MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains a large number of external links, masquerading as a 'Verbal reasoning practice test pdf'. The heuristic 'PDF_SEO_LINK_FARM' indicates a link farm strategy, likely to redirect users to malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the primary attack vector appears to be social engineering through deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://resalured.ru/award?keyword=verbal+reasoning+practice+test+pdf PDF link annotation
- https://cdn.sqhk.co/kulizuxekume/0ajcVVq/62056278694.pdfIn PDF document text
- https://cdn.sqhk.co/tixukiko/swGvhat/unnie_and_oppa_doll_mod_apk.pdfIn PDF document text
- https://metogixum.weebly.com/uploads/1/3/0/7/130775033/binepetije-fekoku-kuzok.pdfIn PDF document text
- https://cdn.sqhk.co/bulunazi/ihfycjg/osrs_dragon_hunter_crossbow_crashing.pdfIn PDF document text
- https://cdn.sqhk.co/vefemonuru/fXgcgec/bootstrap_table_search_form.pdfIn PDF document text
- https://pusasosabuni.weebly.com/uploads/1/3/4/6/134654602/jifijar.pdfIn PDF document text
- https://cdn.sqhk.co/tisojubew/ge8ghMo/vikog.pdfIn PDF document text
- https://cdn.sqhk.co/tukawezezo/gghc3ig/xamixivegevatigilo.pdfIn PDF document text
- https://cdn.sqhk.co/nilofixogezu/jjIhehd/nemolilaguduxilipazufopib.pdfIn PDF document text
- https://nokaxogu.weebly.com/uploads/1/3/4/5/134520383/vobovuroka_tuzuvasegi_wedawidoj_tixule.pdfIn PDF document text
- https://naxesitigas.weebly.com/uploads/1/3/0/7/130740165/3435479c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://f38be386-5799-403b-9303-fb121113655a.filesusr.com/ugd/6f1aa7_be4d39965f7945b08aacf983bbd27d86.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/bae7fce0-b741-4aa5-af04-dd6f8176c6c9/covalent_bonding_practice_problems_worksheet_answers.pdfIn PDF document text
- https://ad9e3d1f-bb22-46ca-892e-b6aa3325a756.filesusr.com/ugd/837d34_ee8ef9f0636243b788a05423e3b577da.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/646e70cf-ce61-41ff-a897-338f76fe6a59/61987243500.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8364e1d0-ed9f-4bfc-881c-423358e73462/how_to_correct_a_scoliosis_with_exercise_and_stretching_edward_paget.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7fc860d4-7fbb-400e-8c2f-5e6e59e782b7/how_do_i_program_my_woods_timer.pdfIn PDF document text
- https://c8070bf9-ed42-4c5d-8eb8-ca35ee70f136.filesusr.com/ugd/d38238_f69eeb5e39c140fc9699fbf5a47697a2.pdf?index=trueIn PDF document text
- http://waminakukivexo.rf.gd/wesosawegevipiso.pdfIn PDF document text
- http://leremijidi.rf.gd/mexivikizanovesi.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_off0000dfbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFBF | 5428 bytes |
SHA-256: 0a9236b4b6f9eea04a7c4c48890f2ae2cd1fbbfac6d81bf2681845493bc91a36 |
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font_01_sfnt_off0000f240.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF240 | 11032 bytes |
SHA-256: 0874e6942b5f62ad517bafe491bf1a30e730777b04cb8993597b4dd18b1cabb9 |
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