134587763/fac1f99.pdf
- https://fafetomipisiso.weebly.com/uploads/1/3/4/6/134603542/valufamam.pdf
- https://gipazekafasulal.weebly.com/uploads/1/3/4/6/134600210/b93c3.pdf
- https://cdn.sqhk.co/rabataxuvax/Pjchbhf/the_last_ninja_origin_gameplay.pdf
- https://fadefufogu.weebly.com/uploads/1/3/5/9/135960472/177e426649e33.pdf
- https://kuxorife.weebly.com/uploads/1/3/5/3/135313812/4874543.pdf
- https://zegikawa.weebly.com/uploads/1/3/4/6/134640481/dosum-vupazad-vujibene-kugivuwugokovu.pdf
- https://cdn.sqhk.co/pujixefan/icwggfs/odia_album_song_dj_remix.pdf
- http://pipabineki.22web.org/selenium_testng_tutorial_guru99.pdf
- http://fontawesome.iohttp://fontawesome.io/license/
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/vavejijitatofu/wulizitaramodaderes.pdf
- http://fasevofal.epizy.com/entrepreneurship_class_11_cbse_book.pdf
- https://s3.amazonaws.com/wuvepilamamuse/taxafavijemitanuven.pdf
- https://s3.amazonaws.com/lorerexeg/balle_balle_song.pdf
- http://gofeneneju.rf.gd/dozokabofirokorozuvewuti.pdf
- https://uploads.strikinglycdn.com/files/4dec9f8c-460d-458e-ae43-cf6e104932e8/seo_tutorial_for_beginners_in_urdu.pdf
- https://uploads.strikinglycdn.com/files/f1a79960-df35-452b-89ca-b4c0673ac285/grounded_theory_methodology_in_information_systems_research.pdf
- https://uploads.strikinglycdn.com/files/d8f1128d-70ff-4896-80b0-1dc1b76dae0e/poulan_pro_parts_manual.pdf
- https://uploads.strikinglycdn.com/files/c0e9900f-7e2b-4bc3-80b1-fe09ed589168/principles_of_risk_management_and_insurance.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- https://savannah.gnu.org/projects/freefont/
- http://www.gnu.org/licenses/
- http://www.gnu.org/copyleft/gpl.html
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_002_off00014cc9.bin52a44e90d97d7680613a35b3bd32b3c8c24595b42cda2816a7a0a25ed58b2dc2 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x14CC9 | 14756 bytes |
font_01_sfnt_off000176fe.binae3c114c0800d7416027658180d7b553168033c58ffd3422f4a1f636b10920f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x176FE | 2628 bytes |
font_02_sfnt_off00018270.bin8daa6ee05146195960991ddb5143e19398e05daa089c29d0d977e753a6ace390 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18270 | 5848 bytes |
font_03_sfnt_off00019618.bin96df6eb1242fbc58480faa6331500e98811342e6dd92b9ca73b5775efd02369d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19618 | 14168 bytes |
font_04_sfnt_off0001c3e7.bine93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C3E7 | 16204 bytes |
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